Pattern making; a practical treatise for the pattern maker on wood-working and wood turning, tools and equipment, construction of simple and complicated patterns, modern molding machines and molding practice (1916)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 198
he flask pins, however, PATTERN MAKING 179 should be machine turned all over and made duplicate, for, in caseof breaking, the labor of replacing will be very much lessened ifthe pin can be replaced without changing the alignment of thepattern. Parallel Device. For the side arms of the parallel… … Fig. 305. Layout for Side Arm of Parallel Motion Device illustrated in Fig. 305. The radius r and the dimension a must bethe same. Side Arms. From points a, e, and q, project vertical linesaj and qb. Make all straight lines with a knife point. With /for a center, scribe arc blop with radius k,…
Patternmaking
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