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  • plumberscrack
    started a topic What's this called?

    What's this called?

    I found this thing in my basement ceiling when running some pipes. It was in my way so I cut it out like any good plumber would do Some of you old timers might know what its called and it's purpose. My house used to have the "knob and tube" wiring, is it from that era?
    Last edited by plumberscrack; 05-24-2007, 05:36 PM.

  • Woussko
    replied
    Re: What's this called?

    Just some things some of you might like to read up on.

    Xenon Arc Lamps: http://en.wikipedia.org/wiki/Xenon_arc_lamp

    Carbon Arc Lamp - 1: http://en.wikipedia.org/wiki/Arc_lamp

    Carbon Arc Search Lights (Some good fun reading and more links): http://www.geocities.com/bobz299/bmeza6.htm

    More on searchlights - Fixed up into super stock version "The Dominator" : http://www.carbonarcsearchlights.com/

    http://einhornpress.com/searchlight.aspx


    I wish I could find my old pictures of 2 restored STRONG brand carbon arc spotlights. Origionally they were powered by a steam (yes steam) engine driven DC generator rated at (2) loads of 100 Volts and 75 Amp. each. The last they were even tried out was back in the late 70s and with the rods kept closer, they used an engine driven DC arc welder generator. It worked pretty well from what I heard. After that they were painted and never used again. I have no idea what ever happened to them, but the live show theatre (small town) is still there and I bet they still are inside it somewhere in safe keeping. Maybe one of the owners took them home.
    Attached Files
    Last edited by Woussko; 04-26-2007, 06:57 PM.

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  • Woussko
    replied
    Re: What's this called?

    All of you are getting closer and because if Mama Nautre behaves herself Woussko will be taking a few days off from this forum, here is comes. Newman is closest and Skeeter has the right idea with the 15,000 Watt part. What you see is a liquid cooled 15KW Short Arc Xenon gas discharge lamp used in a IMAX movie projector. Anyone handeling this has to wear special armor. If it busts it really goes KaBoom. They demand great respect. I have seen a similar one rated at 10KW used in a search light. When I get a chance I'll look up and post some links to writeups about carbon arc search lights and such. Back when I was quite young, I remember an older movie theatre in my area that actually did have a carbon arc 70 mm projector with huge reels of film. The projection crew (4 guys) had their work cut out. When it was time to change reels (took 2 guys to do it), they would have a 15 minute break. Most of that time was for cool down as the carbon rods had to get changed too. What a difference today!!! I also remember at a large concert hall where they had 3 monster spot lights and they were carbon arc. I can see it now where the OSHA crew walks in and demands power be shut off at once. Those bad boys were "Hell On Earth" but some crazy people just loved them anyway.

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  • JimDon
    replied
    Re: What's this called?

    Pop the glass off that thing, run the voltage through and that would make one kick a$$ welder! LOL
    Jim Don

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  • Sceeter W Wheels
    replied
    Re: What's this called?

    By the looks of it, I'd say it's a 15kW unit. That's just a wild a$$ guess though

    Leave a comment:


  • Newman
    replied
    Re: What's this called?

    It's a xenon short-arc lamp invented in the 1940s in Germany. Used for high power projectors and various other high intensity lighting. In the olden days they used to use crude carbon arc lamps for cinema movie projectors. The concept of the carbon arc dates back to the 1800's.
    Last edited by Newman; 04-25-2007, 11:25 PM.

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  • JimDon
    replied
    Re: What's this called?

    Is it out of an electric co. substation?
    Jim Don

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  • Woussko
    replied
    Re: What's this called?

    No one has it yet. Keyword: Big $$$ as in over one thousand bucks for just one of them. I really wish I had better pictures of it. Maybe I'll find some soon.

    Please go back a few posts as I just added a new "End View" picture. Maybe it will give you some clues.
    Last edited by Woussko; 04-25-2007, 06:40 PM.

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  • DSurette
    replied
    Re: What's this called?

    How about an old x-ray tube?

    Leave a comment:


  • plumberscrack
    replied
    Re: What's this called?

    Lightning Diverter!

    Leave a comment:


  • Woussko
    replied
    Re: What's this called?

    Guys

    You all need to think WILD and big $$$

    I bet form this picture that no one can get this one. I picked something pretty wild, and NO WAY do I own it. I would have no use at all for such. In a few days, I'll let it out and tell you just what it is. I wish that I had more and better pictures of it. This one has the 2 ends cut off.

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  • Sceeter W Wheels
    replied
    Re: What's this called?

    Maybe it's an arrestor for an antenna.

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  • JimDon
    replied
    Re: What's this called?

    Air gap in a glass insulator used with a grounded lightning arrestor system for barns
    Jim Don

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  • Sceeter W Wheels
    replied
    Re: What's this called?

    Spark gap in a vacuum or maybe gas-filled blown-glass bulb. From a technology museum display?

    Leave a comment:


  • Woussko
    replied
    Re: What's this called?

    I think it might be wise to move this thread to other areas based on the item. This one can be for electrical things, but my vacuum cleaners and antique clothes washer, really belong under "Non Tool Related". Maybe we can get Josh to start up a "What Is This" main subject.

    Let's see if anyone can figure out just what this is and also can give some specs on it. Have any of you seen anything like this before? It really is an electrical item.
    Attached Files
    Last edited by Woussko; 04-25-2007, 06:41 PM.

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