US1653823A - Contact device for key switches - Google Patents

Contact device for key switches Download PDF

Info

Publication number
US1653823A
US1653823A US742041A US74204124A US1653823A US 1653823 A US1653823 A US 1653823A US 742041 A US742041 A US 742041A US 74204124 A US74204124 A US 74204124A US 1653823 A US1653823 A US 1653823A
Authority
US
United States
Prior art keywords
contact
key switches
contact device
point
contacts
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 - Lifetime
Application number
US742041A
Other languages
English (en)
Inventor
Pudelko Riccard
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
Application granted granted Critical
Publication of US1653823A publication Critical patent/US1653823A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • ke switclies that is to say switches in which butt contacts are pressed together by a spring and are separated from one another in order to interrupt the circuit
  • the object of the present invention is to eliminate the aforementioned disadvantages.
  • one contact part at least is domed at the point of contact, and the other is provided with a slot at the point of contact, so that contact is obtained at more than one point.
  • FIG. 1 being a side elevation
  • Fig. 2 a plan.
  • the moving contact 1 is mounted on a splin blade 2 and the fixed contact 3 is slotted curved portion 5 representing the surface of a cylinder.
  • the curvature of the cyhndrical surface 5 and the slot both run in the direction of the spring blade 2, and thus contact is obtained along two lines.
  • the fixed contact 3 could be domed and the moving contact could be provided with the slot.
  • the surface of the one' contact might be spherical.
  • both contacts could be domed.
  • a contact device for key switches comprising a solid fixed member and a movable 60 member, said fixed member presenting a relatively large plane contact surface and a groove therein extending to said surface and substantially medially arranged, the said movable member presenting a convex surface to bear. and establish contact on said plane surface of the first named member at a plurality of points along a line extending from edge to edge of said plane surface of the first named member excepting the width of *0 said groove, said convex surface extending v in the same direction as said grooove.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US742041A 1923-10-10 1924-10-06 Contact device for key switches Expired - Lifetime US1653823A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
US1653823A true US1653823A (en) 1927-12-27

Family

ID=4452921

Family Applications (1)

Application Number Title Priority Date Filing Date
US742041A Expired - Lifetime US1653823A (en) 1923-10-10 1924-10-06 Contact device for key switches

Country Status (5)

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

Cited By (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
US2487422A (en) * 1948-04-06 1949-11-08 Thermo Electric Fuse Corp Resettable circuit breaker
US2490020A (en) * 1946-02-11 1949-12-06 First Ind Corp Electrical contact
US2565373A (en) * 1948-04-30 1951-08-21 William D Kight Combination switch contact and rivet
US2623131A (en) * 1949-10-04 1952-12-23 Carl V Chermendy Circuit breaker
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
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
US5424700A (en) * 1992-10-26 1995-06-13 Valeo Equipements Electriques Moteur Starter motor contactor for a motor vehicle internal combustion engine

Cited By (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
US2487422A (en) * 1948-04-06 1949-11-08 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
US5424700A (en) * 1992-10-26 1995-06-13 Valeo Equipements Electriques Moteur Starter motor contactor for a motor vehicle internal combustion engine

Also Published As

Publication number Publication date
CH106643A (de) 1924-09-01
FR586471A (fr) 1925-03-27
GB223220A (en) 1925-06-25
NL15328C (de)

Similar Documents

Publication Publication Date Title
US1653823A (en) Contact device for key switches
US2401430A (en) Plugboard contactors
US2543036A (en) Electrical contact spring assembly
US2324798A (en) Switch
GB965035A (en) Improvements in and relating to three position electric switches
GB1114913A (en) Electric switch device with improved contact structure
GB621316A (en) Improvements relating to electrical fuses
ES280406A1 (es) Perfeccionamientos en reveladores electromagneticos
GB1151142A (en) Improvements in or relating to Electrical Switches
GB871499A (en) Electromagnetically operable electric switches
GB816636A (en) Improvements in or relating to electric contact arrangements
US2515324A (en) Electric switch
US1383695A (en) Electric switch
US1810314A (en) Snap switch
GB1011852A (en) Improved electrical contact arrangement
SU86357A1 (ru) Магнитный зажим дл повышени электродинамической устойчивости электрических контактов
US2438510A (en) Electrical contact brush
GB790435A (en) Improvements in and relating to electrical contacts
GB556452A (en) Improvements in or relating to electric contacts
GB211366A (en) Improvements in electric contacts
GB625936A (en) Improvements in or relating to contact assemblies for electric contactors, switchgear and the like
GB782110A (en) Improvements in or relating to electrical switches having wiping contacts
US1348684A (en) Electric switch
GB227905A (en) Improved method of and means for securing insulated parts of electrical apparatus together
GB225989A (en) Improvements relating to electrical fuses and switches