Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 347
irerses around the shaft to be centered.1389. End view. 1388. CENTERINGTOOL. Used for scratch-ing the centre on roundshafting or rods. Theslotted arm E swings onthe spindle A, as it tra- Z2>^ MILL AND FACTORY APPLIANCES. • 0 J 0 l& 20» n. llilM \J £>» … 1390. VERNIER CALLPER, with slow-motion stopscrew. 1391. EXP AN-SION BIT.—Thespring clip held bya screw clamps thecutter in position to bore any size hole within its limits of expansion.
Mechanical movements
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