公开(公告)号：US2873515A

公开(公告)日：1959-02-17

申请号：US47926355

申请日：1955-01-03

Applicant: SMITH CORP A O

Inventor： WINSTROM BERTIL G

IPC: H02K15/06

CPC classification number: H02K15/066 ,  Y10T29/53143

公开(公告)号：US3582601A

公开(公告)日：1971-06-01

申请号：US3582601D

申请日：1970-01-26

Applicant: SMITH CORP A O

Inventor： WEPFER GEORGE R ,  WINSTROM BERTIL G

IPC: B23K9/02 ,  B23K9/025 ,  B23K9/18

CPC classification number: B23K9/02 ,  B23K9/0253 ,  B23K9/188

Abstract: A submerged arc-welding process performed on adjacent longitudinal edges of a pipe blank. Two submerged arc-welding units are supported on carriages which move on a stationary travel beam over the pipe blank. The welding units start welding at opposite ends of the longitudinal edges and weld toward each other until they meet. At that time one welding unit stops and returns while the second continues forward to overlap the welds while the fused flux remains electrically conductive at the area of overlap. After the second unit merges the welds, it returns.

公开(公告)号：US3309733A

公开(公告)日：1967-03-21

申请号：US38252664

申请日：1964-07-14

Applicant: SMITH CORP A O

Inventor： WINSTROM BERTIL G

IPC: B22F9/08

CPC classification number: B22F9/082 ,  Y10S425/815

公开(公告)号：US2692159A

公开(公告)日：1954-10-19

申请号：US29281252

申请日：1952-06-11

Applicant: SMITH CORP A O

Inventor： CROSWELL ALTHOS M ,  WINSTROM BERTIL G

IPC: B66C1/42 ,  F16L1/10

CPC classification number: B66C1/422 ,  F16L1/10

公开(公告)号：US2353526A

公开(公告)日：1944-07-11

申请号：US39879641

申请日：1941-06-19

Applicant: SMITH CORP A O

Inventor： TIEDEMANN JULIUS B ,  WINSTROM BERTIL G

IPC: B21J13/12

CPC classification number: B21J13/12

公开(公告)号：US3682722A

公开(公告)日：1972-08-08

申请号：US3682722D

申请日：1970-03-23

Applicant: SMITH CORP A O

Inventor： WINSTROM BERTIL G

IPC: C21D9/08

CPC classification number: C21D9/085

Abstract: A METAL PIPE IS SUSPENDED FROM A TOWER BY A HANGER STEM FOR BEING OPERATED ON WITH A QUENCHING PROCESS. AFTER FIRST BEIG HEATED, THE PIPE IS LOWERED TO A QUENCHING ASSEMBLY WHERE ROTATING STREAMS OF CONCENTRATED, HIGH PRESSURE QUENCH FLUID IS APPLIED TO BOTH SURFACES OF THE PIPE SIMULTANEOUSLY. THE ROTATING STREAMS ARE PROVIDED BY CONCENTRIC INNER AND OUTER ROTARY QUENCH HEADS, BETWEEN WHICH THE PIPE TELECSCOPES. THE INNER HEAD IS OPERABLY SUPPORTED IN A WELL BY AN INNER STEM, WHICH HAS A SHELL BENEATH THE QUENCH HEAD.THE SHELL IS ENGAGED BY A GUIDE ARM ASSEMBLY TO CENTER THE STEM AND INNER QUENCH HEAD WITHIN THE WELL. WHEN THE PIPE IS LOWERED TO THE LEVEL OF THE GUIDE ASSEMBLY, THE GUIDE ASSEMBLY DISENGAGES THE SHELL AND GUIDES THE PIPE TO CENTER IT BETWEEN THE QUENCH HEADS.

公开(公告)号：US3339395A

公开(公告)日：1967-09-05

申请号：US34519464

申请日：1964-02-17

Applicant: SMITH CORP A O

Inventor： WINSTROM BERTIL G

IPC: B21C35/00 ,  B21C35/02

CPC classification number: B21C35/00 ,  B21C35/02

公开(公告)号：US3181334A

公开(公告)日：1965-05-04

申请号：US18013262

申请日：1962-03-16

Applicant: SMITH CORP A O

Inventor： MATTSON RICHARD E ,  WINSTROM BERTIL G

IPC: B21C35/02

CPC classification number: B21C35/02