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 91
again repeat- 9° THE AMERICAN LATHE. edly. Too much pitch makes the wax too soft and the worktakes too long in cooling, as it hardens slowly when melted,while sealing wax hardens very quickly and is brittle whencold. From the above it will readily be seen that the work-man must get used to his wax,… … Fig. 62. purchased. With this screw chuck are sent a number ofcement brasses having a thread cut on them to fit the threadin the screw chuck and these brasses are so cheap thatthey may be purchased by the dozen or singly in varyingsizes from ^4-inch up to 2^ inches, which is large enoughto hold a…
Clocks and watches · Lathes
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