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 (1916)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 140
long piece and after-ward cut to the required lengths, after which the five pieces areglued and screwed to the board a. The ends e and e are next puton and the required half-core box is complete. Supported Core. Another reason why the pattern for pipeelbows should be made double is that otherwise…
Patternmaking
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
