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 56
145. VAN WINKLES POWER METER.—A set of helical springs attached to two discs,one of which is made fast to the pulley, unkeyedand loose on the shaft; the other disc and hub are clamped to the shaft. A set of levers on a rockhaft transmits the strain on the springs to an in-dex and dial indicating… … 146. TRACTION RECORD-ING DYNAMOMETER.—The _^^ draft-pull compresses -qjr^ the elliptic-shapedsprings, moving theindex hand D, whichcarries a pencil at its opposite end K. A paper ribbon is drawnunder the pencil and wound on a drum, driven by clockwork, mak-ing a continual record, to be measured by…
Mechanical movements
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