Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 143
if you use any), put the pattern back inlathe and finish turning. I have not said anything aboutthe parting, because the figures show it very plainly—line 142 PATTERNMAKING. m, n, Fig. 47. In some cases it would be possible tomould valve-seat down and thus do away with the steam-chest core. Fit on… … Fig. 47. over you would have to fasten everything from the outside,which would take more time and not be as good whendone. You will notice that the core print for steam-chest—broken line m—has a good deal of draft on the end. Thisis to enable the moulder to set this core without disturbingthe port…
Patternmaking
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