Machine drawing; a practical guide to the standard methods of graphical representation of machines, including complete detail drawings of a duplex pump and of a direct-current generator (1914)
Griffin, Charles Lewis, 1867-, Adams, Charles Clyde, 1882- joint author · Chicago, American technical society · leaf 93
Fig. 69. Lag ScrewV Thread Fig. 70. Variation ofSquare Thread the Sellers or United States standard thread, an enlarged drawingof which is shown in Fig. 71. Referring to this figure, we see that 80 MACHINE DRAWING D~fM> or PITCH A = g OF D … Fig. 71. Enlarged U. 6.Standard Thread the angle between the two sides of the thread is 60°, so that if thethread came to a point at the top and bottom, as indicated by thedotted lines, the depth of the thread D would be about TVo of the pitch P. The sharp corners, however, are adisadvantage, since…
Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
