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    Large Electric School Clock - Project ID Help

    Do you know if the school has or had a IBM or Simplex clock system for the classroom clocks? If so, it is very likely that clock was part of the system. They were included in a lot of schools to dress up the building and to lock up the bidding process. Not many master clock systems had a...
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    Another one bites the dust- Seth Thomas tower clock in Corning, NY destroyed

    It realy isn't that hard. We took one out of a church that had replaced it with electric. The only access we were aloud was a spiral srair case. We disassembled the clock and carried the pieces down. For the pieces to big to carry we tied a rope to them. We looped the rope around a railing...
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    Another one bites the dust- Seth Thomas tower clock in Corning, NY destroyed

    This is insane. Three or 4 people could have dissembled that clock in place and carried the pieces out by hand. Been there, done that.
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    A Clock Past Its Prime

    You might be able to monitor and limit the current to the motor using a light bulb. A common light bulb has very low resistance until "on" this allows you to supply the motor with 120 VAC and not light the bulb. If the motor is overloaded then the bulb will light, it's resistance will...
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    Remote control of a tower clock

    I have a nice old tower clock that I get to service once in a while. Sadly it was converted to run on AC quite a few years ago by gearing a small AC motor to the escape wheel shaft (The "Surplus" parts have been lost) The customer is asking for remote control. This would be easy to do with...
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    Street Clock pictures

    I once leaned out a school window and asked a kid what the dial on the face of the school said. (I was repairing it at the time) He answered in a very low voice "TICK TOCK" Not much help. Frank
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    Info on the Big Ben restoration

    I just receaved this link and am passing it along. http://homepages.tesco.net/chris.mckay/ From Chris McKay Big Ben PAge http://homepages.tesco.net/chris.mckay/bigben.html Frank DeWitt
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    Mecca clock tower

    I would guess 4 servo motors with encoder feedback like you would see on a CNC machine. all run from a rather boring PLC or PC. I bet there is some serious analyses work going in to those hands and wind loading I would be looking at having the ends of them run in a track. It will be fun to...
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    Jump Minute Tower Clock?

    I had the wrong link there. Try this these They were transmitted by wire but went as far as Boston Mass! These were not minute jumpers but were slave dials syncronised less often then each minute...
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    Jump Minute Tower Clock?

    I did a bit of research and found that minute jumpers including large minute jumpers have been around a long time. Greenwich started transmitting time electrically in 1852 http://clockhistory.com/setclocks/tower_clocks/index.html Standard electric time was installing minute jumper tower clocks...
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    Jump Minute Tower Clock?

    I worked on a IBM minute jumper on the front of a school building I had it working and was ready to set it. It had a small telltale dial for the minutes but non for the hours. It was a long way down and out to the sidewalk so I went to a nearby window and called down. "What does the clock say"...
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    Behind the dial works repair.

    I am working on a old E Howard tower clock. One behind the dial works is "Stuck" seized between the main shaft and the hour shaft. (If I remove the intermediate gear, the two shafts turn freely as one in the housing.) Any ideas on what I will find when I remove it? Is this common? Does any...
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    Big Ben Silenced for Big Makeover.

    The web says that foreign visitors can no longer visit the clock when parliament is in session so do a lot of checking before you go. I have visited a few tower clocks and repaired a few. That one is the only clean one I know of. One had a nice little "house" around the movement with windows...
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    Big Ben Silenced for Big Makeover.

    I wandered around the web for a bit and found some inside pictures. Anyone had the tour? I have not. <http://www.bbc.co.uk/london/content/image_galleries/bigben_clock_gallery.shtml?3> <http://news.bbc.co.uk/2/shared/spl/hi/pop_ups/07/in_pictures_the_great_westminster_clock/html/8.stm> Frank

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