Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 160
er areequal to the circumference of the* cylinder, which is to be developed.Let the division points, a, b, c, d,e, f, etc., correspond to the divisionpoints, I, 2, 3, 4, etc., upon the circle,Fig. 288. Through the points, a, c,b, d, e, etc., draw vertical lines equalto the parallel lines drawn upon… … The part laid out so far is ajtclmnopgri. This is one-half of the develop-ment ; the other half, irja being exactly the same as the first one, may belaid out in the same way. The part ttss is the development of the small part of the elbow. It isevident that its length, ts, must be equal to the…
Mechanical drawing · Machine design
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