GB437404A - Improvements in and relating to electric welding apparatus - Google Patents

Improvements in and relating to electric welding apparatus

Info

Publication number
GB437404A
GB437404A GB35213/34A GB3521334A GB437404A GB 437404 A GB437404 A GB 437404A GB 35213/34 A GB35213/34 A GB 35213/34A GB 3521334 A GB3521334 A GB 3521334A GB 437404 A GB437404 A GB 437404A
Authority
GB
United Kingdom
Prior art keywords
welding
dec
relating
transformer
welding apparatus
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
GB35213/34A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB437404A publication Critical patent/GB437404A/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
    • B23K11/24—Electric supply or control circuits therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

437,404. Control and switching systems for resistance welding. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 7, 1934, No. 35213. Convention date, Dec. 8, 1933. Drawings to Specification. [Class 38 (iv)] In electric spot-welding employing a welding transformer, the current is controlled by a single grid-controlled arc discharge valve connected in the lead to the primary of the transformer and the grid control is so set that it commences to pass current only when the anode alternating voltage is between the 70 and 90‹ phase angles. Specification 387,714 is referred to.
GB35213/34A 1933-12-08 1934-12-07 Improvements in and relating to electric welding apparatus Expired GB437404A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE437404X 1933-12-08

Publications (1)

Publication Number Publication Date
GB437404A true GB437404A (en) 1935-10-29

Family

ID=6507023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35213/34A Expired GB437404A (en) 1933-12-08 1934-12-07 Improvements in and relating to electric welding apparatus

Country Status (1)

Country Link
GB (1) GB437404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741926C (en) * 1938-06-16 1953-02-09 Siemens Schuckertwerke A G Ber Spot or spot welding device with controllable gas or vapor discharge sections as a switch for the welding current

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741926C (en) * 1938-06-16 1953-02-09 Siemens Schuckertwerke A G Ber Spot or spot welding device with controllable gas or vapor discharge sections as a switch for the welding current

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