k will haveto be done by hand after it is taken from the lathe; thisshould be left, however, until the tooth blocks areglued on and the turning all done. The next thing to do is to mark out the spaces inwhich to fasten the tooth blocks. If the pitch of the gearis not more than one inch, these… … O M PATTERNS FOR CAST GEARS 113 the gear, or in other words, parallel with the axis of thewheel. They should be made of good, clear, straight-grained wood, thoroughly seasoned. There are several ways of putting these blocks onthe rim. Three ways will be explained that will includeall the practical…
Patternmaking
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