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 (1866)
Armengaud, Charles A., 1813-1893, Armengaud, Charles, 1813-1893, [from old catalog] joint author, Amouroux, Jules, [from old catalog] joint author, Johnson, William, 1823-1864. [from old catalog] · Philadelphia, H. C. Baird · leaf 196
BOOK OF INDUSTRIAL DESIGN. 187 Anes riveted together. The better kind have a steel pin passedthrough the leaves of the joint, upon which a flat brass or other Fig. 6. Fig. 7. … metal nut is passed, at the further side. This nut has two smallholes upon its face, for the introduction of the points of a turn-screw, to be met with in mo.st sets of instruments. The joint-leaf of one leg of a pair of compasses is usually of steel, as thisarrangement gives a smoother action than…
Mechanical drawing
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