GB469596A - Improvements in and relating to electric switches with selfgenerated arc-quenching gas - Google Patents
Improvements in and relating to electric switches with selfgenerated arc-quenching gasInfo
- Publication number
- GB469596A GB469596A GB8538/37A GB853837A GB469596A GB 469596 A GB469596 A GB 469596A GB 8538/37 A GB8538/37 A GB 8538/37A GB 853837 A GB853837 A GB 853837A GB 469596 A GB469596 A GB 469596A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- contact
- arc
- gas
- march
- 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
- H01H33/70—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
- Circuit Breakers (AREA)
Abstract
469,596. Gas - blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 23, 1937, No. 8538. Convention date, March 23, 1936. [Class 38 (v)] In a switch having an arcextinguishing chamber 1 presenting inner walls of material, such as hard rubber, capable of yielding an arc-extinguishing gas due to the heat of the arc formed between a pair of cooperating relatively movable contacts, one of which 2 is fixed ' at or near the chamber-end whereas the other 4 is movable within the chamber, in order that both large and small currents may be interrupted, the contact 2 is enclosed on its side located remote from contact 4 by an auxiliary chamber 3, capable of being put into communication with chamber 1 and containing a piston 5 which is arranged so as to vary, in response to give variations of gas-pressure, the chamber-volume put into communication with chamber 1. The piston 5 is normally urged by spring 7 against contact 2, and when it returns after being displaced from that position, it drives a blast through the chamber 1 when contact 4 leaves the lower end thereof. An adjustable vent 8 controls the action of the switch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE469596X | 1936-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB469596A true GB469596A (en) | 1937-07-28 |
Family
ID=6541039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8538/37A Expired GB469596A (en) | 1936-03-23 | 1937-03-23 | Improvements in and relating to electric switches with selfgenerated arc-quenching gas |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2110672A (en) |
| GB (1) | GB469596A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2938942A (en) * | 1957-08-16 | 1960-05-31 | Square D Co | Electrical distribution duct |
-
1937
- 1937-03-06 US US129422A patent/US2110672A/en not_active Expired - Lifetime
- 1937-03-23 GB GB8538/37A patent/GB469596A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2110672A (en) | 1938-03-08 |
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