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 (1920)
Griffin, Charles Lewis, 1867- [from old catalog], Adams, Charles Clyde, 1882- [from old catalog] joint author · Chicago, American technical society · leaf 87
Fig. 56. Accurate Diagram for Helical Spring of Round Wire have the same pitch, equal to AB for, since the square BDPN isthe same as ACML, the distance CD is the same as AB; and sincethe points L, M, N, and P are vertically under A, C, B, and D, 74 MACHINE DRAWING respectively, the distance LN is… … £ F 6 Fig. 57. Accurate Construction for Helical Spring of Square Wire 52; and the helix CGD, having the same diameter as AFB, is drawnby dividing circle IE and pitch CD. The helix LHN has a diameterequal to that of the circle KR, which is IE minus twice the thicknessof the wire, and is drawn by…
Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
