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A Roskopf, pin-lever, or pin-pallet escapement is an inexpensive, less accurate version of the lever escapement, used in mechanical alarm clocks, kitchen timers, mantel clocks and, until the 1970s, cheap watches now known as pin lever watches. It was popularized by German watchmaker Georges Frederic Roskopf in its "proletarian watch" from 1867 ...
The escapement is a mechanism in a mechanical clock that maintains the swing of the pendulum by giving it a small push each swing, and allows the clock's wheels to advance a fixed amount with each swing, moving the clock's hands forward. The anchor escapement was so named because one of its principal parts is shaped vaguely like a ship's anchor.
Mechanical alarm clocks and kitchen timers use a less accurate form of the lever in which vertical metal pins are substituted for the pallet jewels. This is called a Roskopf or pin-pallet escapement , and was previously used in cheap pin-lever watches.
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The following is a list of American companies that produced, or currently produce clocks. Where known, the location of the company and the dates of clock manufacture follow the name. Samuel Abbott; Montpelier, Vermont (1830–1861) Ansonia Clock Company; Ansonia, Connecticut and Brooklyn, New York (1851–1929)
Conservation experts advise clocks need to be serviced regularly. A clock is a complex mechanical contraption made of a variety of materials and with many small moving parts. [10] Even under perfect conditions lubricants deteriorate. Clocks should be examined and re-lubricated every three years.
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