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 189
Fig. 294. Drag Mold of Cap for Hanger made by the pattern board. The cap and plate pattern then areremoved and the gates cut. Closing the cope forms a mold that will produce a pattern plate, no6h Pin • … Vibrator Affached Here Fig. 295, Completed Plate Pattern an illustration of which is shown in Eig. 295, and on the reverseside of which will be the opposite^ side of the cap pattern. PATTERN MAKING 171 Use of Steel Frame. A system used in some foundries is tohave a steel frame for the plate…
Patternmaking
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