Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 582
AB at F. This determinesthe leugth of E, the force required. Peoblem 300. A cord hangs from ttoo fixed points A and B, and supports threeweights, P, Q, and E, fastened to it at the points C, D, andE ; the ivcight P = 20 Ihs. Determine the weights of Q andE, so that the cord shall hang in a given… … Fig. 349. Draw ac equal to the weight P (20 units), and ao and coparallel to AC and CD. Then aoc is the triangle of forcesacting on the point C, and ao and co measured by the samescale as ac will determine the tension on AC and CD. 2 0 562 SOLID GEOMETRY Produce ac, and draw the lines do and eo…
Geometrical drawing
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