Appleton's dictionary of machines, mechanics, engine-work, and engineering . b> cast it square, and plane it to the required bevel afterwards. That being the case, Fig. 2384 hows thaflasks 1, 2, 3, after they are put together. In working them, 1 and 2 are first set, nearly fiJcd with IRON. Ill sand, and the pattern knocked in as shown, the whole well rammed, and the parting made along a flask 3 is then added, filled and rammed, levelled, covered with a board, and all three turned over,so that 1 becomes the top, which is now taken off, a parting made along the line b b, and the runner-
Appleton's dictionary of machines, mechanics, engine-work, and engineering . b> cast it square, and plane it to the required bevel afterwards. That being the case, Fig. 2384 hows thaflasks 1, 2, 3, after they are put together. In working them, 1 and 2 are first set, nearly fiJcd with IRON. Ill sand, and the pattern knocked in as shown, the whole well rammed, and the parting made along a flask 3 is then added, filled and rammed, levelled, covered with a board, and all three turned over,so that 1 becomes the top, which is now taken off, a parting made along the line b b, and the runner-stick put in to make the runner or in-gate, as shown by the dotted lines near r. To prepare for casting,the runner-stick is taken out, flask 1 is lifted off, and the part of the pattern (shown white) is taken outfrom the middle flask; the middle flask is then removed, and the shaded part of the pattern (which hasbeen fitted by pins or lugs, as shown) is taken out from flask 3 or the drag. The flasks are then united,and the pouring made through r. It is manifest that the s
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
