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 35
THE MACHINIST AND TOOL MAKERS INSTRUCTOR. 31 touching a line perpendicular to the diameter at the otherend. The cosine of an arc or angle is a line extending from thesine to the center. The versed sine of an arc or angle is a continuation ofthat part of the radius from the cosine to the…
Machinery
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