GB436422A - Improvements in and relating to gas blast electric switches - Google Patents

Improvements in and relating to gas blast electric switches

Info

Publication number
GB436422A
GB436422A GB540/35A GB54035A GB436422A GB 436422 A GB436422 A GB 436422A GB 540/35 A GB540/35 A GB 540/35A GB 54035 A GB54035 A GB 54035A GB 436422 A GB436422 A GB 436422A
Authority
GB
United Kingdom
Prior art keywords
nozzle
jan
relating
neck
portions
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
Application number
GB540/35A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB436422A publication Critical patent/GB436422A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/204—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
    • 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
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle

Abstract

436,422. High - tension switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Jan. 7, 1935, No. 540. Convention date, Jan. 5, 1934. [Class 38 (v)] The relatively movable contacts d, e of a gas-blast switch are contained in a nozzle of insulating material through which compressed gas flows in a single direction during the operation of interrupting the circuit, the nozzle being provided with one or more neck portions b located between the positions occupied by the contacts when fully separated. The neck portion of the nozzle may be elongated, and the pressure behind the neck portion may be regulated by means of devices in a draught tube communicating with the nozzle. In a modification, Fig. 4, the moving contact d passes through a number of neck portions b<1>-b<3> alternating with widened portions c<1>-c<3>.
GB540/35A 1934-01-05 1935-01-07 Improvements in and relating to gas blast electric switches Expired GB436422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE436422X 1934-01-05

Publications (1)

Publication Number Publication Date
GB436422A true GB436422A (en) 1935-10-10

Family

ID=6506895

Family Applications (2)

Application Number Title Priority Date Filing Date
GB540/35A Expired GB436422A (en) 1934-01-05 1935-01-07 Improvements in and relating to gas blast electric switches
GB6163/35A Expired GB451434A (en) 1934-01-05 1935-02-26 Improvements in and relating to electric switches provided with arc-quenching means

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB6163/35A Expired GB451434A (en) 1934-01-05 1935-02-26 Improvements in and relating to electric switches provided with arc-quenching means

Country Status (2)

Country Link
FR (2) FR436422A (en)
GB (2) GB436422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2570610A (en) * 1947-08-23 1951-10-09 Allis Chalmers Mfg Co Gas blast circuit breaker with trap for products of arcing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767664C (en) * 1941-07-04 1953-03-16 Aeg Free jet gas switch
DE908154C (en) * 1942-01-27 1954-04-01 Aeg Free jet gas switch
US2645695A (en) * 1949-02-23 1953-07-14 Allis Chalmers Mfg Co Electric circuit breaker with arcing contacts in skew blast

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2570610A (en) * 1947-08-23 1951-10-09 Allis Chalmers Mfg Co Gas blast circuit breaker with trap for products of arcing

Also Published As

Publication number Publication date
FR436422A (en) 1912-03-27
GB451434A (en) 1936-08-06
FR783575A (en) 1935-07-16

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