Crawshaw, Fred D. (Fred Duane), b. 1874, Phillips, J. D. (James David), 1869- joint author · Chicago, New York, Scott, Foresman and company · leaf 260
ad. Conven-tional Representation for Small Sizes (254) Fig. 288. Acme Thread. Con-ventional Representation ADVANCED DRAWING 255 Pipe Thread. The basic form of the Briggs standard pipethread is that of the V-thread. This thread is rounded slightly.at the outer and inner edges. A modified form m… … Fig. 289. Pipe Threads. Conventional Representation The threaded portion of the pipe tapers one thirty-secondof an inch in radius for each inch of length. Pipe threads are represented conventionally as shown inFig. 289. Springs. The curve of the coil spring is the helix. Fig. 290shows a spring in…
Mechanical drawing
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