Brooke, It's humbling to know that someone on the Internet already has found the answer to something that puzzles me. Worse, I had a feeling of déjà vu as I read your article.
You asked about the Type "A" pendulum in the article. I looked to see if Google had found an answer. It had. The link is: http://www.kensingtonclock.com/kcsadjust.htm Look down near the bottom of the article where a figure shows the three types - A, B, and C. There's a few paragraphs about the striking mechanism, and then all is revealed. Thanks for maintaining a very informative site. Bill Hawkins O.T.P.S. If anyone is trying to play tapes made between 1975 and 1985, and they stick so bad they won't play, look up "baking tapes" before you destroy them. The sticking can be fixed. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brooke Clarke Sent: Sunday, January 31, 2010 4:03 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Self winding clock co. Weatern union clock Hi Corby: The clocks were on a synchronization line in series and the source power supply was 200 VDC. A high power adjustable series resistor was in series to set the loop current. The loop was closed one second prior to top of the hour and opened at the top of the hour. The reason for the high voltage is that the time constant is L/R so the higher the R the faster is the circuit. This is exactly the same as how Teletype machines are able to operate. You can use a bench power supply in constant current mode and just turn up the current until the synchronizer pulls in and not the voltage across it. See: http://www.prc68.com/I/SWCC.shtml http://www.prc68.com/I/SWCC2.shtml Have Fun, Brooke Clarke http://www.PRC68.com Corby Dawson wrote: > Hi, > > I picked up a nice big clock that has "self winding clock co. New York" > and "western union" on the face. > > After some research on the web I connected a 3V battery up and it wound > itself OK. > > Fiddled with the orientation a bit to get the pendulum swing balanced and > it seems to be running OK now. > > How to I advance or retard the hands to set the time? > > Also how do I test the synchronizer? > > I see two Fahnestock clips That look to connect to the synchronizer > solenoid. > > With an appropriate interface can I synchronize it to a GPS 1PPH? > > Thanks, > > Corby Dawson > ____________________________________________________________ > Small Business Tools > Compete with the big boys. Click here to find products to benefit your business. > http://thirdpartyoffers.juno.com/TGL2141/c?cp=rp_3jEZUzZpJUtop_lLe_QAAJ1ABLZ FyqoH-WnHH1GJ345whAAYAAAAAAAAAAAAAAAAAAADNAAAAAAAAAAAAAAAAAAARMQAAAAA= > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
