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 275
Mocks or halves of the core box should first be cutout and squared up. They are then clamped together andplaced in the vise. A hole is then bored out throughtheir center Avith an auger and bit. The bit used shouldhave a diameter a trifle smaller than that which the fin-ished core is to be. This is… … Fig. 289—The core box used for all of the cored patterns and four holes drilled in the other half. These are tolock the core-box halves. The finished core box is shownin Fig. 289. Having brought the patterns to shape they are allgiven a thorough sandpapering without sparing theproverliial elbow…
Machine-shop practice · Handicraft
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
