Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 31
= force X distance force moves. This law applies to all screw appliances. A jackscrew is shown in Fig. n. The weight to be raised isplaced on the head of the screw, and the force is applied at theend of the handle. When the force moves the handle through onecomplete turn, the weight is raised a… … v MECHANICAL APPLIANCES 17 pitch is £ in., let us calculate the weight that can be raisedby 10 Ib. of force. In one complete turn, the force at the end of the handle movesa distance equal to the circumference of a circle of 28 in. radius. The c rcumference of a circle is calculated as follows:…
Physics · Home Economics
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