Notes on practical mechanical drawing, written for the use of the students in general engineering drawing in the University of Illinois (1907)
Wilson, Victor Tyson, 1864- [from old catalog] · State College, Pa., The author · leaf 126
= D —— There are other forms of thread occasionally usedbesides the V and square thread. The buttress thread, for Working Drawings 117 example, is shown in Fig. 33. It is used where the screw isa transmitter of power in one direction, or where it is usedto resist force in one direction. It may here… … t--p-*i KKri_nIh ^ even for the latter reason alone, it may have a double threador a triple thread. Thus, for one revolution of the screw itwill travel axially two times the pitch, or three times thepitch, etc. An illustration of a screw with steep pitch, togive relatively large axial motion, is…
Mechanical drawing
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