Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 274
ridges or guides in the mould. Secondly. When the hole extends only part way through, the hole of the pattern, Fig. S10, is fittedwith a solid plug, sawn and filed out of soft unburnt brick, principally sand, (or the common Flandersbrick;) the core is made long enough to project about as much as… … Thirdly. The patterns for non-work and some others are mostly made witli prints instead of holes,as in Fig. 811; that is, the pattern-maker places square or round pieces on one or both sides of thepattern, where the square or round holes are respectively required; and the founder has moulds…
Mechanical engineering · Mechanics · Engineering
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