GB901665A - Improvements relating to key-operated electric switches - Google Patents

Improvements relating to key-operated electric switches

Info

Publication number
GB901665A
GB901665A GB4203359A GB4203359A GB901665A GB 901665 A GB901665 A GB 901665A GB 4203359 A GB4203359 A GB 4203359A GB 4203359 A GB4203359 A GB 4203359A GB 901665 A GB901665 A GB 901665A
Authority
GB
United Kingdom
Prior art keywords
key
improvements relating
dec
sets
electric switches
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
GB4203359A
Inventor
Ronald Ernest Charles Brown
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB4203359A priority Critical patent/GB901665A/en
Publication of GB901665A publication Critical patent/GB901665A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/06—Key inserted and then turned to effect operation of the switch

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

901,665. Cam-operated switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 1, 1960 [Dec. 10, 1959], No. 42033/59. Class 38 (5). A dial-lock switch for preventing unauthorized use of trunk-dialling facilities comprises a key-operated barrel-type lock 1, carrying on an integral projection 2 at one end, a face cam 3, preferably of nylon, which engages a camfollower 4<SP>1</SP> formed by bending the moving contact blade 4 of the contact set. As shown, the set comprises two fixed arcuate blades 7 and one movable arcuate blade 4, but in Fig. 3 (not shown), there are two such sets, the movable blades of the sets being connected by a rod.
GB4203359A 1959-12-10 1959-12-10 Improvements relating to key-operated electric switches Expired GB901665A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4203359A GB901665A (en) 1959-12-10 1959-12-10 Improvements relating to key-operated electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4203359A GB901665A (en) 1959-12-10 1959-12-10 Improvements relating to key-operated electric switches

Publications (1)

Publication Number Publication Date
GB901665A true GB901665A (en) 1962-07-25

Family

ID=10422522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4203359A Expired GB901665A (en) 1959-12-10 1959-12-10 Improvements relating to key-operated electric switches

Country Status (1)

Country Link
GB (1) GB901665A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124026A (en) * 1982-07-09 1984-02-08 Regent Lock Co Ltd Key operable lock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124026A (en) * 1982-07-09 1984-02-08 Regent Lock Co Ltd Key operable lock

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