Pattern making and foundry practice; a plain statement of the methods of wood pattern making, as practiced in modern pattern shops, with complete instructions for sweep work and notes on foundry practice, together with numerous drawings taken from actual patterns .. (1905)
Hand, L. H. (Louis Henry), b. 1854 · Chicago, F. J. Drake & co. · leaf 94
.4 of aninch at a right angle from the pitch line a-a^and a-f at the pitch diameter, the profile of a coneis obtained to which the teeth or cogs may be *The exact decimal is 21.9912. AND FOUNDRY PRACTICE 89 glued with accuracy and precision. The calcula-tion for both ends of the teeth should be… … centers so established and finish in the usualmanner. Fig. 49, showing an iron dome with projectingornament at the top and a handle at each side, ishere introduced as a sample of what may bedone with hollow cores. Assume that a roughform has been glued up as shown in cross-sectionin Fig. 50. Attach…
Patternmaking · Founding
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