Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries (1910)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N. W. Henley publishing company · leaf 266
MM … 697. ELECTRIC RATCHET. The electro-magnets M, M, operated by current from a cen-tral clock, vibrate the lever L, in unison andmove the escapement w^heel by the pawl D, D. A very simple device for operating the es-capement of a secondary clock from a centralstation. 266 HOROLOGICAL, TIME DEVICES,…
Mechanical movements
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