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GB1362196A - Electrical switches - Google Patents

Electrical switches

Info

Publication number
GB1362196A
GB1362196A GB3624770A GB3624770A GB1362196A GB 1362196 A GB1362196 A GB 1362196A GB 3624770 A GB3624770 A GB 3624770A GB 3624770 A GB3624770 A GB 3624770A GB 1362196 A GB1362196 A GB 1362196A
Authority
GB
United Kingdom
Prior art keywords
switch
housing
plate
cover
base
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
GB3624770A
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.)
Thomas Ashworth and Co Ltd
Original Assignee
Thomas Ashworth and 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 Thomas Ashworth and Co Ltd filed Critical Thomas Ashworth and Co Ltd
Priority to GB3624770A priority Critical patent/GB1362196A/en
Publication of GB1362196A publication Critical patent/GB1362196A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02Details
    • H01H13/04Cases; Covers
    • H01H13/06Dustproof, splashproof, drip-proof, waterproof or flameproof casings

Landscapes

  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

1362196 Switch cases THOMAS ASHWORTH & CO Ltd 20 Aug 1971 [27 July 1970] 36247/70 Heading H1N An alarm contact box comprises a housing, an electrical switch mounted within the housing, a frangible plate arranged to actuate the switch when the plate is broken, and a flexible watertight sealing cover held in substantially liquidtight engagement with the base of the switch so that working parts thereof are protected from any moisture in the housing. As shown a switch 10 mounted in a housing 12 has an actuator plunger 34 maintained depressed by a glass plate 56 in the front cover 18 such that breakage of the glass allows the switch to operate. The switch is mounted by screws 36 on a support plate 16, itself held against three front edges of the housing body 14 by screws 24. The cover 18 is hinged at 30 and secured by a screw 32. Flexible waterproof covers 40 and 42 of rubber or nylon, for example, protect the switch 10 from moisture in the housing 12. The cover 40 has a collar 46 which is a tight fit around the base 48 of the switch and a flange 50 is nipped between base 48 and plate 16. The front cover 42 has its periphery gripped between base 48 and plate 16. Parts of the rear cover 40 are weakened to allow cables to be forced through in a watertight manner.
GB3624770A 1971-08-20 1971-08-20 Electrical switches Expired GB1362196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3624770A GB1362196A (en) 1971-08-20 1971-08-20 Electrical switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3624770A GB1362196A (en) 1971-08-20 1971-08-20 Electrical switches

Publications (1)

Publication Number Publication Date
GB1362196A true GB1362196A (en) 1974-07-30

Family

ID=10386353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3624770A Expired GB1362196A (en) 1971-08-20 1971-08-20 Electrical switches

Country Status (1)

Country Link
GB (1) GB1362196A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115281A1 (en) * 1983-01-12 1984-08-08 Omron Tateisi Electronics Co. Limit switch assembly
CN107658189A (en) * 2017-10-30 2018-02-02 现代重工(中国)电气有限公司 A kind of rain-proof leakproof electrical circuit breakers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115281A1 (en) * 1983-01-12 1984-08-08 Omron Tateisi Electronics Co. Limit switch assembly
CN107658189A (en) * 2017-10-30 2018-02-02 现代重工(中国)电气有限公司 A kind of rain-proof leakproof electrical circuit breakers

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee