Return-Path: X-Scanned-By: RAE MPP/Clamd http://raeinternet.com/mpp X-Scanned-By: This message was scanned by MPP Lite Edition (www.messagepartners.com)! X-Real-To: stagecraftlist [at] theatrical.net Received: by prxy.net (CommuniGate Pro PIPE 4.2.10) with PIPE id 27449711; Thu, 09 Feb 2006 03:02:12 -0800 X-ListServer: CommuniGate Pro LIST 4.2.10 List-Unsubscribe: List-ID: Message-ID: From: "Stagecraft" Sender: "Stagecraft" To: "Stagecraft" Precedence: list Subject: Stagecraft Digest #684 Date: Thu, 09 Feb 2006 03:01:00 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Disposition: inline X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on prxy.net X-Spam-Status: No, score=-5.6 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, TW_CN,TW_HJ autolearn=unavailable version=3.0.4 X-TFF-CGPSA-Version: 1.4f2 X-prxy-Spam-Filter: Scanned For info, archives & UNSUBSCRIBE, see --------------------------------------------------- Stagecraft Digest, Issue #684 1. Re: CT by IAEG [at] aol.com 2. Re: Good news: Blue Light Makes People Alert at Night by John McKernon 3. Re: Counter Weighjt Systems by "Bill Conner" 4. Re: ERS Optics by "Paul Schreiner" 5. Re: Counter Weighjt Systems by "Peter Scheu" 6. Boom by "Maurice Moe Conn" 7. Re: Boom by Jerry Durand 8. Re: Clear Horses or Unicorns by "Ray-Pfeifer, Merel" 9. Re: Football Fields by SS 10. Life of a counter-weight system... by "Wild, Larry" 11. Re: Life of a counter-weight system... by "Paul Schreiner" 12. Re: Life of a counter-weight system... by Stephen Litterst 13. Re: Life of a counter-weight system... by "Peter Scheu" 14. Re: Boom by rwhitco [at] comcast.net 15. Re: Boom by Jerry Durand 16. Re: Boom by "Paul Schreiner" 17. Re: Boom by rwhitco [at] comcast.net 18. Re: Boom by Barney Simon 19. Re: Boom by Stephen Litterst 20. Re: Boom by "Maurice Moe Conn" 21. Re: Boom by Bruce Purdy 22. Re: Clear Horses or Unicorns by Steve Larson 23. Re: Boom by Jerry Durand 24. Re: ERS Optics by Jonathan Pellow 25. cardboard cars by "Storms, Randy" 26. Re: Clear Horses or Unicorns by "Matthew Breton" 27. Re: ERS Optics by "Paul Schreiner" 28. Re: Good news: Blue Light Makes People Alert at Night by CB 29. Re: ERS Optics by FrankWood95 [at] aol.com 30. Re: Boom by FrankWood95 [at] aol.com 31. Re: ERS Optics by FrankWood95 [at] aol.com 32. excess-flow check valves in scenery by Matthew Jordan 33. Re: excess-flow check valves in scenery by "Paul Schreiner" 34. Re: Clear Horses or Unicorns by "Stephen E. Rees" 35. Re: Life of a Counter-weight system by MissWisc [at] aol.com 36. Re: Clear Horses or Unicorns by "richard j. archer" 37. Re: Job titles by CB 38. Re: Clear Horses or Unicorns by "Michael Diederich" 39. Re: CT by Ken Romaine 40. Re: AHJ and fire by CB 41. Clear Horses or Unicorns by CB 42. Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by "Peter Scheu" 43. Fw: Colored Lamps for Music stand lights by "Randy B." 44. Conversion of Gell numnber by "Randy B." 45. Re: Conversion of Gell numnber by "Paul Sanow" 46. Re: Conversion of Gell (sic) numnber by "Paul Schreiner" 47. Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by Scott Parker 48. Re: Job titles by "Idaho Scenic and Rigging" 49. Re: excess-flow check valves in scenery by Matthew Jordan 50. Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by FrankWood95 [at] aol.com 51. Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by "ladesigners [at] juno.com" 52. Re: Conversion of Gell numnber by "Thomas Schraeder" 53. Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by "ladesigners [at] juno.com" 54. Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by Bill Sapsis 55. Re: Life of a counter-weight system... by Bill Sapsis 56. Re: Colored Lamps for Music stand lights by Greg Bierly 57. Re: Conversion of Gell numnber by "The Elliott Family" 58. Re: Life of a counter-weight system... by Bill Sapsis 59. Re: AHJ and fire by "Laura McMeley" 60. Re: Colored Lamps for Music stand lights by gregg hillmar 61. Re: Boom by Jim Hyslop 62. Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by MissWisc [at] aol.com 63. Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by "ladesigners [at] juno.com" 64. Cirque in San Jose by Mat Goebel 65. Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) by "Idaho Scenic and Rigging" 66. Re: Boom by "Bill Nelson" 67. Re: ERS Optics by "Bill Nelson" 68. Re: cable drums? by "Occy" 69. Re: ERS Optics by "Bill Nelson" 70. Re: Football Fields by "Alf Sauve" *** Please update the subject line of your reply to use the subject *** line of the message you are replying to! Please only reply to *** one message subject in each reply. ---------------------------------------------------------------------- From: IAEG [at] aol.com Message-ID: <1a2.44ab8480.311b485a [at] aol.com> Date: Wed, 8 Feb 2006 08:12:58 EST Subject: Re: CT In a message dated 2/8/06 5:40:59 AM, bpmunroe [at] gmail.com writes: << Cirque is currenlty playing Bridgeport, CT. However, it is there first ever arenas tour... I am in CT but haven't seen many tent shows here, aside from small local stuff. Never dealt with the permitting. Try getting in touch with Stamford Tent http://www.stamfordtent.com/ Brian Munroe bpmunroe [at] gmail.com >> you are referring to DELIRIUM I believe, ,, which although produced and presented by C d S is reallly a music concert featuring music from a variety of their past shows along with some live performances very best, Keith Arsenault President IAEG - International Arts & Entertainment Group Tampa, Florida ------------------------------ Date: Wed, 08 Feb 2006 08:43:15 -0500 Subject: Re: Good news: Blue Light Makes People Alert at Night From: John McKernon Message-ID: In-Reply-To: > One of the great secrets that I learned about how to do a >> really excellent black theatre ( that's the one where black hooded >> robed people wander around invisibly moving stuff around magically >> under UV light) works so much better when there are some red lamps >> surrounding the scene. Famous People Players, in Toronto, uses blinders that Ken Billington designed. They're essentially two-sided footlights: The downstage side is frosted plexi and has three color circuits behind it. The upstage side contains several rows of UV fluorescent bulbs. The UV bulbs light the puppets. The downstage blinders are always on, in an appropriate color and at a level that keeps the audience's eyes irised down just enough that they can't see the people-in-black from being seen. The minute you turn the blinders off, the audience can see all the tricks (and in fact, they do that occasionally as part of the show). There are also UV tubes overhead, and just a few stage lights for curtain call. - John McKernon ------------------------------ Message-ID: <003301c62cb7$49fcf630$6501a8c0 [at] BCA1> Reply-To: "Bill Conner" From: "Bill Conner" Subject: RE: Counter Weighjt Systems Date: Wed, 8 Feb 2006 07:55:15 -0600 Brian James wrote: "Is there a working acceptable standard for counterweight systems." If your looking for a standard - as in a code or regulation for minimums for safety and welfare - Peter Scheu is correct; one in process in the US and one published in the UK. I believe there are others at least in Europe but I've not seen an English language version of one so can't swear to that. If you looking for a guide for good design, then you need to go to rigging system designers. You'll find many on the list who offer those services. (I believe those that offer just design services and don't sell the product are more objective about the best design for your theatre but not all will agree.) Good design is about so much more than minimums for safety and there really isn't one good design for all systems. A code or standard is not a design guide and certainly not a guide for good design. For instance, a 7/11 stair is accepted as a minimum but lower risers and longer treads are safer and more functional for many people, especially older and younger ones. A 42" guard was based on the center of gravity of the 95 percentile male a long time ago; a 48" guard is safer but we accept 42". So are you looking for minimums for safety or good design? Bill Conner, ASTC, ETCP CR-T ------------------------------ Subject: RE: ERS Optics Date: Wed, 8 Feb 2006 09:22:37 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A042A9B25 [at] exchange.rmwc.edu> From: "Paul Schreiner" > The reflector is only a bit over half an ellipse. As such,=20 > there is no way that the light rays are focused back to the=20 > second focus. That would be done by the part of the ellipse=20 > that is missing. Remove the lens set and you will not find an=20 > image of the filament. No! One of the ways you can describe/define an ellipsoid (which is what the reflectors are, since they do tend to be 3-dimensional) is that any line that passes through one focal point and reflects off the inside of the ellipsoid will pass through the other focal point. It doesn't require two bounces to do this. Any light that (a) starts at F1 and (b) reflects off the part of the reflector that IS there WILL pass through F2. It's the light that doesn't hit the missing part of the reflector that doesn't. > The purpose of the reflector is to get as much of the light=20 > as possible directed at the gate.=20 Hence placing the gate at or very near the F2 point of the reflector. > Any light off the reflector=20 > will be somewhat converging, the light directly off the=20 > filament will be diverging. Some of the direct light is lost=20 > - as it does not hit the gate. >=20 > The gate, iris, shutters and pattern are all placed as close=20 > to the lamp as possible, to minimize light loss - which means=20 > that they cannot be any closer than the front of the reflector. That doesn't quite make sense to me. If what you're saying is true, then the S4 would be about six inches shorter than it is now, and the shutters would be a lot closer to the lamp base. ------------------------------ Reply-To: From: "Peter Scheu" Subject: RE: Counter Weighjt Systems Date: Wed, 8 Feb 2006 09:43:39 -0500 Organization: Scheu Consulting Services, Inc. Message-ID: In-reply-to: Bill Conner wrote: >If you looking for a guide for good design, then you need to >go to rigging >system designers. You'll find many on the list who offer >those services. OOOOO... PICK ME! PICK ME! ...or Bill, ...or Bill... ;-) Peter Scheu Scheu Consulting Services, Inc. www.scheuconsulting.com Tel: 315.422.9984 fax: 413.513.4966 ------------------------------ Message-ID: From: "Maurice Moe Conn" Subject: Boom Date: Wed, 08 Feb 2006 14:53:35 +0000 Anyone see or heard about the folks in CO that blew up there car? They tried to make homemade fireworks by filling a balloon with welding gas. Now why didn't I think of that!? Moe Help support Long Reach Long Riders 2006 Charity Ride. For Donation and/or Rider information, Check out: www.lrlr.org ------------------------------ Message-Id: <7.0.1.0.0.20060208073443.01f4d428 [at] interstellar.com> Date: Wed, 08 Feb 2006 07:42:11 -0800 From: Jerry Durand Subject: Re: Boom In-Reply-To: References: At 06:53 AM 2/8/2006, you wrote: >Anyone see or heard about the folks in CO that blew up there >car? They tried to make homemade fireworks by filling a balloon >with welding gas. >Now why didn't I think of that!? > > Not exactly fireworks when it leaves a crater. :( But, that's like all the "demonstrations" put on before the 4th every year where they blow up watermelons, etc. using "only" the powder from a thousand or more firecrackers. So, did these guys win the Darwin award, or do we have to worry about them reproducing? Anyone attending the Western Winter Blast next week is welcome to look me up in the manufacturing area, I'll be building non-bomb rockets. -- Jerry Durand, Durand Interstellar, Inc. www.interstellar.com 219 Oak Wood Way, Los Gatos, California 95032-2523 USA tel: +1 408 356-3886, USA toll free: 1 866 356-3886 ------------------------------ Date: Wed, 08 Feb 2006 10:43:15 -0500 Subject: Re: Clear Horses or Unicorns From: "Ray-Pfeifer, Merel" Message-ID: In-Reply-To: Have you tried the "Oriental Trading Company"? They always seem to have bulk quantities of little knicky kacnky thingys. Or could the current unicorns undergo a hornectomy? I love to make up words and drive my spellchecker crazy. Merel On 2/7/06 6:55 PM, "Stephen E. Rees" wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > Sorry! This is not about the A/B Clydesdales and the Super Bowl. > > The director of Glass Menagerie does not now wish to use the glass > unicorns that were made especially for the production. Rather, she > wants to use small clear plastic horses instead. Any ideas where these > might be found? The usual suspects don't seem to have them. About 1.5 > - 2" tall and 2-3" long would be ideal. Googling has been unsuccessful > so far. > TIA. > Steve Rees, TD > SUNY-Fredonia > ------------------------------ Message-ID: <8231e7ea0602080748g1bdd3552id598b5948d565fbe [at] mail.gmail.com> Date: Wed, 8 Feb 2006 10:48:07 -0500 From: SS Subject: Re: Football Fields In-Reply-To: References: >>>>> how wide is it from side line to side line? Also, how big is the end = zone? We are looking at doing an event on a field and I am trying to figure out how much space I have.<<<<<< Give this website a shot as well: http://tinyurl.com/9olez They even have a PDF downloadable diagram, dimensioning and all!! While the provided info is a given, heed Dale's advice. Head over to the field and do your own investigation. Talk to the grounds crew, facilities, and look for all that "other stuff" that will bite you in the butt later because you didn't know about it :) HTH -SS TTS-EKU "Oh, and next Friday... is Hawaiian shirt day... so, you know, if you want to you can go ahead and wear a Hawaiian shirt and jeans. " --Bill Lumbergh ------------------------------ Subject: Life of a counter-weight system... Date: Wed, 8 Feb 2006 09:49:12 -0600 Message-ID: <79EC830AA6FE144797DDB30DC498593804FEE7B1 [at] nsu-ex01.nsu.local> From: "Wild, Larry" Does a wire-guided, counter-weight system have a life span? Should it be = replaced in 10 years? 20 years? 30 years? Is a system installed in the = early 1970s still safe?=20 Larry Wild Wildl [at] Northern.edu ------------------------------ Subject: RE: Life of a counter-weight system... Date: Wed, 8 Feb 2006 10:57:06 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A042A9B29 [at] exchange.rmwc.edu> From: "Paul Schreiner" > Does a wire-guided, counter-weight system have a life span?=20 > Should it be replaced in 10 years? 20 years? 30 years? Is a=20 > system installed in the early 1970s still safe?=20 Depends. Does it get regular exercise? What's the family history? Any tobacco use? Seriously, though, the general answer is...maybe. Depends on a lot of factors, including history of use, inspections, the quality of the original installation, and so forth. Some components that are fairly replaceable wear out faster than others. You'd need a qualified, outside individual to do a thorough inspection before any sort of determination could be made. I've worked with systems built around that time that were still rock solid. I've seen newer ones that had half the linesets out of order. Hey, Unka Bill, what's yer phone number again? :) ------------------------------ Date: Wed, 08 Feb 2006 11:02:40 -0500 From: Stephen Litterst Subject: Re: Life of a counter-weight system... In-reply-to: Message-id: <43EA1620.9000504 [at] ithaca.edu> References: Paul Schreiner wrote: > --------------------------------------------------- > Hey, Unka Bill, what's yer phone number again? :) (800)SAPSIS-1 That's (800)727-7471 on teh intarweb at www.sapsis-rigging.com Steve L. (Not an SRI employee, just a long-time fan and occasional customer) -- Stephen Litterst Technical Supervisor Ithaca College, Theatre Arts 607.274.3947 slitterst [at] ithaca.edu ------------------------------ Reply-To: From: "Peter Scheu" Subject: RE: Life of a counter-weight system... Date: Wed, 8 Feb 2006 11:03:18 -0500 Organization: Scheu Consulting Services, Inc. Message-ID: In-reply-to: Larry Wild wrote: >Does a wire-guided, counter-weight system have a life span? >Should it be replaced in 10 years? 20 years? 30 years? Is a >system installed in the early 1970s still safe? All depends on how heavily the system was used and how well the system was maintained. Under "normal" conditions with a program of ongoing inspections and proper maintenance, the lifespan can exceed 30 years. I've seen hemp systems from the turn of the LAST century that were still safe, but only because they were properly maintained. If you can't verify regular inspections and/or maintenance, then the only real way to determine if your system is on its last legs is to have it thoroughly inspected by a qualified person. Peter Scheu Scheu Consulting Services, Inc. www.scheuconsulting.com Tel: 315.422.9984 fax: 413.513.4966 ------------------------------ From: rwhitco [at] comcast.net Subject: Re: Boom Date: Wed, 08 Feb 2006 16:09:07 +0000 Message-Id: <020820061609.29520.43EA17A2000772F4000073502206824693010C9B0708999D [at] comcast.net> -------------- Original message ---------------------- From: "Maurice Moe Conn" Anyone see or heard about the folks in CO that blew up there car? They > tried to make homemade fireworks by filling a balloon with welding gas. It was on the local news here. They filled a baloon with acetylene and were headed to a Super Bowl party. Apparently the movement of the baloon in the back seat caused a static build up. The police found the abandoned car and traced the owners to their home. They were suffering from burns and shrapnel wounds. The car has a domed roof now. Kind of funny looking. Randy Whitcomb Manager/TD Price Civic Aud. Loveland, CO. ------------------------------ Message-Id: <7.0.1.0.0.20060208081319.01f53120 [at] interstellar.com> Date: Wed, 08 Feb 2006 08:14:27 -0800 From: Jerry Durand Subject: Re: Boom In-Reply-To: References: At 08:09 AM 2/8/2006, you wrote: >The police found the abandoned car and traced the owners to their >home. They were suffering from burns and shrapnel wounds. The car >has a domed roof now. Kind of funny looking. Must have been a really small balloon, a regular sized one with a mix of acetylene and oxygen in it would have done a LOT more damage. -- Jerry Durand, Durand Interstellar, Inc. www.interstellar.com 219 Oak Wood Way, Los Gatos, California 95032-2523 USA tel: +1 408 356-3886, USA toll free: 1 866 356-3886 ------------------------------ Subject: RE: Boom Date: Wed, 8 Feb 2006 11:15:52 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A042A9B2B [at] exchange.rmwc.edu> From: "Paul Schreiner" > Anyone see or heard about the folks in CO that blew up there=20 > car? They=20 > > tried to make homemade fireworks by filling a balloon with=20 > welding gas. =20 >=20 > It was on the local news here. They filled a baloon with=20 > acetylene and were headed to a Super Bowl party. Apparently=20 > the movement of the baloon in the back seat caused a static=20 > build up. =20 Anyone have an online link to the story? ------------------------------ From: rwhitco [at] comcast.net Subject: Re: Boom Date: Wed, 08 Feb 2006 16:26:23 +0000 Message-Id: <020820061626.15137.43EA1BAF0006014200003B212200761394010C9B0708999D [at] comcast.net> > Must have been a really small balloon, a regular sized one with a mix > of acetylene and oxygen in it would have done a LOT more damage. The car was totaled. Go to www.9news.com and search "explosive baloon." I havn't downloaded tiny url yet. ------------------------------ Message-ID: <43EA1FD0.10705 [at] JosephCHansen.com> Date: Wed, 08 Feb 2006 11:44:00 -0500 From: Barney Simon Reply-To: Barney [at] JosephCHansen.com Organization: Joseph C Hansen Co., Inc Subject: Re: Boom References:

In-Reply-To: Jerry Durand wrote: > Must have been a really small balloon, a regular sized one with a mix > of acetylene and oxygen in it would have done a LOT more damage. Yes, about a year ago, a car with acetylene tanks in the trunk blew up near my house... I was six blacks away and it woke me up. My PT at the gym lived 10-12 blocks the other way from the blast and said she heard it. -- Barney Simon JC Hansen Co., Inc Drapes Drops and Dance Floors 423 West 43rd Street, NYC 212-246-8055 F:212-246-8189 JCHansen.com 866-988-8055 ------------------------------ Date: Wed, 08 Feb 2006 11:46:47 -0500 From: Stephen Litterst Subject: Re: Boom In-reply-to: Message-id: <43EA2077.2080104 [at] ithaca.edu> References:

Barney Simon wrote: > Yes, about a year ago, a car with acetylene tanks in the trunk blew up > near my house... I was six blacks away and it woke me up. Would those be black legs, or full stage black drapes? Steve L. -- Stephen Litterst Technical Supervisor Ithaca College, Theatre Arts 607.274.3947 slitterst [at] ithaca.edu ------------------------------ Message-ID: In-Reply-To: From: "Maurice Moe Conn" Subject: Re: Boom Date: Wed, 08 Feb 2006 17:17:11 +0000 What show were you doing to have a car with a trunk full of acetylene tanks on stage only six blacks away? Moe Help support Long Reach Long Riders 2006 Charity Ride. For Donation and/or Rider information, Check out: www.lrlr.org >From: Barney Simon >Reply-To: Barney [at] JosephCHansen.com >To: "Stagecraft" >Subject: Re: Boom >Date: Wed, 08 Feb 2006 11:44:00 -0500 > >For info, archives & UNSUBSCRIBE, see >--------------------------------------------------- > >Jerry Durand wrote: >>Must have been a really small balloon, a regular sized one with a mix of >>acetylene and oxygen in it would have done a LOT more damage. >Yes, about a year ago, a car with acetylene tanks in the trunk blew up near >my house... I was six blacks away and it woke me up. My PT at the gym >lived 10-12 blocks the other way from the blast and said she heard it. > >-- >Barney Simon >JC Hansen Co., Inc >Drapes Drops and Dance Floors > >423 West 43rd Street, NYC >212-246-8055 F:212-246-8189 >JCHansen.com >866-988-8055 > > ------------------------------ Date: Wed, 08 Feb 2006 12:33:28 -0500 Subject: Re: Boom From: Bruce Purdy Message-ID: In-Reply-To: > The car was totaled. Go to > www.9news.com and search "explosive baloon." > I havn't downloaded tiny url yet. Try http://tinyurl.com/dugyb Bruce -- Bruce Purdy Technical Director Smith Opera House ------------------------------ Date: Wed, 08 Feb 2006 12:42:35 -0500 Subject: Re: Clear Horses or Unicorns From: Steve Larson Message-ID: In-Reply-To: I've done this show three times and three times we have used a "glass" menagerie. No breakage. The unicorns that we used were pre-broken and always did what they were supposed to on cue. Go for it. steve > From: "Ray-Pfeifer, Merel" > Reply-To: "Stagecraft" > Date: Wed, 08 Feb 2006 10:43:15 -0500 > To: "Stagecraft" > Subject: Re: Clear Horses or Unicorns > > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > Have you tried the "Oriental Trading Company"? They always seem to have > bulk quantities of little knicky kacnky thingys. > > Or could the current unicorns undergo a hornectomy? > > I love to make up words and drive my spellchecker crazy. > > Merel > ------------------------------ Message-Id: <7.0.1.0.0.20060208093842.01f56f50 [at] interstellar.com> Date: Wed, 08 Feb 2006 09:42:37 -0800 From: Jerry Durand Subject: Re: Boom In-Reply-To: References:

At 09:33 AM 2/8/2006, you wrote: > Try >http://tinyurl.com/dugyb Ah, they just had acetylene in the balloon, no oxygen. Lucky for them, with oxygen they wouldn't have hitched a ride home. Don't do this at home!!!! The static from filling a balloon can make it go off. It's also a felony (improvised explosive device). I'll stick with safe(er) pyro stuff. -- Jerry Durand, Durand Interstellar, Inc. www.interstellar.com 219 Oak Wood Way, Los Gatos, California 95032-2523 USA tel: +1 408 356-3886, USA toll free: 1 866 356-3886 ------------------------------ Message-ID: <43EA3028.9040700 [at] gmail.com> Date: Wed, 08 Feb 2006 12:53:44 -0500 From: Jonathan Pellow Subject: Re: ERS Optics References: In-Reply-To: My understanding of ERS optics, which seems to be corroborated by Stanley McCandless and J. Michael Gillette: An ellipse has two foci (F1 and F2). The optical properties of an ellipsoidal reflector are such that light emitted from a source at F1 will be reflected back through F2. In an ERS, one side of the ellipse is removed so the light can escape (I'm ignoring the light that escapes directly from the lamp toward the lens and only considering the majority of the light that is first focused by the reflector.) The lamp is at F1. The gate, shutters, and pattern slot are beyond the reflector (the truncated ellipse) but before F2, at a plane where the reflected beam is converging toward F2. F2 lies between the gate and the lens(es). At F2 the beam converges and then begins to diverge again; hence the image becomes inverted. The lens also has a focal point, and I _believe_ that when the focus is sharp, the focal point of the lens is aligned with F2. The lens refracts the now-diverging light to create the desired field angle, but the image is not inverted again in the lens. So the beam goes through the gate and then converges at the second focal point of the ellipsoid (F2), which is also the focal point of the lens. From there it diverges again. Only one point of convergance, hence only one inversion of the image. To answer the original question as to why the lens by itself still inverts the image: in the "diagram" described above, remove the lamp and reflector from the picture. Insert your eye near the gate, looking through the lens toward the stage. Light coming in through the lens converges at the lens's focal point, inverting the image, just before it reaches your eye. (Alternatively, view a pattern in the pattern slot from the stage side of the lens. The inversion is the same.) For relevant illustrations: McCandless - A Method of Lighting the Stage, second edition, p.41 and p.46 Gillette - Theatrical Design and Production, third edition, p.338 Jonathan Pellow ------------------------------ Subject: cardboard cars Date: Wed, 8 Feb 2006 10:02:39 -0800 Message-ID: <555928311F8B2943B65FC7197942C3B70538C159 [at] es1.bsdnet.wednet.edu> From: "Storms, Randy" Does anyone have a source for full sized 2-dimensional cardboard = "standees" of realistic cars, trucks, etc.?=20 Randy Storms rstorms [at] bham.wednet.edu ------------------------------ Message-ID: In-Reply-To: From: "Matthew Breton" Subject: Re: Clear Horses or Unicorns Date: Wed, 08 Feb 2006 13:08:46 -0500 >About 1.5 - 2" tall and 2-3" long would be ideal. Doesn't the thirty-foot rule apply here? At this small sizre, the audience may not be able to tell whether they have horns, or even if you've used penguins instead of unicorns. Matthew Breton Technical Director Cambridge Family YMCA Theater (617) 447-5261 (cell) www.cambymca.org _________________________________________________________________ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement ------------------------------ Subject: RE: ERS Optics Date: Wed, 8 Feb 2006 13:13:34 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A042A9B2E [at] exchange.rmwc.edu> From: "Paul Schreiner" > The gate, shutters, and pattern slot are beyond the=20 > reflector (the=20 > truncated ellipse) but before F2, at a plane where the=20 > reflected beam is=20 > converging toward F2. F2 lies between the gate and the=20 > lens(es). At F2=20 > the beam converges and then begins to diverge again; hence the image=20 > becomes inverted. Okay, while I've expressed my expectation that the gate was beyond F2, I can understand this. > The lens also has a focal point, and I _believe_ that when=20 > the focus is=20 > sharp, the focal point of the lens is aligned with F2. The lens=20 > refracts the now-diverging light to create the desired field=20 > angle, but=20 > the image is not inverted again in the lens. So the beam=20 > goes through=20 > the gate and then converges at the second focal point of the=20 > ellipsoid=20 > (F2), which is also the focal point of the lens. From there=20 > it diverges=20 > again. Only one point of convergance, hence only one=20 > inversion of the=20 > image. Wouldn't the type of lens used here become an issue? It was always my understanding in physics that a plano-convex lens would refract the beam as you describe, but a fully-convex lens would have a second focal point on the other side and then therefore refract the beam through that point (which I've referred to previously as F3). Or does this not matter? ------------------------------ Message-Id: <3.0.6.32.20060208114220.00d2b860 [at] pop.west.cox.net> Date: Wed, 08 Feb 2006 11:42:20 From: CB Subject: Re: Good news: Blue Light Makes People Alert at Night >my eyes don't have to >keep adjusting between a dark interior and the light cast by the headlights. Lafayette, IN, hunh? (notetoself... driving at night in Lafeet) All kidding aside, the common concensus today is that this reduces what you can see outside the vehicle, Like the two way mirror trick, it only works if there is light on your side of the glass, (or the other side, if you're playing the cop). Chris "Chris" Babbie Location Sound MON AZ Delete key training and post trimming done by appointment. Rates negotiable, will trade for typing lessons/ADD treatment... ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <275.55c1614.311b9952 [at] aol.com> Date: Wed, 8 Feb 2006 13:58:26 EST Subject: Re: ERS Optics In a message dated 08/02/06 14:23:34 GMT Standard Time, pschreiner [at] rmwc.edu writes: > > > The purpose of the reflector is to get as much of the light > > as possible directed at the gate. > > Hence placing the gate at or very near the F2 point of the reflector. For 'at the gate' read 'into the lens through the gate'. Since the lens is usually smaller than the gate, the output from the reflector should ideally be a converging conical beam, of such diameter that it evenly covers the gate and the lens. Since lens positions are variable, there will be some compromise here. Many ellipsoidals have an adjustment which moves the bulb relative to the reflector, to set the best compromise, if you have time. If the F2 image is anywhere near the gate, the front lens will project this virtual filament, giving an effect called striation. > > > Any light off the reflector > > will be somewhat converging, the light directly off the > > filament will be diverging. Some of the direct light is lost > > - as it does not hit the gate. Precious little. All the ellipsoidals I have seen have a very substantial wrap-round, coming almost to the gate. Also, the modern reflectoris seldom a pure ellipsoid, which is why a modern 575W lantern will often out-perform an older 1KW one. > > > > The gate, iris, shutters and pattern are all placed as close > > to the lamp as possible, to minimize light loss - which means > > that they cannot be any closer than the front of the reflector. > > That doesn't quite make sense to me. If what you're saying is true, > then the S4 would be about six inches shorter than it is now, and the > shutters would be a lot closer to the lamp base. Nor to me. A quick bit of mental arithmetic suggests that the F2 point is some 2' forward of the lens, for a typical but imaginary lantern. Frank Wood ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <2d6.280e69b.311b9bf6 [at] aol.com> Date: Wed, 8 Feb 2006 14:09:42 EST Subject: Re: Boom In a message dated 08/02/06 16:45:33 GMT Standard Time, barney [at] JosephCHansen.com writes: > Yes, about a year ago, a car with acetylene tanks in the trunk blew up > near my house... I was six blacks away and it woke me up. My PT at the > gym lived 10-12 blocks the other way from the blast and said she heard it. Well, in early December, the Buncefield oil depot went up, at 0600 one Sunday morning. I live some 30 or 40 miles away, and that woke me. News stories suggest that it was heard in France and in Holland. It wrecked the whole neighbourhood. Frank Wood ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <2cd.2fd6a96.311b9f22 [at] aol.com> Date: Wed, 8 Feb 2006 14:23:14 EST Subject: Re: ERS Optics In a message dated 08/02/06 18:14:13 GMT Standard Time, pschreiner [at] rmwc.edu writes: > Wouldn't the type of lens used here become an issue? It was always my > understanding in physics that a plano-convex lens would refract the beam > as you describe, but a fully-convex lens would have a second focal point > on the other side and then therefore refract the beam through that point > (which I've referred to previously as F3). Or does this not matter? No. There are two basic types of lens, converging and diverging. Convex and concave. All convex lenses behave in the same way. Frank Wood ------------------------------ Message-ID: Date: Wed, 8 Feb 2006 14:31:01 -0500 From: Matthew Jordan Subject: excess-flow check valves in scenery SGkgYWxsLiAgSSd2ZSBiZWVuIGZvbGxvd2luZyB0aGUgbGlzdCBmb3IgYSB3aGlsZSwgYnV0IHRo aXMgaXMgbXkKZmlyc3QgcG9zdCwgc28gZG9uJ3QgYmUgdG9vIGhhcmQgb24gbWUuIDxncmluPiAg VGhhdCBiZWluZyBzYWlkLi4uCgpIYXMgYW55Ym9keSBoYWQgYW55IHN1Y2VzcyB3aXRoIHVzaW5n IGV4Y2Vzcy1mbG93IGNoZWNrIHZhbHZlcyAoYWthCmFpci1mdXNlcykgaW4gcG5ldW1hdGljIGVx dWlwZWQgc2NlbmVyeT8KCkkgYW0gY3VycmVudGx5IGRlc2lnbmluZyBhIHNpbXBsZSBhaXIgbGlm dCBjYXN0ZXIgc3lzdGVtIHRvIGZpdCBpbiBhCnJlbGF0aXZlbHkgbGFyZ2Ugc2NlbmljIHVuaXQu ICBJdCBzZWVtcyB0byBtZSB0aGF0IHBsYWNpbmcgYWlyLWZ1c2VzCm9uIHRoZSBpbmRpdmlkdWFs IGxpbmVzIHRvIHRoZSBjeWxpbmRlcnMgd2lsbCBrZWVwIHRyb3VibGVzIGluIG9uZQpsaW5lIGZy b20gYWZmZWN0aW5nIHRoZSBlbnRpcmUgc3lzdGVtICgmIHdpbGwga2VlcCB0aGUgc3lzdGVtIGZy b20Kc3Bld2luZyBhaXIgaWYgYSBsaW5lIHJ1cHR1cmVzLikgICBUaGUgcHJvYmxlbSBzZWVtcyB0 byBiZSBmaW5kaW5nIGFuCmFpci1mdXNlIHRoYXQgYSkgaXMgc2l6ZWQgYXBwcm9wcmlhdGVseSAo YWN0aXZhdGVzIH4zc2NmbSBAMTAwcHNpZykKYW5kIGIpIGRvZXNuJ3QgaGF2ZSBhIGJsZWVkZXIg aG9sZS4gIEFuIGFkanVzdGFibGUgYWlyLWZ1c2Ugd291bGQgYmUKZ3JlYXQsIGlmIGl0IGNvdWxk IGRpYWwgZG93biBsb3cgZW5vdWdoLgoKU28sIHRoZSBxdWVzdGlvbnMgYXJlOgpJcyB0aGlzIGFs bCBqdXN0IGEgbG9hZCBvZiBob2d3YXNoPyBJZiBub3SFCkhhcyBhbnlib2R5IGhhZCBhbnkgc3Vj Y2Vzc2VzL2ZhaWx1cmVzIHVzaW5nIHRoaXMgdHlwZSBvZiB2YWx2ZSBpbgpzY2VuZXJ5PyAgSG93 IHNvPwpJZiB0aGlzIGlzIGZlYXNpYmxlOyBjb3VsZCBzb21lb25lIHBvaW50IG1lIHRvIGEgc3Vw cGxpZXIvbWFudWZhY3R1cmVyCm9mIHNhaWQgdmFsdmVzPwoKLS0KTWF0dGhldyBELiBKb3JkYW4K R3JhZHVhdGUgU3R1ZGVudApQVFRQIC0gVW5pdmVyc2l0eSBvZiBEZWxhd2FyZQoKd3d3LnRtcHJv amVjdC5jb20K ------------------------------ Subject: RE: excess-flow check valves in scenery Date: Wed, 8 Feb 2006 14:40:30 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A042A9B30 [at] exchange.rmwc.edu> From: "Paul Schreiner" > Hi all. I've been following the list for a while, but this=20 > is my first post, so don't be too hard on me. =20 Newbie's buying the next round! Woot! :) ------------------------------ Message-ID: <43EA4D20.8070403 [at] fredonia.edu> Date: Wed, 08 Feb 2006 14:57:20 -0500 From: "Stephen E. Rees" Reply-To: Rees [at] fredonia.edu Subject: Re: Clear Horses or Unicorns References: Would that such were the case. The 8' rule applies. Black Box, in the round. I do like the concept of penguins in the role however. :) Steve Matthew Breton wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > >> About 1.5 - 2" tall and 2-3" long would be ideal. > > > Doesn't the thirty-foot rule apply here? At this small sizre, the > audience may not be able to tell whether they have horns, or even if > you've used penguins instead of unicorns. > > > Matthew Breton > Technical Director > Cambridge Family YMCA Theater > (617) 447-5261 (cell) > www.cambymca.org > > _________________________________________________________________ > On the road to retirement? Check out MSN Life Events for advice on how > to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement ------------------------------ From: MissWisc [at] aol.com Message-ID: <1fb.19c024cc.311babf5 [at] aol.com> Date: Wed, 8 Feb 2006 15:17:57 EST Subject: Re: Life of a Counter-weight system OK here's the other part of that question... How do you determine who is competent/trained to inspect a counterweight system? I know Peter and Unkle Bill, but there must be others out there. Simply advertising that you can do it isn't enough IMHO. I want to know that the person doing it REALLY knows what to look for and is willing to climb to the grid, dig around in the fly pit and truly examine all aspects of the system for EVERY lineset. Would the ESTA certification be a good starting point? (And yes, I know that's not why the test was created.) And on another point... there has been talk about having a "log" of how the system gets used but I've not seen specfics of what should be on such a thing. I'd guess which lineset gets moved how many times but would you also track the distance of the movement? Amount of weight on the lineset? operator? length of time the lineset is in X position? Do you have to log it if you make an adjustment to trim? Is anyone doing this? Kristi ------------------------------ Message-Id: In-Reply-To: References:

Date: Wed, 8 Feb 2006 15:19:33 -0500 From: "richard j. archer" Subject: Re: Clear Horses or Unicorns Steve, If you can't find them look for candy molds then cast your own with clear acrylic. These will be the size you want. Molds are pretty cheap. My daughter did some carousel horses for a cake last year ( not clear cast) for 4H. The molds seem to hold up for a few shots. Dick A TD Cornell U ------------------------------ Message-Id: <3.0.6.32.20060208132559.00d2b860 [at] pop.west.cox.net> Date: Wed, 08 Feb 2006 13:25:59 From: CB Subject: RE: Job titles >It's all moot, though, since I know you're an honorable man and will do >what's right, merely because it's the ethical thing to do. Fooled anotehr one! Actually, when asked if I was actually going to make the t-shirts, I did instruct the person suggesting that they be made that he contact you for permissions. Perhaps a nice new black Beefy-T with your remarks and maybe your initials or sig or something in exchange for the ability to reproduce... The copyright exists, but even the US Copyright ofice is of teh opinion that you have to register to be able to collect damages as a result of a lawsuit. ------------------------------ Subject: RE: Clear Horses or Unicorns Date: Wed, 8 Feb 2006 15:33:29 -0500 Message-ID: From: "Michael Diederich" >>> The usual suspects don't seem to have them. About 1.5=20 - 2" tall and 2-3" long would be ideal. Googling has been unsuccessful=20 so far.<<< I found this site with clear casting options using their product. If you = could find plastic toy that resembles the sizes you need you could cast = that and use this resin method. Here is some general info on this = specific resin compound: The resultant room temperature (72 degrees F) cured polyester system has = these properties: Specific Gravity: 1.11 Maximum Casting Thickness: =BD to =BE" Viscosity: 300 cps Hardness (Durometer): 85 D or 40 Barcol Tensile Strength: 10,000 psi Elongation: 10% Shrinkage: 2% linear Styrene Content: 45-50% Maximum Use Temperature: 125=B0F EP4101 is available in the following sizes: Quart Kit (2-1/4 lb) =3D $18 + shipping Gallon Kit (9 lb) =3D $37 + shipping The site: http://www.eagerplastics.com/4101howto.htm=20 HTH and good luck Mike Diederich MVCC Utica, NY ------------------------------ Message-ID: Date: Wed, 8 Feb 2006 15:33:53 -0500 From: Ken Romaine Subject: Re: CT In-Reply-To: References: Keith: With all due respect to the one and onlyh Dr. Doom, this was a VERY Doom-like response. -- Ken Romaine Business Development Manager Barco Media & Entertainment The opinions expressed here are mine - all mine - no matter how much I want to impose them on the rest of the world. On 2/7/06, IAEG [at] aol.com wrote: > In a message dated 2/7/06 9:42:29 PM, dale [at] cybercom.net writes: > > << Be prepared for really strict fire code, especially near > Hartford. that's was where one of the really big circus > tent fires were back many years ago. Hundreds of people > killed. > > --Dale >> > > Ringling, , Hartford, , , 1944 very well documented, , , > > > > very best, > > Keith Arsenault > President > IAEG - International Arts & Entertainment Group > Tampa, Florida ------------------------------ Message-Id: <3.0.6.32.20060208133330.00d2b860 [at] pop.west.cox.net> Date: Wed, 08 Feb 2006 13:33:30 From: CB Subject: RE: AHJ and fire >I understand they do this at the Eisemann Center, near Dallas. This may be the result of the Eismann Center being owned and operated by the city of Richardson (if memory serves). It may have more to do with city fathers there looking for an inexpensive training facility for their fire and safety folk than it does with the safety and well-being of their theatre staff. I know of at least one that was 'let go' because she married another employee. It wouldn't have been so bad except that they indicated to her that it wouldn't be an issue before she got married, and let her go after the wedding. She was probably the best employee (from my perspective) in the building. Granted, I'm looking at it from a touring engineer's point of view, and I didn't meet all of them, but I was impressed. I have her resume if anyone is interested. Chris "Chris" Babbie Location Sound MON AZ Delete key training and post trimming done by appointment. Rates negotiable, will trade for typing lessons/ADD treatment... ------------------------------ Message-Id: <3.0.6.32.20060208133641.00d2b860 [at] pop.west.cox.net> Date: Wed, 08 Feb 2006 13:36:41 From: CB Subject: Clear Horses or Unicorns >The director of Glass Menagerie does not now wish to use the glass >unicorns that were made especially for the production. Rather, she >wants to use small clear plastic horses instead. Why plastic instead of glass? Councha just smack they lil' horns off? Chris "Chris" Babbie Location Sound MON AZ Delete key training and post trimming done by appointment. Rates negotiable, will trade for typing lessons/ADD treatment... ------------------------------ Reply-To: From: "Peter Scheu" Subject: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) Date: Wed, 8 Feb 2006 15:46:38 -0500 Organization: Scheu Consulting Services, Inc. Message-ID: In-reply-to: MissWisc [at] aol.com wrote: >How do you determine who is competent/trained to inspect a =20 >counterweight system? And >And on another point... there has been talk about having a =20 >"log" of how the system gets used but I've not seen specfics of what = should be =20 >on such a thing. What great questions, Kristi! You're right in noting that the ETCP Certification alone doesn't qualify anyone to do anything. But it is one piece of evidence that someone has quantifiable experience and knowledge about the subject matter. But, in combination with reputation (get references), documented = experience, work/project background, training, memberships in trade associations, = and the proper I N S U R A N C E (i.e. E&O, workers comp, etc), you should = be able to separate the wheat from the chaff. If I were considering an inspection, I would get 3 "bids", along with a list of previous clients = with contact info, and an example of what the report will look like (an = actual report, even if they have to black out the venue name, like a CIA = document). In the contract, ask for a Certificate of Insurance listing you as an additional insured. The log need not reflect every time a lineset was operated, but it = should contain the dates of when the system was installed, inspected, parts replaced, and every time it was modified in some way (even if restored). Include names of supervisors and/or companies doing the inspections = and/or repairs, as well as descriptions of the work done. Unca Bill - anything else you'd like to see in a log? Peter Scheu Scheu Consulting Services, Inc. www.scheuconsulting.com Tel: 315.422.9984 fax: 413.513.4966 ------------------------------ Message-ID: <019e01c62cf4$09156fc0$d1504898 [at] GLOBAL.SCJ.LOC> From: "Randy B." Subject: Fw: Colored Lamps for Music stand lights Date: Wed, 8 Feb 2006 15:10:05 -0600 I am looking for colored lamps that would fit the fixtures used in music stands. Would need to 110Vac in the 25 - 40 watt range Blue or Red in color, tubular style. Can some point me in the right Direction Randy ------------------------------ Message-ID: <01a501c62cf4$1959dd80$d1504898 [at] GLOBAL.SCJ.LOC> From: "Randy B." Subject: Conversion of Gell numnber Date: Wed, 8 Feb 2006 15:10:33 -0600 Could someone point me to an on-line resource that will list equivalent gels based on manufacturer number. To be specific we have some glees that our lighting designer spec'ed with Rosco numbers but our stock gels are from Lee. thanks Randy ------------------------------ Subject: RE: Conversion of Gell numnber Date: Wed, 8 Feb 2006 16:20:28 -0500 Message-ID: From: "Paul Sanow" > Could someone point me to an on-line resource that will list=20 > equivalent gels based on manufacturer number. To be=20 > specific we have some glees that our lighting designer=20 > spec'ed with Rosco numbers but our stock gels are from Lee. http://www.leefiltersusa.com/PDFs/Lighting/LightPdfIndex.html# or http://tinyurl.com/87vm3 Select "Color Comparator" near the bottom for a pdf file. Paul *********************************************************** Paul Sanow psanow [at] vls.com Technical Sales www.vincentlighting.com Vincent Lighting Systems 1420 Jamike Ln. #2 Erlanger, KY 41018 (859) 525-2000 x211 FAX (859) 525-2050 *********************************************************** ------------------------------ Subject: RE: Conversion of Gell (sic) numnber Date: Wed, 8 Feb 2006 16:21:13 -0500 Message-ID: <6E497ADB607656479C24E6D7BF6B505A042A9B31 [at] exchange.rmwc.edu> From: "Paul Schreiner" > Could someone point me to an on-line resource that will list=20 > equivalent gels based on manufacturer number. To be=20 > specific we have some glees that our lighting designer=20 > spec'ed with Rosco numbers but our stock gels are from Lee. One person's attempt at approximate conversions can be found at http://tinyurl.com/7jwjq. I have no connection with the site, nor have I played too much with it, so I can't vouch for the accuracy... ------------------------------ Message-ID: <90d9c9980602081407u1572cbe7s616aa67a57b6216d [at] mail.gmail.com> Date: Wed, 8 Feb 2006 17:07:14 -0500 From: Scott Parker Cc: peter [at] scheuconsulting.com Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) In-Reply-To: References:

We're instituting a use log of sorts. Separate from the maintenance/inspection log. Our use log will be tracking, in big round numbers, how often each line set is used. Info will include how much weight for each line set for each show, etc.... Some of our sets are used only for storage and others are used often for very light stuff. A select few get repeated heavy scenery loads. I'm looking to track which sets need/receive more attention. -- Take care, Scott =09Scott C. Parker =09Professor/Technical Director =09Dept. of Performing Arts =09Dyson College of Arts and Sciences [at] Pace University =09Office/shipping: 41 Park Row, 1205F =09Mailing: 1 Pace Plaza =09New York, NY 10038 =09212-346-1423 Fax: 914-989-8425 ------------------------------ Message-ID: <00a301c62cfe$449cf450$6401a8c0 [at] amd2200> From: "Idaho Scenic and Rigging" References: Subject: Re: Job titles Date: Wed, 8 Feb 2006 15:23:20 -0700 >>"I don't know everything, but I'm the world's leading expert on the way I want things done." So, if I paraphrase and correct grammar and send Jeff a free one, I am in the clear. Hey though, hmmm... an autographed "list edition" limited first run. What say Jeff? Scan your autograph and send it to me off list? Robert Riddle Will Disagree for the Sake of Discussion Will Discuss for the Sake of Learning > > >It's all moot, though, since I know you're an honorable man and will do > >what's right, merely because it's the ethical thing to do. > > Fooled anotehr one! Actually, when asked if I was actually going to make > the t-shirts, I did instruct the person suggesting that they be made that > he contact you for permissions. Perhaps a nice new black Beefy-T with your > remarks and maybe your initials or sig or something in exchange for the > ability to reproduce... > The copyright exists, but even the US Copyright ofice is of teh opinion > that you have to register to be able to collect damages as a result of a > lawsuit. ------------------------------ Message-ID: Date: Wed, 8 Feb 2006 17:26:22 -0500 From: Matthew Jordan Subject: Re: excess-flow check valves in scenery In-Reply-To: References: > Newbie's buying the next round! Woot! :) Eee gads! I guess I may have to take out that loan after all.... -- Matthew D. Jordan Graduate Student PTTP - University of Delaware www.tmproject.com ------------------------------ From: FrankWood95 [at] aol.com Message-ID: <232.68856f9.311bd24c [at] aol.com> Date: Wed, 8 Feb 2006 18:01:32 EST Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) In a message dated 08/02/06 20:47:15 GMT Standard Time, peter [at] scheuconsulting.com writes: > The log need not reflect every time a lineset was operated, but it should > contain the dates of when the system was installed, inspected, parts > replaced, and every time it was modified in some way (even if restored). > Include names of supervisors and/or companies doing the inspections and/or > repairs, as well as descriptions of the work done. You brought to mind another side of the question: your own insurance. The underwriters have a reasonable expectation that the equipment, of any sort, that you are using is safe. I hear a concerted groan here, as insurers are the most notorious nit-pickers and evaders of responsibility around. But they do set standards. If they say they want a thorough annual inspection, they are likely either to appoint their own inspector, or to suggest an outfit to do the work to their satisfaction. Frank Wood ------------------------------ From: "ladesigners [at] juno.com" Date: Wed, 8 Feb 2006 23:11:10 GMT Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) Message-Id: <20060208.151129.16359.72754 [at] webmail30.lax.untd.com> There are some well qualified and experienced inspectors on this listser= ve. One VERY safe choice signs his dispatches with "Zat help?" A word to= the wise is sufficient. Always look for E&O and Workman's Comp insuranc= e from a major carrier as well as a history of accurate, responsive, and= well written answers to questions posed on this list. /s/ Richard ------------------------------ Message-ID: In-Reply-To: From: "Thomas Schraeder" Subject: Re: Conversion of Gell numnber Date: Wed, 08 Feb 2006 18:28:13 -0500 Go to: http://www.leefiltersusa.com/PDFs/Lighting/LightPdfIndex.html# and choose the color comparator. It lists Rosco colors and recommends Lee equivalents. I highly recommend you check this with the designer - close ain't always acceptable. Tom Schraeder Lighting Design Wayne State University Theatre 4841 Cass Ave., Suite 3225 Detroit, MI 48202 313-577-7908 - office 313-577-0935 - fax >From: "Paul Sanow" >Reply-To: "Stagecraft" >To: "Stagecraft" >Subject: Re: Conversion of Gell numnber >Date: Wed, 8 Feb 2006 16:20:28 -0500 > >For info, archives & UNSUBSCRIBE, see >--------------------------------------------------- > > > Could someone point me to an on-line resource that will list > > equivalent gels based on manufacturer number. To be > > specific we have some glees that our lighting designer > > spec'ed with Rosco numbers but our stock gels are from Lee. >http://www.leefiltersusa.com/PDFs/Lighting/LightPdfIndex.html# > >or http://tinyurl.com/87vm3 > >Select "Color Comparator" near the bottom for a pdf file. > > >Paul > >*********************************************************** >Paul Sanow psanow [at] vls.com >Technical Sales www.vincentlighting.com >Vincent Lighting Systems > > >1420 Jamike Ln. #2 >Erlanger, KY 41018 > >(859) 525-2000 x211 FAX (859) 525-2050 >*********************************************************** ------------------------------ From: "ladesigners [at] juno.com" Date: Wed, 8 Feb 2006 23:33:05 GMT Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) Message-Id: <20060208.153357.16359.72814 [at] webmail30.lax.untd.com> And if you want a comprehensive post-Mortem inspection, followed by stra= ightforward court testimony that Jurors can and will base their verdicts= upon when allocating fault after rigging equipment failure, Dr. Randall= Davidson is your best choice. His court demeanor is great. /s/ Richard = _________________________ There are some well qualified and experienced inspectors on this listser= ve. One VERY safe choice signs his dispatches with "Zat help?" A word to= the wise is sufficient. Always look for E&O and Workman's Comp insuranc= e from a major carrier as well as a history of accurate, responsive, and= well written answers to questions posed on this list. /s/ Richard ------------------------------ Date: Wed, 08 Feb 2006 19:07:10 -0500 Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) From: Bill Sapsis Message-ID: In-Reply-To: On 2/8/06 3:46 PM, "Peter Scheu" wrote: > What great questions, Kristi! > > You're right in noting that the ETCP Certification alone doesn't qualify > anyone to do anything. But it is one piece of evidence that someone has > quantifiable experience and knowledge about the subject matter. > > But, in combination with reputation (get references), documented experience, > work/project background, training, memberships in trade associations, and > the proper I N S U R A N C E (i.e. E&O, workers comp, etc), you should be > able to separate the wheat from the chaff. If I were considering an > inspection, I would get 3 "bids", along with a list of previous clients with > contact info, and an example of what the report will look like (an actual > report, even if they have to black out the venue name, like a CIA document). > In the contract, ask for a Certificate of Insurance listing you as an > additional insured. > > The log need not reflect every time a lineset was operated, but it should > contain the dates of when the system was installed, inspected, parts > replaced, and every time it was modified in some way (even if restored). > Include names of supervisors and/or companies doing the inspections and/or > repairs, as well as descriptions of the work done. > > Unca Bill - anything else you'd like to see in a log? > > Peter Scheu Kristi & Peter. As there is no national criteria for stage inspections, it can be difficult. References may be difficult to come by as some facilities are not willing to discuss inspections with outsiders. Especially those administrators who keep their heads buried in the sand. And, as you said, experience is really the key. How many inspections have they really done and how long have they been doing them? And in what type of facilities? No offense to the high schools of the world, but they tend to look pretty much the same. If your potential inspector has done nothing but high schools then their level of experience is pretty shallow. As to the report. I will never ever release an actual report without the written consent of the owner of that report. I won't even send out a real report with the names blacked out. If someone wants to see what our reports look like then we have a dummy one that looks like the real thing but doesn't relate to any known facility. Now, if I see a life threatening situation and the owner refuses to do anything about it, then I may take the matter to a higher authority, but I will not release the report. The log book should be an incident report book. Whenever anything wrong happens to the system it should be reported. Crashing an arbor. Overloading a pipe. Shock loading a set. Even those times when you are simply loaded to the max should get written up. Doing a production of Peter Pan and using your rigging instead of a flying company. Write it up. Anything, and I do mean anything out of the normal. Zat help? Thanks Bill S. www.sapsis-rigging.com 800.727.7471 800.292.3851 fax 267.278.4561 mobile Join the Long Reach Long Riders on their 3rd annual cross country charity motorcycle ride. ------------------------------ Date: Wed, 08 Feb 2006 19:14:47 -0500 Subject: Re: Life of a counter-weight system... From: Bill Sapsis Message-ID: In-Reply-To: Aw, gosh..shucks, (he said blushing and shuffling his feet.) Thanks for the vote of confidence. To tell the truth, I'm not the only one here doing this work. It takes a group effort to put together a truly complete safety program and I have an excellent staff here, most of whom have been with me for at least 10 years. Bill S. www.sapsis-rigging.com 800.727.7471 800.292.3851 fax 267.278.4561 mobile Join the Long Reach Long Riders on their 3rd annual cross country charity motorcycle ride. On 2/8/06 11:02 AM, "Stephen Litterst" wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > Paul Schreiner wrote: > >> --------------------------------------------------- > >> Hey, Unka Bill, what's yer phone number again? :) > > (800)SAPSIS-1 > That's (800)727-7471 > > on teh intarweb at www.sapsis-rigging.com > > Steve L. > (Not an SRI employee, just a long-time fan and occasional customer) > ------------------------------ In-Reply-To: References: Message-Id: <299404B4-7A74-4B71-9157-4A79D78C8C76 [at] dejazzd.com> From: Greg Bierly Subject: Re: Colored Lamps for Music stand lights Date: Wed, 8 Feb 2006 19:21:56 -0500 I have found many music stand lights will accept a small standard lamp. A few of the older units I have do need the tubular style. I have not found a source for a colored tubular style but have seen many colored lamps in the 25-40w range. If you must have a tubular lamp you may find it easier and cheaper to dip your own or at 25w stick with the "gel" method. Greg Bierly Technical Director Hempfield HS ------------------------------ From: "The Elliott Family" Subject: RE: Conversion of Gell numnber Date: Wed, 8 Feb 2006 16:39:32 -0800 Message-ID: <000701c62d11$4b1c7d10$0200a8c0 [at] cornbread> In-Reply-To: Randy, My virtual host is down, so I can't upload an Excel file I have created that covers Rosco, Lee, and GAM. If you would be interested in this, reply directly to my email address (jelliott [at] peak.org) and I'll send you the file. --John Elliott Albany Civic Theater Oregon --------------------------------------------------------------------- Eliminate annoying spam! My mailbox is protected by iHateSpam, the #1-rated spam buster. http://www.ihatespam.net -----Original Message----- From: Stagecraft [mailto:stagecraft [at] theatrical.net] On Behalf Of Randy B. Sent: Wednesday, February 08, 2006 1:11 PM To: Stagecraft Subject: Conversion of Gell numnber For info, archives & UNSUBSCRIBE, see --------------------------------------------------- Could someone point me to an on-line resource that will list equivalent gels based on manufacturer number. To be specific we have some glees that our lighting designer spec'ed with Rosco numbers but our stock gels are from Lee. thanks Randy ------------------------------ Date: Wed, 08 Feb 2006 19:44:40 -0500 Subject: Re: Life of a counter-weight system... From: Bill Sapsis Message-ID: In-Reply-To: On 2/8/06 10:57 AM, "Paul Schreiner" wrote: > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > >> Does a wire-guided, counter-weight system have a life span? >> Should it be replaced in 10 years? 20 years? 30 years? Is a >> system installed in the early 1970s still safe? > > Depends. Does it get regular exercise? What's the family history? Any > tobacco use? > > Seriously, though, the general answer is...maybe. Depends on a lot of > factors, including history of use, inspections, the quality of the > original installation, and so forth. Some components that are fairly > replaceable wear out faster than others. You'd need a qualified, > outside individual to do a thorough inspection before any sort of > determination could be made. > > I've worked with systems built around that time that were still rock > solid. I've seen newer ones that had half the linesets out of order. > > Hey, Unka Bill, what's yer phone number again? :) The early 70's were a pivotal time for stage rigging. We were finally getting away from fiber core wire rope and loft blocks with bushings instead of bearings. But wire rope clips were still being put on backward and they were, for the most part, malleable. Jaw & Hook turnbuckles were pretty common. You might even have had an asbestos fire curtain installed. And the height of the system was also changing. Prior to this I've seen wire guided systems that were 70' tall. Pretty scary stuff. Manufacturers began to insist that wire guides be no taller than 35'. But what happened in your theatre in the early 70's would really depend on the architect, consultant and installer. You could have a system with modern technology or you could have a dinosaur. And that brings us back to that inspection thing again. Bill S. www.sapsis-rigging.com 800.727.7471 800.292.3851 fax 267.278.4561 mobile Join the Long Reach Long Riders on their 3rd annual cross country charity motorcycle ride. ------------------------------ Message-ID: From: "Laura McMeley" Subject: RE: AHJ and fire Date: Wed, 8 Feb 2006 19:08:43 -0600 Message-ID: <001701c62d15$5f0f7710$6600a8c0 [at] tdolighting01> In-Reply-To: Actually, she's the person who told me about the fire department thing, as she's currently my assistant at the opera. I second your opinion of her by the way and will be very sorry to loose her when she finds a better position. Laura McMeley Resident Lighting Coordinator The Dallas Opera 972-333-5016 > -----Original Message----- > From: Stagecraft [mailto:stagecraft [at] theatrical.net] On Behalf Of CB > Sent: Wednesday, February 08, 2006 1:34 PM > To: Stagecraft > Subject: Re: AHJ and fire > > For info, archives & UNSUBSCRIBE, see > --------------------------------------------------- > > >I understand they do this at the Eisemann Center, near Dallas. > > This may be the result of the Eismann Center being owned and operated by > the city of Richardson (if memory serves). It may have more to do with > city fathers there looking for an inexpensive training facility for their > fire and safety folk than it does with the safety and well-being of their > theatre staff. I know of at least one that was 'let go' because she > married another employee. It wouldn't have been so bad except that they > indicated to her that it wouldn't be an issue before she got married, and > let her go after the wedding. She was probably the best employee (from my > perspective) in the building. Granted, I'm looking at it from a touring > engineer's point of view, and I didn't meet all of them, but I was > impressed. > I have her resume if anyone is interested. > Chris "Chris" Babbie > Location Sound > MON AZ > > Delete key training and post trimming done by appointment. Rates > negotiable, will trade for typing lessons/ADD treatment... ------------------------------ In-Reply-To: References: Message-Id: <858B753C-C75C-4C8A-9599-3BA606977ACC [at] hillmardesign.com> From: gregg hillmar Subject: Re: Colored Lamps for Music stand lights Date: Wed, 8 Feb 2006 21:15:29 -0500 Find some Lamp Dip and make your own from existing lamps. g. _____________________ gregg hillmar scenic & lighting design portfolio & life as we know it: http://www.hillmardesign.com "Work like you don't need the money. Love like you've never been hurt. Dance like no one's watching." Satchel Paige On Feb 8, 2006, at 4:10 PM, Randy B. wrote: > For info, archives & UNSUBSCRIBE, see stagecraft.theprices.net/> > --------------------------------------------------- > > > I am looking for colored lamps that would fit the fixtures used in > music > stands. Would need to 110Vac in the 25 - 40 watt range Blue or > Red in > color, tubular style. Can some point me in the right Direction > > Randy > ------------------------------ Message-ID: <43EABAE6.5080203 [at] dreampossible.ca> Date: Wed, 08 Feb 2006 22:45:42 -0500 From: Jim Hyslop Organization: Dreampossible Inc. Subject: Re: Boom References:

In-Reply-To: Jerry Durand wrote: > So, did these guys win the Darwin award, or do we have to worry about > them reproducing? Be worried. Be very worried. They survived. -- Jim Hyslop ------------------------------ From: MissWisc [at] aol.com Message-ID: <1c3.39c97aeb.311c1b5f [at] aol.com> Date: Wed, 8 Feb 2006 23:13:19 EST Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) I'm well acquainted with both of those gentlemen... but what do I do when Joe Blow Local hardware guy tells my administrator that he can do it... how do I say "NO, I want to fly Unkle Bill or one of his team in to do it." As for Randy Davidson... I pray every day that I'll never need to see that court demeanor in person. I doubt his knowledge will ever be duplicated. Kristi In a message dated 2/8/2006 5:35:59 PM Central Standard Time, ladesigners [at] juno.com writes: And if you want a comprehensive post-Mortem inspection, followed by straightforward court testimony that Jurors can and will base their verdicts upon when allocating fault after rigging equipment failure, Dr. Randall Davidson is your best choice. His court demeanor is great. /s/ Richard _________________________ There are some well qualified and experienced inspectors on this listserve. One VERY safe choice signs his dispatches with "Zat help?" A word to the wise is sufficient. Always look for E&O and Workman's Comp insurance from a major carrier as well as a history of accurate, responsive, and well written answers to questions posed on this list. /s/ Richard ------------------------------ From: "ladesigners [at] juno.com" Date: Thu, 9 Feb 2006 04:45:11 GMT Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) Message-Id: <20060208.204520.12721.74273 [at] webmail37.lax.untd.com> Tell your administrator that you are attempting to cover his/her derrier= e, and reduce the institution's liability. The legal or loss control off= ice of your institution should side with you. It is unlikely that Joe Bl= ow Local hardware guy has enough E&O insurance to cover your institution= in case of a catastrophic rigging failure. /s/ Richard =2E.. what do I do when Joe Blow Local hardware guy tells my administrat= or that he can do it... how do I say "NO, I want to fly Unkle Bill or on= e of his team in to do it." = ------------------------------ Message-ID: Date: Wed, 8 Feb 2006 20:56:17 -0800 From: Mat Goebel Subject: Cirque in San Jose Hey all, Is anyone working on Corteo in San Jose? I'll be catching the 8pm show on Thursday, and I imagine I'll have some questions afterward. Shoot me an email off-list. Thanks for the bandwidth! -- Mat Goebel www.matgoebel.com Mobile: 510.693.1448 ------------------------------ Message-ID: <001d01c62d36$82ea87d0$6401a8c0 [at] amd2200> From: "Idaho Scenic and Rigging" References: Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) Date: Wed, 8 Feb 2006 22:05:56 -0700 Kristi snip >"how do I say NO," snip Uh...well... start by showing that administrator the full text of this email...! ----- Original Message ----- From: To: "Stagecraft" Sent: Wednesday, February 08, 2006 9:13 PM Subject: Re: Qualified Rigging Inspectors & Logs (Was: Life of a Counter-weight system) > --------------------------------------------------- > > I'm well acquainted with both of those gentlemen... but what do I do when > Joe Blow Local hardware guy tells my administrator that he can do it... how do I > say "NO, I want to fly Unkle Bill or one of his team in to do it." > > As for Randy Davidson... I pray every day that I'll never need to see that > court demeanor in person. I doubt his knowledge will ever be duplicated. > > Kristi > > In a message dated 2/8/2006 5:35:59 PM Central Standard Time, > ladesigners [at] juno.com writes: > And if you want a comprehensive post-Mortem inspection, followed by > straightforward court testimony that Jurors can and will base their verdicts upon > when allocating fault after rigging equipment failure, Dr. Randall Davidson is > your best choice. His court demeanor is great. > /s/ Richard > _________________________ > There are some well qualified and experienced inspectors on this listserve. > One VERY safe choice signs his dispatches with "Zat help?" A word to the wise > is sufficient. Always look for E&O and Workman's Comp insurance from a major > carrier as well as a history of accurate, responsive, and well written > answers to questions posed on this list. > /s/ Richard > ------------------------------ Message-ID: <1093.208.51.52.120.1139466158.squirrel [at] webmail.peak.org> In-Reply-To: References:

Date: Wed, 8 Feb 2006 22:22:38 -0800 (PST) Subject: Re: Boom From: "Bill Nelson" > Must have been a really small balloon, a regular sized one with a mix > of acetylene and oxygen in it would have done a LOT more damage. I'm not so sure of that. If you figure out the weight of explosive, it is probably less than a gram. I have a friend that was filling one of the aluminized party balloons with acetylene/oxygen. Just after tying it, he was carrying it outside for ignition when it exploded close to his left ear. He is now almost deaf in that ear, but there was no other damage. Bill ------------------------------ Message-ID: <1164.208.51.52.120.1139470676.squirrel [at] webmail.peak.org> In-Reply-To: References: Date: Wed, 8 Feb 2006 23:37:56 -0800 (PST) Subject: Re: ERS Optics From: "Bill Nelson" > No! One of the ways you can describe/define an ellipsoid (which is what > the reflectors are, since they do tend to be 3-dimensional) is that any > line that passes through one focal point and reflects off the inside of > the ellipsoid will pass through the other focal point. It doesn't > require two bounces to do this. You are right, I misrembered the light paths. But it is unlikely you will get much of an image - as the light source is not all at F1. That is an advantage - since we want a smooth diffuse field of light, not an image. >> Any light off the reflector >> will be somewhat converging, the light directly off the >> filament will be diverging. Some of the direct light is lost >> - as it does not hit the gate. >> >> The gate, iris, shutters and pattern are all placed as close >> to the lamp as possible, to minimize light loss - which means >> that they cannot be any closer than the front of the reflector. > > That doesn't quite make sense to me. If what you're saying is true, > then the S4 would be about six inches shorter than it is now, and the > shutters would be a lot closer to the lamp base. The closer the gate is to the filament, the more direct diverging light is present. Such light can be considered scatter light and will reduce the sharpness of the pattern or shutters. By using roughly 2/3rds to 3/4th of the elliptical solid length, most of the light will be converging on F2. There is another tradeoff - heat. The closer the shutter is to F2, the more the directly heated area is concentrated. Of course, the worst case would be the shutters right at F2. But you want the gate as close to F2 as practical, so as much light as possible passes through the gate. You also want the gate as small as possible, to minimize scatter light. The reflector design is just one part of the many compromises necessary. The more complete the reflector, the larger the gate has to be to capture all the light that passes through F2. If too much reflector is present, then some of the light passing through F2 would be bounced back to F1 - probably not a desireable situation. Too many compromises for me - the designers earn their pay. Bill ------------------------------ Message-ID: From: "Occy" References: Subject: Re: cable drums? Date: Wed, 8 Feb 2006 23:55:59 -0800 Also you might try www.secoa.com too, I worked for them awhile, I installed many of drums. I do buy stuff from Uncle Bill too. Every rigging equipment supplier has most of the same stuff some have different stuff and some have better stuff and some the best stuff. Since I buy stuff from everyone just about, my factors are lead time, quality, price, shipping costs and if they have the stuff. ----- Original Message ----- From: "Bill Sapsis" --------------------------------------------------- > > Ahem. > > You want cable drums for electric wire you go to an electrical guy. > > You want cable drums for wire rope you go to a rigger. > > Why look! I'm a rigger. And we do cable drums. And I'm a list member. > What a happy coincidence. > > Whatcha need? > > Bill S > www.sapsis-rigging.com > 800.727.7471 > 800.292.3851 fax > 267.278.4561 mobile > > Join the Long Reach Long Riders on their 3rd annual cross country charity > motorcycle ride. > > > > > > > On 2/7/06 2:49 PM, "Richard Wolpert" wrote: > > > For info, archives & UNSUBSCRIBE, see > > --------------------------------------------------- > > > > Try www.conductix.com they make all sorts of power equipment AND cord > > reels. > > Go to the bottom of their HOME page and click on Cord Reels. > > > > Richard A.Wolpert > > President > > Union Connector Co., Inc. > > 40 Dale Street > > West Babylon, NY 11704 > > Ph: 631-753-9550 ext. 204 > > Fx: 631-753-9560 > > richw [at] unionconnector.com > > > > -----Original Message----- > > From: Stagecraft [mailto:stagecraft [at] theatrical.net]On Behalf Of Fred > > Schoening, Jr. > > Sent: Tuesday, February 07, 2006 2:25 PM > > To: Stagecraft > > Subject: cable drums? > > > > For info, archives & UNSUBSCRIBE, see > > --------------------------------------------------- > > > > Hiya, Kids! > > > > Who sells grooved drums for aircraft cable winches and > > the like in the US? So far my web searching hasn't come > > up with anything. > > > > Thanks, > > > > Fred > > > > "Big Fred" Schoening > > Technical Director, Dallas Theater Center > > Dallas, Texas, USA > > > > > > > ------------------------------ Message-ID: <1177.208.51.52.120.1139471869.squirrel [at] webmail.peak.org> In-Reply-To: References: Date: Wed, 8 Feb 2006 23:57:49 -0800 (PST) Subject: Re: ERS Optics From: "Bill Nelson" > Okay, while I've expressed my expectation that the gate was beyond F2, I > can understand this. It could be put on either side. You want the lens to focus on the object (gate, shutters or gobo), not on F2. Because the desired image distance varies, the lens has to be adjustable to do this - since we are not projecting to infinite distances. Bill ------------------------------ Message-ID: <011901c62d65$cbf362b0$6501a8c0 [at] ALFOFFICE> Reply-To: "Alf Sauve" From: "Alf Sauve" References:

Subject: Re: Football Fields Date: Thu, 9 Feb 2006 05:29:15 -0500 >While the provided info is a given, heed Dale's advice. Head over to >the field and do your own investigation. Talk to the grounds crew, >facilities, and look for all that "other stuff" that will bite you in >the butt later because you didn't know about it :) And that includes any sprinkler timers. Happened to me. In the middle of load in (load on?) for a field concert the sprinklers came on. Fortunately, they were only 4 on the first zone and we covered them with large moving pads until the local custodian could turn them off. ------------------------------ End of Stagecraft Digest #684 *****************************