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GB659162A - Improvements in or relating to bolt or like welding tools - Google Patents

Improvements in or relating to bolt or like welding tools

Info

Publication number
GB659162A
GB659162A GB1481749A GB1481749A GB659162A GB 659162 A GB659162 A GB 659162A GB 1481749 A GB1481749 A GB 1481749A GB 1481749 A GB1481749 A GB 1481749A GB 659162 A GB659162 A GB 659162A
Authority
GB
United Kingdom
Prior art keywords
piston
bolt
cam
chamber
spring
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
GB1481749A
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.)
WALTER GUSTAFSON
ABB Norden Holding AB
Original Assignee
WALTER GUSTAFSON
ASEA AB
Allmanna Svenska Elektriska AB
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 WALTER GUSTAFSON, ASEA AB, Allmanna Svenska Elektriska AB filed Critical WALTER GUSTAFSON
Priority to GB1481749A priority Critical patent/GB659162A/en
Publication of GB659162A publication Critical patent/GB659162A/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
    • B23K9/00—Arc welding or cutting
    • B23K9/20—Stud welding
    • B23K9/205—Means for determining, controlling or regulating the arc interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

659,162. Electric welding. GUSTAFSON, W., and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. June 2, 1949, No. 14817. [Class 83 (iv)] A compressed air operated bolt welding tool having three support legs 20, and in which the bolt is moved away from the structure for initiating a welding arc, is characterized by two interengaging pistons 4, 6, the piston 6 being integral with the bolt clamp 7, adjustment of the pistons being accomplished by enclosing oil in a chamber 17 between the pistons so that they form a rigid unit, the length of which is shorter than the distance between the structure and an adjustable stop means by an amount equal to the welding arc gap. Compressed air enters the tool through channel 1 and moves a transverse piston 10 against a spring 23 so that a cam 19 on a cover 12 attached to piston 4 is depressed against the action of a spring 18 by being forced out of a groove 9 in the piston 10. The air also flows through channels 2 and 3 and pushes piston 6 against the shoulder 6a. Piston 4 after its initial movement due to cam 19 is prevented from moving further by the spring 18. The air also enters channels 11 and operates a valve pin 13 which opens a ball valve 15 so that chamber 17 fills with oil from chamber 16. With a bolt inserted in the clamp 7 and the tool in position the compressed air supply is cut off and the channel 1 connected to atmosphere by operating means 21. The ball valve 15 retains the oil in chamber 17 so forming an incompressible junction between the bolt and the cam 19. The piston 10 returns to its initial position and a spring 24 forces the cam 19 into the groove 9 of the piston 10 so that the bolt is moved away from the structure a distance equal to the depth of the groove 9 and an arc is now initiated. The groove 9 can be arranged eccentric so that by rotating the piston 10 the arc-forming movement of the bolt can be adjusted. The compressed air is allowed to re-enter the channel 1 whereupon the bolt is pressed against the structure and fused in position.
GB1481749A 1949-06-02 1949-06-02 Improvements in or relating to bolt or like welding tools Expired GB659162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1481749A GB659162A (en) 1949-06-02 1949-06-02 Improvements in or relating to bolt or like welding tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1481749A GB659162A (en) 1949-06-02 1949-06-02 Improvements in or relating to bolt or like welding tools

Publications (1)

Publication Number Publication Date
GB659162A true GB659162A (en) 1951-10-17

Family

ID=10048005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1481749A Expired GB659162A (en) 1949-06-02 1949-06-02 Improvements in or relating to bolt or like welding tools

Country Status (1)

Country Link
GB (1) GB659162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305145A (en) * 1995-09-12 1997-04-02 Safetrack Baavhammar Ab Pin brazing gun

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305145A (en) * 1995-09-12 1997-04-02 Safetrack Baavhammar Ab Pin brazing gun
GB2305145B (en) * 1995-09-12 1999-03-17 Safetrack Baavhammar Ab Pin brazing gun

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