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 83

An illustration from 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, leaf 83 — HINE DRAWING HELIX Development of Helix. Since most coil springs and all screwthreads depend upon a curve known as a helix, it will be necessaryto know what a helix is, and how it can be drawn, before taking upthe construction of springs and screws. Suppose we take a cylindrical piece of wood, such…

Machinery

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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)

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