Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 230
he path of the extremity of the lever D; theintersection of the radial with this arc will give the point 5 on the smaller arc, corre-sponding to 5 of the larger. In the same manner other positions can be determined. whitworths quick return motion. Fig. 415 is known as Whitworths Quick Return… … Fig. 415. tangent drawn from each side of the crank-path to the point e will give the extrememovements of the link e, and a line at right angles to this line and from the centre of thecrank-shaft on each side will divide the crank-path in two parts. The tool-holder, /, orplaner platen, travels over…
Mechanical drawing
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