Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 48
Let P be the power, F the fulcrum and W theweight, then for a. lever of the first kind. (Fig.110.) P=W FWFP W=P FP FW And for a lever of the second kind. (Fig. 111.) P=W FWFP W=P FPFW And for a lever of the third kind. (Fig. 112.) P=W FWFP W=P FPFW The Wheel and Pinion. The mechanical advantage of… … i*D-»l<—R—*l ® Fig. 113. To find the power. Multiply the weight by theradius of the drum, and divide by the radius of the wheel. To find the radius of the wheel. Multiply theweight by the radius of the drum, and divide bythe power. 46 MECHANICAL DRAWING To find the radius of the drum. Multiply…
Mechanical drawing · Machine design
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