Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 166
instead of between the lines. This can be conveniently done, when a number of diagramsare to be used, by laying off the spaces on a piece of card-board shaped like A, Fig. 2395, made alittle longer than the average length of the diagrams, so that it may be conveniently applied betweenthe lines B C… … drawn from the same parallel to those at the end. Ten points may be similarly arranged in a pieceof wood, and all pricked into the paper at one time. The multiple parallel ruler, shown in two posi-tions in Figs. 2396 and 2397, is furnished by the Messrs. Elliott Brothers with the Richards…
Mechanical engineering -- Dictionaries
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