Barrows, F. W. (Frank Wilson), b. 1853 · New York, N.W. Henley Pub. Co. · leaf 120
re explained. It is a good plan to have the hubsfitted with bosses for set-screws, asshown at a, b, Fig. 30. The core prints wiU, of course, allhave I pins to fit the hubs. The core-boxes for hubs may bemade straight, but it is better tohave a recess formed in the hub;this may be accomplished by a… … Fig. 33- CHAPTER II. PATTERNS FOR CABLE PULLEYS. These pulleys, or sheaves, are sometimes made in athree-part flask when there is but a single groove, as inwheels for conveying power, where the wire or hemp cabletakes the place of a flat belt. There are some objections to this way of…
Patternmaking
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