U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 299
the frame and projecting at its ends throughthe same, an eccentric mounted on the rear end of the shaft and having its edge engagedwith the stud, and a tension-spring appliedto the shaft to resist its rotation, substantiallyas described. *5 In testimony whereof I have signed thisspecification in…
Clocks and watches
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