Forming and solid-phase bonding

Claim 1

THE METHOD OF FORMING SEAMED CYLINDRICAL METAL PRODUCTS COMPRISING MOVING A PAIR OF ADJACENTLY POSITIONED SUBSTANTIALLY FLAT MALLEABLE COMPLETELY SOLID METAL STRIPS AND AN INTERPOSED SUBSTANTIALLY SMOOTH CYLINDRICAL COMPLETELY SOLID ROD, ALL OF WHICH ARE PROPERLY CLEANED FOR SOLID-PHASE BONDING IN SAID SOLID STATE, MOVEMENT BEING DIRECTED INTO REGIONS BETWEEN OPPOSING LANDS OF ROLLS EACH HAVING AT LEAST TWO PINCH-FORMING LANDS FLANKING A CYLINDER-FORMING GROOVE CONJUGATE TO A LIKE GROOVE IN THE OTHER, SQUEEZING THE STRIPS TOGETHER IN SAID SOLID STATE ON OPPOSITE SIDES OF THE ROD AND IN THE PINCHES WITH REDUCTION OF THE STRIPS ON THE ROD AND REDUCTIONS IN THE THICKNESSES OF THE STRIPS ALONG TWO SPACED STRIPES IN EACH TO EFFECT PARTIAL SOLID-PHASE BONDS BETWEEN THE STRIPS AND THE ROD AND ALSO ALONG SAID STRIPES AND THEREAFTER SINTERING THE PARTIALLY BONDED STRIPS AND ROD BY HEATING IN SAID SOLID STATE TO IMPROVE THE BONDS BETWEEN THE ROD AND THE STRIPS AND BETWEEN THE STRIPS ALONG SAID STRIPES.

Claim 2

THE METHOD OF FORMING SEAMED CYLINDRICAL METAL PRODUCTS COMPRISING MOVING A PAIR OF ADJACENTLY POSITIONED SUBSTANTIALLY FLAT MALLEABLE COMPLETELY SOLID METAL STRIPS AND AN INTERPOSED SUBSTANTIALLY SMOOTH CYLINDRICAL COMPLETELY SOLID ROD, ALL OF WHICH ARE PROPERLY CLEANED FOR SOLID-PHASE BONDING IN SAID SOLID STATE, MOVEMENT BEING DIRECTED INTO REGIONS BETWEEN OPPOSING LANDS OF ROLLS EACH HAVING AT LEAST TWO PINCH-FORMING LANDS FLANKING A CYLINDER-FORMING GROOVE CONJUGATE TO A LIKE GROOVE IN THE OTHER, SQUEEZING THE STRIPS TOGETHER IN SAID SOLID STATE ON OPPOSITE SIDES OF THE ROD AND IN THE PINCHES WITH REDUCTION OF THE STRIPS ON THE ROD AND REDUCTIONS IN THE THICKNESSES OF THE STRIPS ALONG TWO SPACED STRIPES IN EACH TO EFFECT PARTIAL SOLID-PHASE BONDS BETWEEN THE STRIPS AND THE ROD AND ALSO ALONG SAID STRIPES AND THEREAFTER SINTERING THE PARTIALLY BONDED STRIPS AND ROD BY HEATING IN SAID SOLID STATE TO IMPROVE THE BONDS BETWEEN THE ROD AND THE STRIPS AND BETWEEN THE STRIPS ALONG SAID STRIPES.

Claim 3

THE METHOD OF FORMING SEAMED CYLINDRICAL METAL PRODUCTS COMPRISING MOVING THROUGH GUIDES A PAIR OF ADJACENTLY POSITIONED SUBSTANTIALLY FLAT MALLEABLE SOLID METAL STRIPS WHICH ARE PROPERLY CLEANED ON OPPOSITE FACES FOR SOLID-PHASE BONDING IN SAID SOLID STATE, MOVEMENT BEING DIRECTED INTO PINCH REGIONS BETWEEN OPPOSING LANDS OF ADJACENT ROLLS EACH HAVING AT LEAST TWO LANDS FLANKING A CYLINDRR-FORMING GROOVE CONJUGATE TO A LIKE GROOVE IN THE OTHER, MOVEMENT FROM THE GUIDES TO THE PINCH REGIONS BEING DIRECTED ALONG OPPOSITE SIDES OF AN ARBOR WHICH EXTENDS TOWARD THE SPACE FORMED BY THE CONJUGATE GROOVES, SAID ARBOR BEING SUBSTANTIALLY SMALLER THAN THE INSIDE SURFACE OF THE BONDED CYLINDRICAL PRODUCT TO PRECURVE THE STRIPS IN THE GROOVES RESPECTIVELY, SQUEEZING THE STRIPS TOGETHER IN SAID SOLID STATE IN THE PINCH REGIONS WITH REDUCTIONS IN THE THICKNESSES OF THE STRIPS ALONG TWO SPACED STRIPES IN EACH TO EFFECT ARTIAL SOLID-PHASE BONDS ALONG SAID STRIPES AND TO SQUEEZE A SUFFICIENT AMOUNT OF SAID PRECURVED MATERIAL INTO THE GROOVES FOR COMPLETING SUBSTANTIAL CONFORMATION OF THE STRIPS TO THE SHAPES OF THE GROOVES TO FORM A COMPLETE CYLINDER CONFORMING EXTERIORLY SUBSTANTIALLY TO THE SHAPE OF THE CONJUGATE GROOVES AND THEREAFTER SINTERING THE PARTIALLY BONDED STRIPS BY HEATING IN SAID SOLID STATE TO IMPROVE THE BONDS ALONG THE STRIPES.

Claim 4

THE METHOD OF FORMING SEAMED CYLINDRICAL METAL PRODUCTS COMPRISING MOVING THROUGH GUIDES A PAIR OF ADJACENTLY POSITIONED SUBSTANTIALLY FLAT MALLEABLE SOLID METAL STRIPS WHICH ARE PROPERLY CLEANED ON OPPOSITE FACES FOR SOLID-PHASE BONDING IN SAID SOLID STATE, MOVEMENT BEING DIRECTED INTO PINCH REGIONS BETWEEN OPPOSING LANDS OF ADJACENT ROLLS EACH HAVING AT LEAST TWO LANDS FLANKING A CYLINDRR-FORMING GROOVE CONJUGATE TO A LIKE GROOVE IN THE OTHER, MOVEMENT FROM THE GUIDES TO THE PINCH REGIONS BEING DIRECTED ALONG OPPOSITE SIDES OF AN ARBOR WHICH EXTENDS TOWARD THE SPACE FORMED BY THE CONJUGATE GROOVES, SAID ARBOR BEING SUBSTANTIALLY SMALLER THAN THE INSIDE SURFACE OF THE BONDED CYLINDRICAL PRODUCT TO PRECURVE THE STRIPS IN THE GROOVES RESPECTIVELY, SQUEEZING THE STRIPS TOGETHER IN SAID SOLID STATE IN THE PINCH REGIONS WITH REDUCTIONS IN THE THICKNESSES OF THE STRIPS ALONG TWO SPACED STRIPES IN EACH TO EFFECT ARTIAL SOLID-PHASE BONDS ALONG SAID STRIPES AND TO SQUEEZE A SUFFICIENT AMOUNT OF SAID PRECURVED MATERIAL INTO THE GROOVES FOR COMPLETING SUBSTANTIAL CONFORMATION OF THE STRIPS TO THE SHAPES OF THE GROOVES TO FORM A COMPLETE CYLINDER CONFORMING EXTERIORLY SUBSTANTIALLY TO THE SHAPE OF THE CONJUGATE GROOVES AND THEREAFTER SINTERING THE PARTIALLY BONDED STRIPS BY HEATING IN SAID SOLID STATE TO IMPROVE THE BONDS ALONG THE STRIPES.