GB482472A - Improvements in or relating to electric spot welding machines - Google Patents

Improvements in or relating to electric spot welding machines

Info

Publication number
GB482472A
GB482472A GB3432936A GB3432936A GB482472A GB 482472 A GB482472 A GB 482472A GB 3432936 A GB3432936 A GB 3432936A GB 3432936 A GB3432936 A GB 3432936A GB 482472 A GB482472 A GB 482472A
Authority
GB
United Kingdom
Prior art keywords
shield
pedal
work
levers
rod
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
GB3432936A
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.)
GEORGE HENDERSON TAYLOR
STANLEY CRAWSHAW
Metropolitan Vickers Electrical Co Ltd
Original Assignee
GEORGE HENDERSON TAYLOR
STANLEY CRAWSHAW
Metropolitan Vickers Electrical 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 GEORGE HENDERSON TAYLOR, STANLEY CRAWSHAW, Metropolitan Vickers Electrical Co Ltd filed Critical GEORGE HENDERSON TAYLOR
Priority to GB3432936A priority Critical patent/GB482472A/en
Publication of GB482472A publication Critical patent/GB482472A/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
    • B23K11/30—Features relating to electrodes
    • B23K11/31—Electrode holders and actuating devices therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)
  • Arc Welding In General (AREA)

Abstract

482,472. Electric welding ; machinery guards. TAYLOR, G. H., CRAWSHAW, S., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Dec. 14, 1936, No. 34329. [Class 83 (iv)] [Also in Group XXIV] An electric spot welding machine of the lever or pedal operated type, has combined therewith a shield surrounding one of the electrodes and carried by operating mechanism linked to the pedal &c. so that further movement of the pedal to apply welding pressure after the electrodes have been brought into contact with the work actuates the shield to move it from a position in which the work is visible to a position tin proximity to or in contact with the work so as to prevent sparks from flying in undesirable directions. The shield together with its operating mechanism may be applied to existing welding machines. The movable electrode 5 is carried by a lever 6 pivoted at 7 and having a pair of rear arms 9 engaging pins 11 on a guide member 12 for a rod 13 and operated by a pedal 15 through a spring 19 pressing on a collar 17 connected bv links 16 to the arms 9. The lever 6 is returned by a weaker spring 19a. To the electrode 5 is secured the crown portion 23 of a flexible shield of leather or other non- inflammable material, the skirt portion 22 of which is carried by rods 24 connected to a frame member 27 adjustably mounted by slots 33 and nuts 32 on a pair of levers 29 pivoted at 30 on supports 31. The rod 13 has secured thereon a stop collar 20 and also a crossbar 37, which latter is provided with rods 35 passing loosely through ears 84 carried by the levers 29 and carrying springs 38 and adjusting nuts 39. On pressing the pedal the rod 13 is moved to cause the electrode 5 to engage the work and at the same time through the crossbar 37, the shield is lowered an amount so as still to leave the work exposed. On further pressure of the pedal the welding pressure is applied by compression of the spring 19 and at the same time the rod 13 operates the levers 29 through the cross-bar 37 to bring down the shield into proximity or contact with the work. The levers 29 engage adjustable stops 41 to limit the lowest position of the shield and the initial and intermediate positions are varied by adjustment of the nuts 39.
GB3432936A 1936-12-14 1936-12-14 Improvements in or relating to electric spot welding machines Expired GB482472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3432936A GB482472A (en) 1936-12-14 1936-12-14 Improvements in or relating to electric spot welding machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3432936A GB482472A (en) 1936-12-14 1936-12-14 Improvements in or relating to electric spot welding machines

Publications (1)

Publication Number Publication Date
GB482472A true GB482472A (en) 1938-03-30

Family

ID=10364282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3432936A Expired GB482472A (en) 1936-12-14 1936-12-14 Improvements in or relating to electric spot welding machines

Country Status (1)

Country Link
GB (1) GB482472A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434025A (en) * 1945-01-22 1948-01-06 A F Parmalee Electrode protector for welding machines
US3307012A (en) * 1966-04-11 1967-02-28 Mattel Inc Miniature spotwelder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434025A (en) * 1945-01-22 1948-01-06 A F Parmalee Electrode protector for welding machines
US3307012A (en) * 1966-04-11 1967-02-28 Mattel Inc Miniature spotwelder

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