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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 224

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 224 — o that they may be hardened and easilyremoved if a mistake be made and too much removed from apiece in the final correction and testing. The lever shownin Fig. 202 has a proportion of forty to one. Pinhole index plates are made by polishing the surface,cutting a hair line circle on which to center… … Fig. 202. The 60-hole index on the pulley of the lathe spindle mayalso be used in cutting a number of index plates for usewith the wheel cutter, as follows: 2, 3, 4, 5, 6, 10, 12, 15,20, 30, 60. These methods are given for the sake of completeness, asit may happen that the watchmaker is thousands…

Clocks and watches · Lathes

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