Practical mechanical drawing and machine design self taught .. (1907)
Westinghouse, Charles. [from old catalog] · Chicago, F. J. Drake & co. · leaf 149
ofthe same shape, will be the same for both the pro-jection and the hollow—will depend on the num-ber of teeth in the piston, but the diameter of thepitch circle must be an exact multiple of the diam-eter of the rolling circle. If the pistons are two-toothed wheels, as shown in Fig. 224, the… … If the pistons are six-toothed wheels, as shown inFig. 227, the diameter of the rolling circle is one-twelfth that of the pitch circle; and so on. Fig.228 shows a pair of pistons consisting of two half-cylinders of different diameters and connected bythe curves 1 and m. The circular portions…
Mechanical drawing · Machine design
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