Shop practice for home mechanics, use of tools, shop processes, construction of small machines. Contains a chapter also on theoretical mechanics and on miscellaneous information relative to shop work (1920)
Yates, Raymond F. (Raymond Francis), 1895- · New York, N. W. Henley Pub. Co. · leaf 235
re, in order to compensate for tliisshrinkage it is necessary to make patterns a trifle largerthan the finished casting is to be. The amount of shrink-age depends entirely upon the kind of metal being cast.The following table can be referred to when patterns arebeing made: Brass 3/16 inches… … Fig. 265—Illustrating the meaning of draught Most patterns nuist be provided with what is knowmas a draught. The draught of a pattern is really a veryslight taper so that it can be pulled from tlie sand with-out breaking the mould. This will be made clear by re-ferring to Fig. 265, which shows a…
Machine-shop practice · Handicraft
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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