Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 85
° = TT (in circular measiu-e 1.5708) we have r= 0 M=l!-2 +. - For 6=1 we havethe radius 0 T making an angle of 57 ? 29 + with the initial line, and in length equal to - units, i. e., U. For 6=45°= -f (or 0.7854) r will be OR=V:i +. Then 0H = 0 R for in rotating to 0 H the radius vector passes over… … To draw a tangent to the curve Ave emjoloy the relation tan ^=26, <^ being the angle madebj the tangent line with the radius vector, while 0 is the angular rotation of the latter, in circularmeasure. BRUSH TINTING AND SHADING. 79 CHAPTER VI. TINTIJJG —FLAT AND GRADUATED.— MASONEY, TILING, WOOD…
Mechanical drawing · Lettering
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