U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 653
clined surface k, the spring G, tube II, rod Ihaving follower /, and air-valve i, substan-tially as described. 11. The combination, in a railway-signal, of 90a movable pointer, a clock-movement operatedby a spring arranged to be compressed by apassing train, the lever E, spring G, rock-shaft a, and… … JVapoleon3Ji>CCS. . PMOIO-LlTHO.. WASHINGTON, I United States Patent Office. NAPOLEON B. REES, OF LINCOLN, KANSAS.TIME-LOCK. SPECIFICATION forming part of Letter;; Patent No. 493,115, dated March 7, 1893. Application filed July 21, 1892. Serial No, 440,807. (No model.) To all whom it may…
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-467-206.webp)
![An illustration from Rudiments of the art of building : represented in five sections [...] for the use of architects, builders, draghtsmen, machinists, engineers and mechanics (1853)](https://img.insideoutlibrary.com/img/200/ia-rudimentsofartof00bull-164-74.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-527-362.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-695-452.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-90-37.webp)
