The pattern maker's handybook : a practical manual on patterns for founders, embracing information on the tools, materials and appliances employed in their construction (1887)
Hasluck, Paul N. (Paul Nooncree), 1854-1931 · London : C. Lockwood · leaf 108
LOCK PATTERNS. lORES are internal parts which form a hollow in the casting. Core-boxes are used for forming cores, and illustrations of boxes used for making round and square cores are given be- low. The drawings, Figs. 63 and 64 are so clear that verbal explanation is un- Fig. 63. Core-Box and… … Fig. 64. CORE-BOX AND SQUARE CORE. j^^^ r^^^ ^ p.^^^ of hard wood just the shape for the hollow space within the casting, and also with the core prints on it. It is easier H
Patternmakers · Patternmaking
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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