GB785836A - Improvements in or relating to welding electrode arrangements - Google Patents

Improvements in or relating to welding electrode arrangements

Info

Publication number
GB785836A
GB785836A GB2993054A GB2993054A GB785836A GB 785836 A GB785836 A GB 785836A GB 2993054 A GB2993054 A GB 2993054A GB 2993054 A GB2993054 A GB 2993054A GB 785836 A GB785836 A GB 785836A
Authority
GB
United Kingdom
Prior art keywords
electrode
mandrel
electrodes
lever
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2993054A
Inventor
Robert Humphrey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB2993054A priority Critical patent/GB785836A/en
Publication of GB785836A publication Critical patent/GB785836A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/08—Seam welding not restricted to one of the preceding subgroups
    • B23K11/093—Seam welding not restricted to one of the preceding subgroups for curved planar seams
    • B23K11/0935—Seam welding not restricted to one of the preceding subgroups for curved planar seams of tube sections

Abstract

785,836. Welding by pressure. GENERAL ELECTRIC CO., Ltd. Oct. 18, 1955 [Oct. 18, 1954], No. 29930/54. Class 83 (4). A welding electrode arrangement for use with tubes, rings, &c., comprises a mandrel carrying or forming an electrode to extend within the tube &c., a second electrode to co-operate with the first electrode, the mandrel and second electrode being rotatable one relatively to the other, and clamping means within the tube &c. for urging the tube &c. against the operative surface of the first electrode upon relative rotation of the mandrel and second electrode by relative displacement of the clamping means and first electrode whereby a continuous welding seam may be formed. A hollow cylindrical mandrel 1 rotatable in bearings 6 carries current to an electrode 2 secured thereto and to an electrode 3 secured to a bush 9 screwed to a radially gapped reduced step in the mandrel, the two electrodes being of larger diameter than the mandrel and formed by copper rings. The bush 9 also carries a hollow cvlindrical extension 10. A ring 16 of similar diameter to that of the electrodes is arranged in the gap 13 between the electrodes and is carried by a spider 17 mounted on a bearing 18 on the end of a lever 19, the arms of the spider being located in the gaps in the mandrel step so that the ring 16 rotates with the mandrel. The lever 19 is pivoted at 20 in a stationary sleeve 21 and is spring-urged into its operative position in which the ring 16 is located eccentrically of the electrodes, a hand lever 25 being provided to move the lever into inoperative position. In operation with the lever 19 in its inoperative position a pair of overlapped tubes are arranged on the mandrel, the handle 25 is operated to move the ring 16 to project beyond the electrodes and urge the tubes against the electrodes. A roller electrode 4 is spring-urged into contact with the outer tube, the mandrel is rotated by an electric motor and welding with overlapping spots of one seam commences. The electrode 4 is subsequently moved to co-operate with the other lower electrode to weld the other seam. A roller may be provided to bear on the welded seam as it leaves the electrode 4.
GB2993054A 1954-10-18 1954-10-18 Improvements in or relating to welding electrode arrangements Expired GB785836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2993054A GB785836A (en) 1954-10-18 1954-10-18 Improvements in or relating to welding electrode arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2993054A GB785836A (en) 1954-10-18 1954-10-18 Improvements in or relating to welding electrode arrangements

Publications (1)

Publication Number Publication Date
GB785836A true GB785836A (en) 1957-11-06

Family

ID=10299507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2993054A Expired GB785836A (en) 1954-10-18 1954-10-18 Improvements in or relating to welding electrode arrangements

Country Status (1)

Country Link
GB (1) GB785836A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1079241B (en) * 1958-10-29 1960-04-07 Fritz Amann Movable inner electrode for resistance welding of hollow bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1079241B (en) * 1958-10-29 1960-04-07 Fritz Amann Movable inner electrode for resistance welding of hollow bodies

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