American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 241
by passing under its whole width, andwe may characterize the action as one of par-ing. The slide rest tool is at right angles to.the axis of the work, and its action is ratherthat of uncoiling. The width and thickness ofthe shaving lie in different directions, Fig. 8,The shaving must therefore be… … it is uaual to take the width of the shaving onthe superfluous material, as in Fig. 13. Thetool thus cuts only on one edge; on the other itwill be torn from the work, and the point ofthe tool will trace a spiral on the face of thework, and the amount of force expended willbe a maximum. If the…
Clocks and watches
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