GB475246A - Improvements in or relating to electric gas blast switches - Google Patents
Improvements in or relating to electric gas blast switchesInfo
- Publication number
- GB475246A GB475246A GB7895/37A GB789537A GB475246A GB 475246 A GB475246 A GB 475246A GB 7895/37 A GB7895/37 A GB 7895/37A GB 789537 A GB789537 A GB 789537A GB 475246 A GB475246 A GB 475246A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- contact
- movement
- space
- gas
- 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
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/057—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices being entrained discrete elements, e.g. balls, grinding elements, brushes
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Circuit Breakers (AREA)
Abstract
475,246. Gas-blast switches. STRAUSS, (nÚe RUPPEL), F. March 17, 1937, No. 7895. Convention date, March 19, 1936. [Class 38 (v)] In a gas-blast switch in which the arc is extinguished by gases generated by the heat of the arc, and in which the separation of the contacts takes place in a closed space 8 which is opened by means of the movable contact 1 during the switching - off movement, the space is provided with a piston 3 under the control of a spring 4 tending to reduce the volume of the space, the movement of the piston being independent of the movement of the movable contact. In one construction, Fig. 1, the contact 1 passes through a tube 6 of gas-yielding material, and the piston 3 constitutes the other contact of the switch ; closure of the switch compresses the spring 4. On switching off, the contact 1 moves upwards more quickly than the piston, the movement of the latter being restrained by the pressure developed in the space 8 until the contact 1 has moved out of the tube 6. In a modification, Fig. 2, the contact 1 is tubular and surrounds a pin 7, preferably of gasyielding material, connected to the piston. In another construction, Fig. 3 (not shown), the piston slides on the filling pin, which is stationary.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE475246X | 1936-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB475246A true GB475246A (en) | 1937-11-16 |
Family
ID=6541822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7895/37A Expired GB475246A (en) | 1936-03-19 | 1937-03-17 | Improvements in or relating to electric gas blast switches |
Country Status (2)
| Country | Link |
|---|---|
| FR (2) | FR475246A (en) |
| GB (1) | GB475246A (en) |
-
1914
- 1914-07-17 FR FR475246A patent/FR475246A/en not_active Expired
-
1937
- 1937-03-17 FR FR819334D patent/FR819334A/en not_active Expired
- 1937-03-17 GB GB7895/37A patent/GB475246A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR475246A (en) | 1915-04-26 |
| FR819334A (en) | 1937-10-14 |
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