Notes and exercises in natural philosophy : including statics, hydrostatics, pneumatics, dynamics and hydrodynamics : designed for the use of normal and grammar schools, and the higher classes in common schools (1860)
Sangster, John Herbert, 1831-1904 · Montreal : J. Lovell · leaf 47
differ-ence of pitch of the two screws. For instance, in Fig. 1*, the part B works within the part A. Now, if Bhave a pitch of ^ijth of an inch and A a pitch of iV, then at each revolu-tion of the handle the weight will be raised through j*g:—2V=^8^ of aninch, and the whole instrument has the same… … Then P : TfHence P = : d : ZX2X3-1416.Wxd /X2X3-1416 PXZX2X31416d • ABT. 181.3 THE ENDLESS SCREW. 45 Example 101.—What power will exert a pressure of 20000 Iba.by means of a differential screw having a power lever 50 inches inlength, the exterior screw a pitch of ^ of an inch, and the innerscrew a…
Physics
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