Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)
Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 300
une,and from September i to December 24. The forward edge of theshadow is the correct time from the middle of June to Septembe.I, and from December 24 to the middle of April. 1194a. CLOCK-SETTING DEVICE.—This invention showsthe use of a simple clutch on the shaft which carries the escape-ment… … 294 HOROLOGICAI..
Mechanical movements
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