Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 205
-be made to open or close within a smallrange of temperature. ELECTRIC POWER AND CONSTRUCTION. … 735. TELEPHONE TRANS-M I T T E R . — A, A, thin iron-diaphragm ; B, india rubber in con-tact with diaphragm and the ivorydisc, C ; D, platinum foil betweentheivorydisc,C,and the carbon disc,E; G, disc and screw for adjust-ment of carbon contact; H, ad-justing screw for diaphragm con-tact.
Mechanical movements
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