GB575464A - Improvements relating to welding electrode holders - Google Patents
Improvements relating to welding electrode holdersInfo
- Publication number
- GB575464A GB575464A GB5063/44A GB506344A GB575464A GB 575464 A GB575464 A GB 575464A GB 5063/44 A GB5063/44 A GB 5063/44A GB 506344 A GB506344 A GB 506344A GB 575464 A GB575464 A GB 575464A
- Authority
- GB
- United Kingdom
- Prior art keywords
- holder
- electrode
- plunger
- liquid
- tube
- 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
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
- B23K11/3009—Pressure electrodes
- B23K11/3018—Cooled pressure electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
575,464. Welding. MALLORY METALLURGICAL PRODUCTS, Ltd. March 18, 1944, No. 5063. Convention date, March 18, 1943. [Class 83 (iv)] An electrode holder of the ejector type for a resistance welding machine and comprising a tapered socket for the electrode tip with the interior substantially filled with liquid, has the electrode removed from the holder by applying hydrostatic pressure to the liquid. Electrodes may thus be ejected from a holder of odd shapes such as those having a bend or offset or a holder comprising the welding arm itself. A recessed electrode 13 may be fitted in a tapered socket of a holder 10, the larger bore of which contains water inlet and outlet valves 16, 17. Such bore contains a plunger 18 provided with a telescopic tube 25, 26 entering the recess 15, transverse and axial bores 23, 24 and an end 19 projecting through the rear end of the holder. Leakage of liquid round the plunger is prevented by packing rings 20, 27. The plunger may be provided with a perforated stop sleeve 28 of metal or rubber. The diameter of the plunger is sufficiently less than the bore of the holder in the vicinity of the passage 23 to permit water circulation round the plunger at this point. During normal operation the passage 23 is aligned with the passage of the valve 16 so that the cooling water is circulated therethrough. In order to remove the electrode 13, the valves 16, 17 are closed to isolate a volume of liquid in the holder and the projecting end of the plunger 18 struck, thereby applying hydrostatic pressure to the liquid contained therein to drive out the electrode. If desired, a cloth or container may be placed over the end of the electrode and holder to catch the electrode and some of the liquid. In a modification, the tube 25 is replaced by a tube 42, Fig. 3, having a flexible rubber or metal section 43 to convey liquid round the bend in the holder. In a further form having a holder with an offset end, the tube 25, 26 is also replaced by a tube 35, Fig. 2, having an end section 36 of rubber or other flexible material so as to convey liquid round the bends in the passage 37. The plunger may be returned by a spring 38 between the end thereof and a sleeve 39 resting against a shoulder inside the holder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5063/44A GB575464A (en) | 1944-03-18 | 1944-03-18 | Improvements relating to welding electrode holders |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5063/44A GB575464A (en) | 1944-03-18 | 1944-03-18 | Improvements relating to welding electrode holders |
Publications (1)
Publication Number | Publication Date |
---|---|
GB575464A true GB575464A (en) | 1946-02-19 |
Family
ID=22011251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5063/44A Expired GB575464A (en) | 1944-03-18 | 1944-03-18 | Improvements relating to welding electrode holders |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB575464A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403154A1 (en) * | 1977-09-14 | 1979-04-13 | Humblot Bernard | Reducing consumption of cooling water on resistance welders - using automatic valve so water only flows during welding cycle |
-
1944
- 1944-03-18 GB GB5063/44A patent/GB575464A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403154A1 (en) * | 1977-09-14 | 1979-04-13 | Humblot Bernard | Reducing consumption of cooling water on resistance welders - using automatic valve so water only flows during welding cycle |
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