Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 113
it is when theyare of large diameter that their superiority overcast-iron pulleys is most decided. 110 MECHANICAL DRAWING In a wrought-iron pulley the rim is made ofsheet-iron, and riveted to the arms, which aremade from bar-iron. The hub is sometimes alsomade of wrought-ixon, but generally it is… … rig. 198—Crank Disks, quently takes the place of the ordinary crank.This disk is hollowed out on the side next thecrank-pin, as shown in Fig. 198, and the extraweight on the opposite side balances the crank-pin,and the part of the connecting-rod which revolveswith it. Two crank-disks may be used to…
Mechanical drawing · Machine design
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