The practical draughtsman's book of industrial design and machinist's and engineer's drawing companion : forming a complete course of mechanical, engineering, and architectural drawing (1863)
Armengaud, aîné (Jacques-Eugène), 1810-1891, Armengaud, Charles A., 1813-1893, Amouroux, Jules, Johnson, William, 1823-1864 · Philadelphia : H.C. Baird · leaf 198
the side ; butto prevent the point of the screw from injuring thebar, a loose plate of metal is interposed next to thebar, as shown in the section, fig. 24. The socket,m, is in a solid piece with its pen, or pencil-holder ; but the centre leg, n, is in a separatepiece from its socket, m, and is… … horizontal serew passage, or nut, to receive the screw spindle,i, which is held by an aye at the end of the socket groove,and is actuated 1-) moans of a button on the outside. By 190 THE PRACTICAL DRAUGHTSMANS turning the screw, i, in either direction, the centre leg may boadjusted with great…
Mechanical drawing
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