November 02, 2010, 20:23
Michael Riskapnuematic clock co.
Does anyone know anything about the pnuematic clock co. How does a clock work on pressure (vacuum)?
November 02, 2010, 21:52
Tom BrownI don't know anything about them but there are several patents on file for them, you can check them out here;
http://www.google.com/patents?...=10&spell=1&oi=spellAlso there are articles about a Pneumatic Clock Company out of Paris France.
http://books.google.com/books?...ck%20company&f=falseNovember 02, 2010, 21:59
Tom BrownJust realized yours says HAHL Clock Company Chicago, here is a patent for possibly your clock
http://www.google.com/patents?...HAHL%20clock&f=falseNovember 02, 2010, 23:39
Michael RiskaThanks Tom! I think I'll leave this one in the junk shop where I found it, until the city decides to run some Paris like underground air lines. My compressor leaks so badly that the clock probably wouldn't keep very good time