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 90
Hand V Screw Thread make the drawing are the outside diameter AO, the pitch AC, andthe depth of the thread AK. First draw the two projections of acylinder of a diameter equal to the outside diameter of the screw.Half of the end view is sufficient. On the line AE of this cylinder MACHINE DRAWING 77… … Fig. 63. Accurate-Construction for Double V Thread cylinder KL, the diameter of which is equal to the diameter AOminus twice the depth of the thread. Now, on this smaller cylinder,starting at point H, perpendicularly under a point on the line ACwhich is half way from A to C, draw the helix L HJ…
Machinery
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