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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 48

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 48
m the end, a, of thespiral, through an eye, r, over the roller,O, to the end of the index, Z. The eye,r, is carried by the spring,/, and is raisedor lowered by means of the set-screw, s.If the eye be lowered, the strand of hairis subjected to tension, and the index, Z,thereby raised. If the eye be… … 44 MEASUREMENT OF POWER, SPRINGS. mometer. When the temperature rises the spiral curves inwardly, sothat its free end, a, moves downwardly to a. The tension of thestrand, H, is thereby diminished, and the index falls. Since the rel-ative moisture has remained the same, the length of the strand is…

Mechanical movements

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