Leeds, Charles Carley, 1870- (from old catalog) · New York, D. Van Nostrand company · leaf 56
from these points draw tangent lines to represent the cordin different positions when being unwound. The helix or screw is the curve which w^ould be generated upon acylinder revolved at a constant speed against a point, the point movingalong at a constant speed parallel with the axis of the… … CLASi Indusfrial tradc MachinistNAME John W.Roberts datc Feb. 6.0T. THE CARNEGIE TECHNICAL SCHOOLSp/rrsBuffGH, PA.School of A^p/fCNTiccs and Journeymen MECHANICAL DRAWING Engineering CurvesThe Path or a Moving Point SCALE Full Size owe.No. C.I0I7 LESSON No. 23. SPUR GEAR.—From Drawing C-ioiS make a…
Mechanical drawing
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