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Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices"; (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing company · leaf 234

An illustration from Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices";, 1917, leaf 234
597. TROLLEY REPLACER. TheTh double spiral grooved cone carries a centralgroove A for the wire, and on each side ahelical groove, B, B, which quickly carries thewire to the central groove when displaced.Thus the conductor does not require any specialskill in replacing a displaced wheel, for if…

Mechanical movements

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