Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 211
same pattern and core-box14 210 PATTERNMAKING. we shall make for the globe-valve shown in Fig. 94. Bycomparing the two, it will be seen that one of the branchesmust be movable in order that the three branches or endsnecessary on each valve may be placed in the relative posi-tions shown by the two… … Fig. 94. branches are once fitted to the surface of this globe, theymay be fastened on in any position required. As a globe-valve of this size will require for the body aball from 24 to 28 in diameter, it is evident that it wouldnot be good policy to make the pattern solid, because itwould be very…
Patternmaking
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