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Expired
Application number
GB1415/28A
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Individual
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Individual
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Publication of GB285897ApublicationCriticalpatent/GB285897A/en
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
B21B19/12—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially parallel to the axis of the work
B21B19/14—Rolling tubes by means of additional rollers arranged inside the tubes
Abstract
285,897. Roeckner, M. Feb. 25, 1927, [Convention date]. Rolling annular bodies; skew-rolling.-A mill for rolling tubes from hollow metal blocks A and having coacting internal and external rolls, e.g. as described in Specification 243.280. has the first pair B of the rolls provided with rib-like projec. tions F, at their entrance ends to assist in advancing the work through the rolls.