Notes and examples in mechanics; with an appendix on the graphical statics of mechanism; (1897)
Church, Irving P. (Irving Porter), 1851-1931 · New York, J. Wiley & Sons · leaf 47
ows an ordinary door asa free body. Support is provided by two verti-cal hinge-pins, of smooth surfaces, whose dis-tance apart is such that the lov^er one alonereceives vertical pressure from the door (i.e.,furnishes a vertical supporting force, F^, at itsJiorizontal upper face). The upper… … Fig. 44. DOOR—WEDGE AND BLOCK. 39 Innge-pin, by its reaction H^^ offers lateral support at that point.Given tfie weight G of the door (considered as concentrated inits centre of gravity) and the distances a and A, it is required todetermine the three pressures, //, //g, and V^.From ^(vert. comps.)…
