GB742609A - Improvements in or relating to electric switches, particularly tumbler switches - Google Patents

Improvements in or relating to electric switches, particularly tumbler switches

Info

Publication number
GB742609A
GB742609A GB1577253A GB1577253A GB742609A GB 742609 A GB742609 A GB 742609A GB 1577253 A GB1577253 A GB 1577253A GB 1577253 A GB1577253 A GB 1577253A GB 742609 A GB742609 A GB 742609A
Authority
GB
United Kingdom
Prior art keywords
blade
roller
switches
lever
relating
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
GB1577253A
Inventor
William Clarke Holliday
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.)
Novar ED&S Ltd
Original Assignee
MK Electric 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 MK Electric Ltd filed Critical MK Electric Ltd
Priority to GB1577253A priority Critical patent/GB742609A/en
Publication of GB742609A publication Critical patent/GB742609A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/168—Driving mechanisms using cams

Landscapes

  • Escalators And Moving Walkways (AREA)

Abstract

742,609. Tumbler switches. ARNOLD, C. L., DOWSETT, R. W., SHARMAN, A., and M. K. ELECTRIC, Ltd. June 16, 1954 [June 8, 1953], No. 15772/43. Class 38(5) A switch comprises a lever 2 having a cam element 3 which operates a contact blade 13 through the intermediary of a roller (or ball) 5, the blade 13 being flexed against the bias of a spring 18 when the lever is moved to separate the contacts 14, 16. The roller 5 is freely located in a rectangular-shaped aperture 6 in a spring blade 8 fixed at 9, ears 11, 12 on the blade 8 acting as guides for the roller, the arrangement ensuring that when the lever 2 is operated the roller 5 can move relatively to the plane of the blade 8 and the latter is only slightly flexed. In a modification (Fig. 3, not shown) the ear 12 is omitted and replaced by an ear formed on the upper surface of the blade 13.
GB1577253A 1953-06-08 1953-06-08 Improvements in or relating to electric switches, particularly tumbler switches Expired GB742609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1577253A GB742609A (en) 1953-06-08 1953-06-08 Improvements in or relating to electric switches, particularly tumbler switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1577253A GB742609A (en) 1953-06-08 1953-06-08 Improvements in or relating to electric switches, particularly tumbler switches

Publications (1)

Publication Number Publication Date
GB742609A true GB742609A (en) 1955-12-30

Family

ID=10065210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1577253A Expired GB742609A (en) 1953-06-08 1953-06-08 Improvements in or relating to electric switches, particularly tumbler switches

Country Status (1)

Country Link
GB (1) GB742609A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1146161B (en) * 1960-01-08 1963-03-28 Electrotechnische Mechanische Electrical switch with at least two buttons
NL8600529A (en) * 1985-03-28 1986-10-16 Licentia Gmbh ZERO LEAD SEPARATING DEVICE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1146161B (en) * 1960-01-08 1963-03-28 Electrotechnische Mechanische Electrical switch with at least two buttons
NL8600529A (en) * 1985-03-28 1986-10-16 Licentia Gmbh ZERO LEAD SEPARATING DEVICE.

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