Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 60
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…
Mechanical movements
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