U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 599
razing to- 490,204 gether of the parts of a bi-nietallic balancecomprising an annular rim and a bottom hav-ing a part on its inuer edge to enter withinand support the rim of a steel cup-shaped5 blank, substantially as and for the purposeset forth.In testimony that I claim the foregoing I have… … ENTOR ^Pv.ffi^l .Vv^ BY <&£, ATTORNEY. United States Patent Office, EDWARD WESTON, OF NEWARK, NEW JERSEY.ELECTRICAL TIME-INDICATING APPARATUS. SPECIFICATION forming part of Letters Patent No. 490,698, dated January 31, 1893. Application filed June ] 6, 1891. Serial No. 396,436. (No model.)…
Clocks and watches
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