Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 352
^ 1419. TUBE-ROLLING MA- I I CHINE.—The first roller turns the ) I strip of metal to a half-circle. The p-pJ 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 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. 1421. WIRE-BENDING…
Mechanical movements
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