Emerson, William, 1701-1782 · London : Printed for J. Nourse · leaf 215
angle witha given oblique circle FPR, at a given point P, z«that circle. Rule. 56. . Thro the center C and the given point P, drawthe right line DE •, and AB perpendicular to it;draw AfG and make BM = 2DG -, and draw AMto cut DE in 1. Draw IQ^perpendicular to DE,then IQ^is the line wherein the… … P-A\
Mechanical engineering
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