I.C.S. reference library : a series of textbooks prepared for the students of the International Correspondence Schools and containing in permanent form the instruction papers examination questions, and keys used in their various courses (1904)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 231
y, if it isdesired to hoist a weight with awindlass, Fig. 10, the force is ap-plied to the handle of the crank,and the distance between thecenter line of the crank-handleand the axis of the drum corresponds to the radius of thewheel. Example.—If the distance between the center line of the handleand… … Fig. 10. EXAMPLES EOK PRACTICE. 1. The lever of a safety valve is of the form shown in Fig. 1, wherethe force is applied at a point between the fulcrum and the weightlifted. If the distance from the fulcrum to the valve is 5J inches andfrom the fulcrum to the weight is 42 inches, what total force…
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