Leeds, Charles Carley, 1870- [from old catalog] · New York, D. Van Nostrand company · leaf 58
t is necessary to lay out the involute curve but once forthe student may set his compasses to a radius (which M-ill be an approx-imation to this curve), to throw in the faces of the other teeth. Thiswork requires the utmost care to obtain accurate results. WTien pencil drawing is complete, make a… … CLASS Industrial trade Machinist NAME John yv. Roberls date Man20-O7. THE CARNEGIE TECHNICAL SCHOOLS pittsburgh, pa.School of Apprentices and Journeymenmechanical drawing Spur Gear SCALE Full Size Diva.No.C^IOI& LESSON No. 24. SPECIFICATIOX.—This lesson is for the purpose of helping thestudent…
Mechanical drawing
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