Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 317
centiie, c. Repeat this process on each face of the bar, when a high degree of power will have becomedeveloped; so much so, that the iron or keeper p s cannot be directly pulled away without considerableforce, and in some instances cannot be conveniently removed except by sliding it off. In order… … 4g A Take a perfectly straight and even bar of steel, P S, Fig. 2680, sufficiently hard to retain a magneticstate. It may be 7 inches long, ^th of an inch wide, and -Jjth of an inch thick. Drill a clean holethrough the centre of the wide surface, and then pass an extremely fine drill also through…
Mechanical engineering · Mechanics · Engineering
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