tion. The vise is represented in three successive" positions, viz., BC, BE, and FG, BBF being positions of the chuck-pivot, and CEG the corresponding ones of the cross head. This diagram answers to the supposition that the ob- server stands upon the floor alongside the planer. But suppose the… … Fig. 3 is at once seen to answer to this measured by half the arc AO. Hence, if DG=BE the tool E will be at G, supposition, where AD is the stationary vise, and B, C, E, &c, positions of the when B moves to D, because in prac- tool and guide pivot. The chuck-pivot tice the tool, in making a cut,…
Engineering
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