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 171
f the patternB were to be set with the edges a a resting upon the molding boardand the sand of the drag rammed down upon its upper face, it wouldbe sprung out of shape. To avoid this the follow board A is madeto exactly fit the under side of the pattern. Then when the sand isrammed, the whole… … H . $ w s« < 3 t g *3 P 3 co nilto « -g gr*.2 O PATTERN MAKING PART III COMPLICATED PATTERN CONSTRUCTION HAND= AND MACHINE=MOLDED EXAMPLESHAND-MOLDED HYDRAULIC TURBINE Conditions. This class of work requires a very clear concep-tion of the principles of pattern making. The working drawingsare…
Patternmaking
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
