A course in mechanical drawing for evening schools and self-instruction (1896)
Rouillion, Louis · Boston, New York, The Prang educational company · leaf 65
56 COURSE IN MECHANICAL DRAWING. SHEET XXII. Five-inch Clamp. In long screw-threading, considerable time may be of the clamp. The necessity for an end view is saved by drawing the threads at the beginning and obviated by showing in section such construction of ending only. This practice is shown on… … 58 COURSE IN MECHANICAL DRAWING. SHEET XXIII. Monkey Wrench. The pitch of the thread is here given in a note onthe drawing as Pitch-n; it might be abbreviatedto read P-ii. If the thread is a left-handed one,it is so noted on the drawing, otherwise it is under-stood to be right-handed. A…
Mechanical drawing
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