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 101
Fig. Jumbo Chuck. Chuck, and consists of a chamber having a central hole infront and a pump center at the back for the centering of thestaff. The sides of the chamber are cut away to allow ofthe insertion of the balance and, when it is in position, with … Fig. 78. Balance Chuck. one end projecting through the central hole and the otherheld by the pump center, a sliding cover is pushed forwardso that the balance is completely inclosed and protectedfrom accidental injury. Its construction will be readily un-derstood from the drawings. Fig. 78 is…
Clocks and watches · Lathes
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