Modern moulding and pattern-making : a practical treatise upon pattern-shop and foundry work, embracing the moulding of pulleys, spur gears, worm gears, balance-wheels, stationary-engine and locomotive cylinders, globe valves, tool work, mining machinery, screw-propellers, pattern-shop machinery, and the latest improvements in English and American cupolas ... (1907)
Mullin, Joseph P · New York : D. Van Nostrand · leaf 109
88 MODERN MOULDING AND P ATTERN-MABJNG . belt and steam-inlet — in fact, all the bosses, etc.-' must be loose. … Fig. 87. A plan and section of the valve-chest core-box are shown at Fig. 89. It is a half box ; and it will be seen Fig. 88. by the drawing that the body, port and exhaust cores are all made in one. The pieces of wood which form
Founding · Patternmaking
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