GB408431A - Improvements in and relating to electric welding machines - Google Patents

Improvements in and relating to electric welding machines

Info

Publication number
GB408431A
GB408431A GB4956/33A GB495633A GB408431A GB 408431 A GB408431 A GB 408431A GB 4956/33 A GB4956/33 A GB 4956/33A GB 495633 A GB495633 A GB 495633A GB 408431 A GB408431 A GB 408431A
Authority
GB
United Kingdom
Prior art keywords
relay
primary
welding
feb
coils
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
GB4956/33A
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
Original Assignee
General Electric Co
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 filed Critical General Electric Co
Publication of GB408431A publication Critical patent/GB408431A/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
    • B23K11/25—Monitoring devices
    • B23K11/251—Monitoring devices using analog means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

408,431. Electric resistance &c. welding. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats- Ges. ; 2, Friedrich-Karl Ufer, Berlin.) Feb. 17, 1933, No. 4956. Convention date, Feb. 18, 1932. [Class 39 (iii).] In butt flash welding wherein a relay is provided for stopping or reversing the drive or in resistance welding wherein a relay is provided for switching off the current the relay 7 is arranged in a circuit influenced by mutually opposed voltages derived from fixed tappings on the primary 1 and from the secondary 3 of the transformer. The primary and secondary sides may be coupled inductively by coils 5, 6 and the relay 7 may be in the primary or secondary side. The coils 5, 6 may be arranged on the main transformer core. The inductive coupling 5, 6 may be replaced by a capacity or direct coupling.
GB4956/33A 1932-02-18 1933-02-17 Improvements in and relating to electric welding machines Expired GB408431A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE408431X 1932-02-18

Publications (1)

Publication Number Publication Date
GB408431A true GB408431A (en) 1934-04-12

Family

ID=6422293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4956/33A Expired GB408431A (en) 1932-02-18 1933-02-17 Improvements in and relating to electric welding machines

Country Status (1)

Country Link
GB (1) GB408431A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438490A (en) * 1942-07-31 1948-03-30 Int Standard Electric Corp Welding control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438490A (en) * 1942-07-31 1948-03-30 Int Standard Electric Corp Welding control system

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