Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 23
by applying a thiu coating of copper sulphate solution with a brush or a i>iece of waste. Thework and gauge are then placed on a true sui-face and the scriberadjusted to the desired height. The line is drawn by moving thesiurface gauge along on the true surface, keeping the point in con-tact… … & MACHLNE SHOJe VVOKK- The straight edge consists, in its simplest form, of a thinflat piece of sled, yvucniUy unliardenca, with accurately finishedstraight edges. The very small sizes Used in line work are some-times made witli a iinnleiied knife edge. A non-coiuhicting handle is so7netimes…
Mechanical engineering
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