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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 40

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 40 — Fig. 25. Enlarged View of Eathe Spindle, showing Chuck ProperlySeated. Compare with Fig. 26. … Fig. 26. Enlarged View of Eathe Spindle, showing Chuck Seat tooSmall. Compare with Fig. 25. Acuity. The reason is that many of the European makersuse a thread that is rounded at the top and bottom as inFig. 2jy while the Americans use a sharp V-thread asshown in Fig. 28. Of course the draw-in…

Clocks and watches · Lathes

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