Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 350
^1419. TUBE-ROLLING MA-CHINE.—The first roUer turns the■* I strip of metal to a half-circle. TheT—J- pair of vertical rolls close up the _J tube. … 1420. SEAMLESS TUBE MAK-ING. — Rolling a solid bar between apair of angular-axled disc rollers opensa cavity within the bar w^hich 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
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