U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 499
d to set the two said pointers, and the spring-actuated leverr provided with a heel s bearing on the saidlever and having a wedge-shaped end adaptedto be thrust between the teeth of the saidpinion to insure the exact setting of thepointer g, substantially as set forth. In testimony whereof I affix…
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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