GB492721A - Improvements in arc-rupturing devices for electric switches - Google Patents
Improvements in arc-rupturing devices for electric switchesInfo
- Publication number
- GB492721A GB492721A GB8666/37A GB866637A GB492721A GB 492721 A GB492721 A GB 492721A GB 8666/37 A GB8666/37 A GB 8666/37A GB 866637 A GB866637 A GB 866637A GB 492721 A GB492721 A GB 492721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bell
- slot
- contact
- arc
- pin
- 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
- H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Fuses (AREA)
Abstract
492,721. Fluid - blast switches. LANGE, E. March 24, 1937, No. 8666. Addition to 455,115. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 28, 1937.] [Class 38 (v)] The invention described in the parent Specification is modified in order that the arc at the outlet should not be produced until adequate pressure is developed to rupture it, by providing a switchoperating lever which acts directly on the movable contact of the principal break disposed in the confined space and co-operates with means for causing the movable contact of the other break to open the circuit at the outlet after the first break has been formed. The fixed contact 16 has an outlet closed by valve 17 and co-operates with a contact 15 mounted on the bell 12 which is slidable on guides 9 in the insulating chamber 11. Contact 15 is integral with socket 14 with which the rod contact 13 co-operates. In order to produce the arc in the bell before contacts 15, 16 separate, 13 is extended downwards and provided with a pin 21 engaging in a slot 22 for direct operation by lever 20, this lever having a pin 37 engaging a cam slot in an arm 35 pivoted at 36. The forked free end of 35 is engaged by a pin on a bell-crank lever 30, which is pivoted at 42 and has a pin-and-slot connection with levers 26 pivoted to the bell at 27. When 20 is rotated, contact 13 is lowered at once to draw an arc, but owing to the part 38 of the cam slot being concentric, no movement of lever 30 and the bell occurs. When pin 37 enters part 39 of the slot, the pressure developed by the arc in the bell is adequate to open the valve, and accordingly slot-part 39 is so made as to tilt arm 35 outwards, so drawing down the bell and opening contacts 15, 16. Part 40 of the slot being also concentric, no further deflection of arm 35 occurs while the rod 13 moves on downwards. When 13 clears partition 10, the fluid escapes from apertures 43 and valve 17 closes. The fluid may be liquid, air, or other gas and in the latter case may be maintained under pressure.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE455115X | 1934-12-10 | ||
DEL87122D DE685244C (en) | 1934-12-10 | 1934-12-11 | Electric switch with arc extinguishing by a flow of compressed gas |
DEL90200D DE737987C (en) | 1934-12-10 | 1936-04-22 | Switch with arc extinguishing by a flow of compressed gas |
Publications (1)
Publication Number | Publication Date |
---|---|
GB492721A true GB492721A (en) | 1938-09-26 |
Family
ID=31998340
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34195/35A Expired GB455115A (en) | 1934-12-10 | 1935-12-10 | Improvements in arc-rupturing devices for electric circuits |
GB8666/37A Expired GB492721A (en) | 1934-12-10 | 1937-03-24 | Improvements in arc-rupturing devices for electric switches |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34195/35A Expired GB455115A (en) | 1934-12-10 | 1935-12-10 | Improvements in arc-rupturing devices for electric circuits |
Country Status (6)
Country | Link |
---|---|
US (2) | US2063173A (en) |
BE (1) | BE412878A (en) |
DE (4) | DE685244C (en) |
FR (2) | FR789655A (en) |
GB (2) | GB455115A (en) |
NL (1) | NL47060C (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2146685A (en) * | 1935-12-24 | 1939-02-07 | Gen Electric | Electric circuit interrupter |
US2426250A (en) * | 1943-05-21 | 1947-08-26 | Allis Chalmers Mfg Co | Gas blast circuit breaker |
US2452476A (en) * | 1944-08-15 | 1948-10-26 | Westinghouse Electric Corp | Circuit interrupter |
US2452221A (en) * | 1945-08-27 | 1948-10-26 | Pacific Electric Mfg Corp | Fluid blast arc extinguishing circuit breaker |
BE470474A (en) * | 1946-01-21 | |||
US2501318A (en) * | 1946-09-12 | 1950-03-21 | Westinghouse Electric Corp | Fluid blast circuit breaker |
US2675446A (en) * | 1951-07-07 | 1954-04-13 | Pacific Electric Mfg Corp | Circuit-breaker structure |
DE1125993B (en) * | 1956-09-03 | 1962-03-22 | Emil Lange | Electric switch with arc extinguishing by a flow of pressure extinguishing agent generated by the arc itself |
DE1163941B (en) * | 1959-01-26 | 1964-02-27 | Emil Lange | Electric switch with arc extinguishing by a flow of pressure extinguishing agent generated by the arc itself |
-
1934
- 1934-12-11 DE DEL87122D patent/DE685244C/en not_active Expired
-
1935
- 1935-03-10 DE DE1935L0087672 patent/DE697130C/en not_active Expired
- 1935-05-06 FR FR789655D patent/FR789655A/en not_active Expired
- 1935-11-28 DE DEL89271D patent/DE737153C/en not_active Expired
- 1935-12-10 US US53749A patent/US2063173A/en not_active Expired - Lifetime
- 1935-12-10 GB GB34195/35A patent/GB455115A/en not_active Expired
- 1935-12-29 BE BE412878D patent/BE412878A/xx unknown
-
1936
- 1936-04-22 DE DEL90200D patent/DE737987C/en not_active Expired
- 1936-11-26 NL NL80163A patent/NL47060C/xx active
-
1937
- 1937-03-23 US US132584A patent/US2106032A/en not_active Expired - Lifetime
- 1937-03-24 GB GB8666/37A patent/GB492721A/en not_active Expired
- 1937-04-20 FR FR48834D patent/FR48834E/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE737153C (en) | 1943-07-07 |
GB455115A (en) | 1936-10-14 |
FR48834E (en) | 1938-07-12 |
US2063173A (en) | 1936-12-08 |
DE737987C (en) | 1943-07-30 |
FR789655A (en) | 1935-11-04 |
NL47060C (en) | 1939-11-15 |
DE685244C (en) | 1939-12-14 |
BE412878A (en) | 1936-01-31 |
DE697130C (en) | 1940-10-07 |
US2106032A (en) | 1938-01-18 |
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