ticularjob, take a piece of wood about seven inches long andone and one-half inches square, place it in the latheand turn to shape and dimensions as shown by Fig. 48.The shaded portion will be cut out so it will fit down on to PLATE WORK AND IRREGULAR PARTING 89 the pattern already made. The line… … Fig. 49 the same as already described, except as to the piecesmarked X. These are to form a crease or groove in thecore, to form the babbitt pieces on the casting shown atO, Fig. 46. These are simply pieces of wood one-eighthinch thick, of a size equal to the cross-section of thecore box, and with…
Patternmaking
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