Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 352
1419. TUBE-ROLLING MA-CHINE.—The first roller turns the5 1 strip of metal to a half-circle. Thepair of vertical rolls close up thetube. … 1420. SEAMLESS TUBE MAK-ING. — Rolling a solid bar between apair of angular-axled disc rollers opensa cavity within the bar which is furtherexpanded by a second pair of disc rollers.The rolling of the tube between the discspushes the tubular bar over a revolvingconical mandrill. 142T. WIRE-BENDING…
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
