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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 208

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 208
754. ELECTRIC PERFORATING PEN, Edison model. Consists of a small pointedtube with a perforating needle on the insidevibrated by a small electro-magnetic motorfixed on top of the pen. A, B, Armaturecoils on iron studs fixed to frame; Q, R, re-volving arm and fly-wheel; Z, commutator;N, M, O, spring… … 755. ELECTRIC HOIST.—The footlever is the friction brake. The left-hand lever is for release, the right-handlever is the starter.

Mechanical movements

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