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 220
detailsof the valve, cover, seat, stem, and spring are shown assembled,and dimensioned without separation. This is an allowable methodwhen clearness is not sacrificed, but it is usually found desirableonly with simple construction. It concentrates parts on the draw-ing, and probably saves some… … 208 MACHINE DRAWING It is believed in the case of the valve as shown that the detailsare completely illustrated without sacrificing clearness. Special carein putting in dimensions is of necessity required. The valve stem can be unscrewed either with a socket wrenchon the inside or an ordinary fork…
Machinery
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