GB1243521A - Improvements relating to sealing tube ends - Google Patents
Improvements relating to sealing tube endsInfo
- Publication number
- GB1243521A GB1243521A GB50265/68A GB5026568A GB1243521A GB 1243521 A GB1243521 A GB 1243521A GB 50265/68 A GB50265/68 A GB 50265/68A GB 5026568 A GB5026568 A GB 5026568A GB 1243521 A GB1243521 A GB 1243521A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- gas
- forming coil
- plug
- turret
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66223—Details relating to the sealing of vacuum switch housings
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
1,243,521. Pipes and tubes. A. REYROLLE & CO. Ltd. 12 Feb., 1970 [13 Nov., 1968], No. 50265/68. Heading F2P. [Also in Divisions B3 and H1] A method of sealing the end of a tube 10 connected to a vessel 12 comprises inserting a plug 27 in the end of the tube within an enclusure 20 and necking the tube on to the plug by a process controlled from outside the enclosure. The exhaust tube of a vacuum switch, Fig. 1 (not shown), may be sealed or the filling tube of a bottle containing air or other gas under pressure, e.g. a switch bottle containing SF 6 gas. Apparatus for performing the method may have an electromagnetic forming coil for each of the vessels in the enclosure, capacitor banks being discharged simultaneously or in succession through the coils. As shown, the apparatus has a single forming coil 28 and the vessels 12 are indexed beneath the coil on a turntable 21. With the chamber 20 housed in an oven to ensure de-gassing, it is evacuated by a pump. Atop the chamber 20 is an indexable turret 23 containing hydraulic rams 24 which carry the plugs 27. After the forming coil 28 has been lowered, the aligned ram inserts a plug 27 and holds it in position during the necking operation. The ram and forming coil are then retracted and the turntable 21 and turret 23 indexed for sealing the next vessel. Instead of hydraulic rams 24, a solenoid may attract the plugs 27 out of a magazine in the turret and hold them in position. If the switch bottles are to be gas-filled, a lower degree of evacuation is used and a lower temperature for removing moisture. After cooling, SF 6 gas is introduced under pressure. The necking operation may be performed hydraulically or mechanically.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB50265/68A GB1243521A (en) | 1968-11-13 | 1968-11-13 | Improvements relating to sealing tube ends |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB50265/68A GB1243521A (en) | 1968-11-13 | 1968-11-13 | Improvements relating to sealing tube ends |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1243521A true GB1243521A (en) | 1971-08-18 |
Family
ID=10455287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50265/68A Expired GB1243521A (en) | 1968-11-13 | 1968-11-13 | Improvements relating to sealing tube ends |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1243521A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112873696A (en) * | 2019-03-13 | 2021-06-01 | 浙江厚达智能科技股份有限公司 | Hydraulic punch assembly for punching injection-molded medicine bag |
-
1968
- 1968-11-13 GB GB50265/68A patent/GB1243521A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112873696A (en) * | 2019-03-13 | 2021-06-01 | 浙江厚达智能科技股份有限公司 | Hydraulic punch assembly for punching injection-molded medicine bag |
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