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 (1871)
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 199
f the leg piecesis formed with a steel point at one end, and a i>en at the other;whilst the other leg has a steel point at one end, and a lead pencilat llu^ other. Ilu^ legs are jointed to the shanks by their longi-tudin^il centres, aii.l c:ui he (uriunl l.clwccii the forks, 80 as tobring into… … Fig. 12. f? Fig. 12 is the repre-sentation of a some-wliat smaller pair ofcompasses, in whiclithe pen is formed inone piece with a steelpoint, which may beinverted, or a pencil-holder introduced in-stead. This is a con-venient instrument forsmall work. Another form ofcompass is representedin figs.…
Mechanical drawing
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