Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 132
f same wheel,and c is the chain used. Taking all things into consideration, the best way tomake these wheels is to form the groove on rim by a core.You may make the core in sections, but usually it is bestto make a whole box unless it is a very large wheel. This box may be turned in the lathe to… … 132 PATTERNMAKING. core-maker and moulder. It is also better for the pattern-maker, as he is less liable to make a mistake in the pitch ofthe wheel. The cores will always fit the moulds, whilesegment cores are very frequently a little too long or tooshort; this, of course, destroys the accuracy of…
Patternmaking
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