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 195
s iscertain. For the snailing we would advise a special set of five laps,made of brass, fitted to the taper hole of the spindle. These JSM THE AMERICAN LATHE. laps are smaller than the regular, hut cupped in the samemanner and charged with either diamond powder, or a dn-ferent grade of emery for… … Showing Correct Position for Fig. 158. Hardinge Pivot Polisher Grinding and Polishing. under it and then re-fasten the nut. This tips the spindleso that onlv the edge of the lap strikes the wheel. The lathemust thenbe put on its slowest speed. The lap must runin the opposite direction that the…
Clocks and watches · Lathes
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