Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 284
32, or 24, thus making the final operation much easier. EXAMPLE. Required, the weight of a one-eighth bend, as perFig. 140.Operation. By Form:— 2R (ID plus thickness) multiplied by .64, equalweight of 90° arc, i thick, or,40 X 8.7s X 64 X 3 =required weight; or 2X4672 -T- 8 = 84 lbs, required… … Fig. 141. 284 PATTERNMAKING. This weight is obtained by using Table II. for thestraight portion and Form A for the curve.Operation. By Table I.: Flanges = 3i§diam = 202.62 ID = 24 diam = 117.60 i length of flange = 85.02 Two flanges and fin = .04J Total weight of flanges, = 361.34 = 361.34 OD pipe…
Patternmaking
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