The mechanic's tool book. With practical rules and suggestions for use of machinists, iron-workers and others (1868)
Harrison, William B · New York, D. Van Nostrand · leaf 127
unless it be necessary to borethem eccentric to their circumferences, the boringtools already described may be more advantage-ously employed. Having selected the bar, proceed 122 mechanics tool book. to square up its ends and center them to corres-pond to the form of the center of the lathe, and… … Fig. 28. the bar is turned true and nice, make a suitable mor-tise, of the form of a parallelogram in the centralportion of the bar, in which to place a movablecutter, and form a gib or key to drive in behindthe cutter so as to hold it firmly in place. Thesecutters must be made of the size of the…
Machine-shop practice · Tools
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