An elementary treatise on mechanics, embracing the theory of statics and dynamics, and its applications to solids and fluids (1849)
Smith, Augustus William, 1802-1866 · New York, Harper · leaf 128
z.ADE = ft /= the length of thebeam, g the center ofgravity, and Dg=a. The wedge is kept in equilibrium by the pressure of thebeam upon it at E, and the horizontal force P acting upon itat some point H. The beam is kept in equilibrium by itsweight w acting at g and the reaction R of the face of… … R: a cos. j3 /cos. (a—0)But the principles of the wedge giveP=R. sin. a. THE SCREW. 105 _> a sin. a cos. (3 .. P=w.7. —. / cos. (a—(3) By an examination of this value of P, it will be seen that the power necessary to keep the wedge from moving will diminish as the wedge advances beneath the…
Mechanics, Analytic
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