Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 585
y ofthe fibres, which cross the bar in the direction of a helix, instead of the mere adhesion of the fibrestogether; and when used for the rails of railroads, or similar purposes, none of the fibres can be sepa-rated from the mass longitudinally, as heretofore, nor can the iron be stripped off in… … Of the machinery for working iron in accordance ivith the foregoing process.—In the accompanyingdrawings a represents a frame properly adapted to the purpose, and b b two grooved rollers, such as areused in rolling-mills for rolling bars of iron—the groove in each being semicircular, or nearly so.…
Mechanical engineering
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