Notes and examples in mechanics; with an appendix on the graphical statics of mechanism; (1903)
Church, Irving P. (Irving Porter), 1851-1931 · New York, J. Wiley & sons; [etc., etc.] · leaf 28
Fig. 18. THEEE-rORCE PIECES. 19 Bell Crank. … Fig. 19. instanced in Fig. 19, where the two-force piece ^ . . ^ is sub-jected to tension through theaction of a suspended weight, Gjand a bell-crank lever, BCD,The hiDge-pressure at A, fromthe support S against the pieceA . , B, must pass through thecentre of the circle at A ; whilealso the…