Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 338
1339. COLLAPSING TAP.—The ^ hook cutters C, C, slide in the taper PIP I shank B, and are drawn up to their full JO diameter for cutting by turning the shank handle in the inclined slot in the shell. and the reverse motion of the handle for collapsing the tap. 1340. Longitudinal section. F c / V 1… … 1342. AUTOMATIC SCREW-CUTTING DIE. — The outsideshell is movable on theinner shell, which holdsthe cutters in slots. By-throwing the handleover, the cutters are re-leased from the screw.The centre pin, nut, andslot pin is the automaticrelease by contact withthe screw, which pushesback the slot pin…
Mechanical movements
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