GB980519A - Combination electric switch - Google Patents

Combination electric switch

Info

Publication number
GB980519A
GB980519A GB24813/62A GB2481362A GB980519A GB 980519 A GB980519 A GB 980519A GB 24813/62 A GB24813/62 A GB 24813/62A GB 2481362 A GB2481362 A GB 2481362A GB 980519 A GB980519 A GB 980519A
Authority
GB
United Kingdom
Prior art keywords
tumbler
knob
peg
bars
bus
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
GB24813/62A
Inventor
Raymond William Davidson
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.)
Electronic Security Corp
Original Assignee
Electronic Security Corp
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 Electronic Security Corp filed Critical Electronic Security Corp
Publication of GB980519A publication Critical patent/GB980519A/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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00666—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with dials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

980,519. Secret contact - combination switches. ELECTRONIC SECURITY CORPORATION. June 28, 1962, No. 24813/62. Heading H2B. A secret combination switch comprises a shaft 25 carrying four loosely mounted conducting tumblers 35...38, each tumbler having a toothed periphery with one insulating segment 56 and an annular recess 43 in which is a radially extending web 45 ... 48 respectively. Projecting from the rear of each tumbler is a peg 50 and secured to the shaft is an arm 40 which is engageable with the peg 50 of the rear tumbler 38. Rotation of an indexed operating knob 28 causes arm 40 to pick up the peg 50 of the tumbler 38. Further rotation causes the web 48 of tumbler 38 to pick up peg 50 of tumbler 37. Continued rotation causes the tumblers to be picked up in turn. Rotation of knob 28 is halted by the operator when it reaches its corresponding reference position where the insulating segment 56 of tumbler 35 is engaged by contacts 68, 69 of bus-bars 65, 66. The knob is now rotated in the reverse direction, tumbler 35 being retained in position by the engagement of the contacts 68, 69 with the teeth of the tumbler, until the insulating segment of tumbler 36 is in engagement with its contacts 68, 69. The knob is successively, reversely rotated until the insulating segments of all the tumblers are in engagement with the contacts 68, 69 of bus-bars 65, 66 and thus the circuit through the bus-bars is broken. In order that the combination may be varied the ends of the shaft 25 are of non-circular crosssection and the arm 40 and knob 28 are adjustably mounted on them. In an alternative embodiment (Figs. 8, 9, not shown) a coupling of non-circular cross-section is inserted between the end of the shaft and the knob so that the combination can be varied to a greater extent. The bus-bars 65, 66 are welded or adhesively secured to an insulating lining 60 in the case.
GB24813/62A 1961-09-27 1962-06-28 Combination electric switch Expired GB980519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US141091A US3192331A (en) 1961-09-27 1961-09-27 Permutation switch with a pair of bus bars each having spaced apart integral spring fingers

Publications (1)

Publication Number Publication Date
GB980519A true GB980519A (en) 1965-01-13

Family

ID=22494118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24813/62A Expired GB980519A (en) 1961-09-27 1962-06-28 Combination electric switch

Country Status (5)

Country Link
US (1) US3192331A (en)
BE (1) BE623372A (en)
CH (1) CH403941A (en)
DE (1) DE1228699B (en)
GB (1) GB980519A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391259A (en) * 1967-04-24 1968-07-02 Kenneth E. Massengale Electrical switch
US3657496A (en) * 1970-10-09 1972-04-18 Electronic Controls Corp Permutation switches
US3801761A (en) * 1973-07-05 1974-04-02 F Green Combination electrical switch
US3878346A (en) * 1973-07-05 1975-04-15 Franklin L Green Combination electrical switch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1156121A (en) * 1914-04-04 1915-10-12 Harry C Dunning Combination-switch.
US1185690A (en) * 1915-07-30 1916-06-06 George W Lawrence Electric switch.
US1673607A (en) * 1926-03-31 1928-06-12 David M Tulloch Electric switch device
NL126097C (en) * 1945-10-17
US2528746A (en) * 1947-05-19 1950-11-07 Giffin Edward Stanley Cam-operated latch mechanism
US2797271A (en) * 1954-03-29 1957-06-25 Augustine Davidson Lock Corp Permutation switch
US2934615A (en) * 1956-03-21 1960-04-26 Goral Lewis Combination lock switch
US2984717A (en) * 1959-06-22 1961-05-16 Max A Loc Inc Permutation switch

Also Published As

Publication number Publication date
US3192331A (en) 1965-06-29
CH403941A (en) 1965-12-15
DE1228699B (en) 1966-11-17
BE623372A (en)

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