GB743709A - Improvements in or relating to rotary electric stud switches - Google Patents

Improvements in or relating to rotary electric stud switches

Info

Publication number
GB743709A
GB743709A GB27747/52A GB2774752A GB743709A GB 743709 A GB743709 A GB 743709A GB 27747/52 A GB27747/52 A GB 27747/52A GB 2774752 A GB2774752 A GB 2774752A GB 743709 A GB743709 A GB 743709A
Authority
GB
United Kingdom
Prior art keywords
connector
contacts
switch
stirrup
copper
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
GB27747/52A
Inventor
Alan Arthur Kirchel
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.)
Muirhead and Co Ltd
Original Assignee
Muirhead 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 Muirhead and Co Ltd filed Critical Muirhead and Co Ltd
Priority to GB27747/52A priority Critical patent/GB743709A/en
Priority to US387947A priority patent/US2786104A/en
Priority to FR1086096D priority patent/FR1086096A/en
Priority to DEM20643A priority patent/DE1006930B/en
Publication of GB743709A publication Critical patent/GB743709A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Thermally Actuated Switches (AREA)
  • Slide Switches (AREA)
  • Switches With Compound Operations (AREA)

Abstract

743,709. Rotary switches; switch contacts. MUIRHEAD & CO., Ltd. Oct. 20, 1953 (Nov. 4. 1952], No. 27747/52. Class 38(5) The switch comprises a series of stud contacts 2 adapted to be connected selectively to a common contact 3 by a connector 5 of resilient sheet metal. The connector has an aperture receiving projections 10 of a rotor arm 11 and is urged against the contacts by a spring 7 acting on a stirrup 8. The connector may be of copper, beryllium-copper or silver bronze bimetal sheet and may carry contact pads 6 of sintered silver, containing a small amount of graphite to provide lubrication. The pad 6 may have a cavity locating part of the stirrup (Fig. 5, not shown), or the connector may be dished having a precious contact material attached to its lower side (Fig. 6, not shown). The contacts 6 are said to be self-aligning due to the form of the connector 5. The switch spindle 12 is located by a spring 15 and notched disc 14.
GB27747/52A 1952-11-04 1952-11-04 Improvements in or relating to rotary electric stud switches Expired GB743709A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB27747/52A GB743709A (en) 1952-11-04 1952-11-04 Improvements in or relating to rotary electric stud switches
US387947A US2786104A (en) 1952-11-04 1953-10-23 Rotary stud switches
FR1086096D FR1086096A (en) 1952-11-04 1953-10-29 Improvements to rotary stud switches
DEM20643A DE1006930B (en) 1952-11-04 1953-11-02 Electrical rotary switch with sliding contact buttons, especially for scientific devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27747/52A GB743709A (en) 1952-11-04 1952-11-04 Improvements in or relating to rotary electric stud switches

Publications (1)

Publication Number Publication Date
GB743709A true GB743709A (en) 1956-01-25

Family

ID=10264614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27747/52A Expired GB743709A (en) 1952-11-04 1952-11-04 Improvements in or relating to rotary electric stud switches

Country Status (4)

Country Link
US (1) US2786104A (en)
DE (1) DE1006930B (en)
FR (1) FR1086096A (en)
GB (1) GB743709A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935085A (en) * 1956-05-12 1960-05-03 Heinrich Bartz Kg Vehicle control
US2976379A (en) * 1958-02-06 1961-03-21 Chester R Rhodes Wiping contact rotary relay
DE1158148B (en) * 1961-10-12 1963-11-28 Eduard Winkler Appbau G M B H U-shaped contact bridge for rotary switches, especially step switches
US3117491A (en) * 1962-06-29 1964-01-14 Stern Joshua Information retrieval apparatus
US3227822A (en) * 1962-11-20 1966-01-04 Charles D Corey Sub-miniaturized rotary switch with stationary spring contact members and locking means
US4050756A (en) * 1975-12-22 1977-09-27 International Telephone And Telegraph Corporation Conductive elastomer connector and method of making same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE376108C (en) * 1923-05-24 Reiniger Gebbert & Schall Akt Lever switch
US703234A (en) * 1902-03-07 1902-06-24 John Wilson Brown Jr Electric controller.
GB329445A (en) * 1929-03-26 1930-05-22 Henry Tinsley Improvements in and relating to electric switches
US1908204A (en) * 1930-09-02 1933-05-09 Clum Mfg Company Electric switch
US2270727A (en) * 1939-06-09 1942-01-20 Cutler Hammer Inc Electrical contact
US2241262A (en) * 1939-10-26 1941-05-06 Baker & Co Inc Electrical contact
US2319240A (en) * 1940-03-19 1943-05-18 Mallory & Co Inc P R Electric contact and the like
GB569027A (en) * 1943-10-26 1945-05-01 Plessey Co Ltd An improved rotary electric switch
US2481649A (en) * 1945-04-25 1949-09-13 Daven Company Attenuator assembly
BE466811A (en) * 1946-01-11
GB619474A (en) * 1946-12-12 1949-03-09 Foster Transformers And Switch Improvements in or relating to electrical switching devices suitable for tapping transformers
US2632822A (en) * 1948-02-12 1953-03-24 Post Glover Electric Company Contactor
US2577225A (en) * 1949-09-22 1951-12-04 Us Instr Corp Rotary switch
US2570960A (en) * 1950-01-10 1951-10-09 Daven Company Electrical switch

Also Published As

Publication number Publication date
US2786104A (en) 1957-03-19
DE1006930B (en) 1957-04-25
FR1086096A (en) 1955-02-09

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