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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 (1914)

Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley Publishing · leaf 35

An illustration from 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, 1914, leaf 35
id. ACOUSTIC TELEPHONE. The characteristics of this tele-phone are a curvedmouthpiece, D, a vi-brating chamber, I,with an ear tube, T,for returning the vi-brations to the earwithout moving thehead in conversation.It also has attached aclock-gear vibrator,which makes a loudcall by the hammerstrokes… … SECTION III. MEASUREMENT OF POWER,SPRINGS. 33 Section III.MEASUREMENT OF POWER, SPRINGS. 38. REGISTERING WIND VANE. The wind vane, a a, 1^feet above the roof of the building, the vertical shaft, b b, which is fastened to and turns with the vane,and gives corresponding movementsto the cyhnder, c c,…

Mechanical movements

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