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 161
141 LABGE HOLLOW CASTINGS. be taken out, and the different sections of the box removed without disturbing the core, when the dry- plate and core can be lifted and placed in the oven to dry. Fig. 145 is the plan, side and end elevations of the jacket core-box for the ends of the casting. It is a… … Fig. 146. the square end is also loose at and has two ^' vent-holes bored between the bridges K. When the core is ready to take out of the box, it should be cov- ered with a dry-plate, and turned over. After this has been done, take the screws out at and draw the square end and bridges K ; then…
Founding · Patternmaking
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
