Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 87
Fig. 165—Wall-bracket and Bearing. yield, and thus cause a diminution of the stressdue to unequal contraction. The cross section of the arms of cast-iron pul-leys is generally elliptical. Example 11. Tight and Loose Pulleys. Fig.166 shows an arrangement of tight and loose pul- … Fig. 166—Tight and Loose Pulleys. tension or compression, and if the arms arestraight they are very unyielding, so that the re-sult of this initial stress is often the breaking ofan arm, or of the rim where it joins an arm. Withthe curved arm, howeverj its shape permits it to leys. A is the last…
Mechanical drawing · Machine design
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