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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
nel-shaped vessel, H, held in place by-wires, ab, at the top and bottom, which hold the lower end of thefunnel a short distance from the diaphragm. A button is fastened tothe middle of the diaphragm, to which is fastened the wire, K. Thefunnel concentrates the sound waves and guides them to the… … 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…

Mechanical movements

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