Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 240
the delicate cores, it has been found best, and especiallyso in the case of such small patterns as are illustrated, and SOME PATTERNS. 239 which require only short flask pins, to trust to the skill ofthe moulder in Ufting the flask. This skill may vary aspay-day comes nearer; in fact, it may be… … Fig. 108. is the laying out and drilling of plate B. This is donealmost entirely by the use of the jig mentioned. The jig spoken of in the former article is illustrated byFig. 108, and it consists of a bar A, with the ends projectedto one side as shown, to allow of drilling holes directly oncentre…
Patternmaking
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