GB223220A - Contact device for key switches - Google Patents

Contact device for key switches

Info

Publication number
GB223220A
GB223220A GB23103/24A GB2310324A GB223220A GB 223220 A GB223220 A GB 223220A GB 23103/24 A GB23103/24 A GB 23103/24A GB 2310324 A GB2310324 A GB 2310324A GB 223220 A GB223220 A GB 223220A
Authority
GB
United Kingdom
Prior art keywords
contact
contact device
key switches
contacts
slot
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
GB23103/24A
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of GB223220A publication Critical patent/GB223220A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
    • G04C23/02—Constructional details
    • G04C23/12—Electric circuitry
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

223,220. Landis et Gyr Soc. Anon. Oct. 10, 1923, [Convention date]. Contacts. - Line contact between contact surfaces is secured by forming the movable contact with a cylindrically curved surface 5, the fixed contact 3 being provided with a slot 4 parallel to the axis of the spring 2 carrying the contact 1 so that a line of contact is formed at each side of the slot 4 when the contacts are in engagement. Specification 211,212 is referred to.
GB23103/24A 1923-10-10 1924-09-30 Contact device for key switches Expired GB223220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH223220X 1923-10-10

Publications (1)

Publication Number Publication Date
GB223220A true GB223220A (en) 1925-06-25

Family

ID=4452921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23103/24A Expired GB223220A (en) 1923-10-10 1924-09-30 Contact device for key switches

Country Status (5)

Country Link
US (1) US1653823A (en)
CH (1) CH106643A (en)
FR (1) FR586471A (en)
GB (1) GB223220A (en)
NL (1) NL15328C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424626A (en) * 1944-05-11 1947-07-29 Ervin O Oberdick Circuit breaker and contact therefor
US2456979A (en) * 1945-01-19 1948-12-21 Gen Electric Speed governor
US2490020A (en) * 1946-02-11 1949-12-06 First Ind Corp Electrical contact
CA465424A (en) * 1948-04-06 1950-05-23 Thermo Electric Fuse Corp. Resettable circuit breaker
US2565373A (en) * 1948-04-30 1951-08-21 William D Kight Combination switch contact and rivet
US2658977A (en) * 1948-05-08 1953-11-10 Electrical Eng Equipment Co Electrical load break switch
US2677033A (en) * 1948-09-15 1954-04-27 Frank E Smith Alternating current rectifier
US2623131A (en) * 1949-10-04 1952-12-23 Carl V Chermendy Circuit breaker
US2722584A (en) * 1952-07-12 1955-11-01 Holley Carburetor Co Automotive ignition contact points
US2976383A (en) * 1956-05-15 1961-03-21 Kobler Paul Contact pieces
FR2697370B1 (en) * 1992-10-26 1994-12-02 Valeo Equip Electr Moteur Contactor for motor vehicle internal combustion engine starter.

Also Published As

Publication number Publication date
FR586471A (en) 1925-03-27
US1653823A (en) 1927-12-27
CH106643A (en) 1924-09-01
NL15328C (en)

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