Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 174
the larger piece of the end is then bent up nearly at right angles to the shaft, so as to actlike a paring-chisel; and the corner of the reed, near the nose, also cuts slightly. The form of thenose-bit, which is very nearly a diminutive of the shell-auger, Fig. 507, is better seen in the… … Holtzapffels Tuiniugand Mechanical Manipulation. 170 BORING TOOLS. 510. rvsr and with long removeable shanks, for the purpose of boring wooden pump-barrels; they are then calledpump-bits. There is some little uncertainty of the nose-bits entering exactly at any required spot, unless asmall…
Mechanical engineering
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