Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 742
d under at ist-iron; tt thus fixed i- Bel in motion t : the handle ,-. the dull ben. wn when i or, in technical I • crewing the upper portion or nut • of a piece of pointed iron which enters a hole i drill down- wardSuch, with some unimportant m i in which I ted. Its ad\ antiithan an-, form of… … 732 TOOLS. drill-stock, and acting upon it by friction for the more complicated combination of ratchet-wheel, click,and spring. Fig. 3435 shows an elevation, and Fig. 3436 a section of this improved form of the tool,a is the hallow nut for adjusting the drill to different lengths, b the screw for…
Mechanical engineering
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