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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 42

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 42
the building, are four hemispherical copper cups.These, whatever may be the directionof the wind, are caused to turn roundwith a speed, as has been determinedby experiment, of about one-third thevelocity of the wind. To the lower end of the shaft thusmade to revolve by the cups is attachedan… … 38 MEASUREMENT OF POWER, SPRINGS. and bears lightly against a surface, is carried from the bottom to thetop of the paper by each revolution of the cam. It should be under-stood that the paper is attached to a board drawn aside by a clock atthe rate of half an inch an hour. The number of times that…

Mechanical movements

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