Pattern making and foundry practice; a plain statement of the methods of wood pattern making, as practiced in modern pattern shops, with complete instructions for sweep work and notes on foundry practice, together with numerous drawings taken from actual patterns .. (1905)
Hand, L. H. (Louis Henry), b. 1854 · Chicago, F. J. Drake & co. · leaf 113
swept into the drag—orfoundry floor, as the case may be—having theform of the inside of the casting. (See Fig. 64.)The cope is then placed in position, rammed upand removed. The second sweep is then placedon the stake and the sweeping continued until a 108 PATTERN MAKING perfect form of the outside… … ^ -patr^oftmimttry awe^Tja arrangements should be made for supporting thesand. It is possible, for certain special work, to sweepboth cope and drag; but it is seldom done. There are various reasons for using sweep AND FOUNDRY PRACTICE 109 work, the first and most common of which isfrom a…
Patternmaking · Founding
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
