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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 (1885)

Mullin, Joseph P · New York : D. Van Nostrand · leaf 107

An illustration from 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, 1885, leaf 107
89 TWO WAYS OF MOULDING CYLINDEES. the bottoms, divisions, and side of the port and exhaust cores, should be loose and an easy fit, so that they will come out of the body of the box with the core. They Fig. 89. can then be easily drawn in sections, without breaking the port or exhaust cores. … Fig. 90. Fig. 90 is a side and end section of the stand core- box. It is made just the shape of the inside of the casting required , and all the brackets and pieces, -Z>,

Founding · Patternmaking

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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