Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 151
ATTERNMAKING. torn about J thick. Make the core-box with a joint at theupper edge of flange on Une d, d, not forgetting to put a piecein box to form that part of the sleeve for valve stem whichshows on the inside of valve. The core prints for the valvestem should be carried down to the body of… … Fig. 51. some builders, who would prefer to make the piston in twoparts and bolt them together, which would also do awaywith the necessity for a core. Glue up the ring to form pattern in cants or segments,cutting the heads into the ring on each side, turning a recessto receive same, and putting in…
Patternmaking
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