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 (1921)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 204
nd in Fig. 311, the machine with the pattern in position for mold-ing. An end view of the stripping plate, draw plate, and assembledmechanism of the drag machine is illustrated in Fig. 312, and Fig. 313is a section through the center of one pattern. This machine isfitted to make four molds which… … Fig. 313. Section Elevation through One Pattern; Dotted Lines Show Position ofParts with Pattern Drawn the pattern cannot be bolted directly to the draw plate a. Toobtain space beneath the stripping plate to install the mechanismspacers are interposed between the top of the machine frame and-the…
Patternmaking
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