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The watchmakers' lathe, its use and abuse; a story of the lathe in its various forms, past and present, its construction and proper uses (1903)

Goodrich, Ward L. [from old catalog] · Chicago, Hazlitt & Walker · leaf 53

An illustration from The watchmakers' lathe, its use and abuse; a story of the lathe in its various forms, past and present, its construction and proper uses, 1903, leaf 53 — angles A, c, c, and B, c, c equilateraltriangles, and the resultant compression will not passthrough the centers of the jaws in the line A, B, but willpass nearer to the inner ends of the jaws, in proportion asthe seat is too small; in this case we will have the workheld by the inner ends of the… … THE AMERICAN LATHE. 53 outer ends will receive the force of compression and theinner ends of the jaws will be without proper bearing onthe work, and it will slip as before. If the chuck seat is notround, the jaw which comes opposite the flattened side ofthe chuck seat will come into action sooner…

Clocks and watches · Lathes

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