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twig field
Apr 19,2025
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C.1875, T. Mayhew and Co., NY "Pneumatic Timer' A well made 8-hour balance/lever movement, designed to measure the total time of non-vacuum condition, by virtue of a leather bellows that pulls a piece of spring steel into the balance whenever it receives

Anonymous (not verified)
23 October 2024
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The strongly powered movement will resume running when the vacuum is released. The dial is clearly inscribed pneumatic time, patented June 15, 1875, and with a nickel plated movement of the same era. The basic unit measures 3 x 4' , with a dial of 2' diameter. Runs, but needs adjustment. A curiosity.

Clock image
Price Type
auction
Manufacturer
Mayhew, T and Co
Credit
R.O. Schmitt Fine Arts
Creditor url
http://www.roschmittfinearts.com
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C.1875, T. Mayhew and Co., NY "Pneumatic Timer' A well made 8-hour balance/lever movement, designed to measure the total time of non-vacuum condition, by virtue of a leather bellows that pulls a piece of spring steel into the balance whenever it receives vacuum. The strongly powered movement will resume running when the vacuum is released. The dial is clearly inscribed pneumatic time, patented June 15, 1875, and with a nickel plated movement of the same era. The basic unit measures 3 x 4' , with a dial of 2' diameter. Runs, but needs adjustment. A curiosity.

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