Pattern making; a practical treatise for the pattern maker on wood-working and wood turning, tools and equipment, construction of simple and complicated patterns, modern molding machines and molding practice (1921)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 121
g more than theother side, the rapping plate should be located away from the centerof gravity toward this side of the pattern so that in drawing the liftwill be neajly over the resultant center of resistance. For medium-sized patterns, two rapping plates should be provided so that thepattern can be… … . 1S3. Rapping Plate andDraw Key PATTERN MAKING 105 Standard Core Prints. Economy in Use, AVhile standarddimensions of the cylindrical core prints are not universally used,many large corporations operating pattern shops and foundrieshave adopted a standard, and the economy of this practice…
Patternmaking
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.