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 184
164 MODERN MOULDING AND PATTERN-MAKING. in sectional elevation at Fig. 164, and in perspective elevation at Fig. 165. i>, Fig. 164, represents the air- box, Cr Gr the lower tuyeres, F F the upper tuyeres ; E is the arch over the tap-hole L. is the arch over the slag-hole H. The line from F to J… … Fig. 164. Sectional Elevation of the CoUiau Cupola. lining. The peculiar features of the CoUiau cupola are the proportions and arrangements of the upper and lower tuyeres. The lower tuyeres are rectangular, and are intended to furnish the air necessary to the com- bustion of the fuel. They are…
Founding · Patternmaking
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