The machinist and tool maker's instructor, containing an easy method of calculating and laying out difficult work in the machine shop .. (1896)
Genung, Edward. [from old catalog] · New York [Press of J. B. Savage, Cleveland] · leaf 130
aced at90° to the pitch line ; in the table find the number correspond-ing to the pitch required, and describe the curve for the face,and then move one pitch to the left, and describe the flankas already explained. Figure 5 also shows a pinion of 15 teeth in mesh with aninternal gear of 30 teeth,… … 126 THE MACHINIST AND TOOL MAKERS INSTRUCTOR.
Machinery
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