US1475144A - Electric switch device - Google Patents

Electric switch device Download PDF

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Publication number
US1475144A
US1475144A US428663A US42866320A US1475144A US 1475144 A US1475144 A US 1475144A US 428663 A US428663 A US 428663A US 42866320 A US42866320 A US 42866320A US 1475144 A US1475144 A US 1475144A
Authority
US
United States
Prior art keywords
contact
sections
carbon
contact pieces
switch
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
US428663A
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English (en)
Inventor
Schon Ludwig
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl 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 Krupp Stahl AG filed Critical Krupp Stahl AG
Application granted granted Critical
Publication of US1475144A publication Critical patent/US1475144A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns

Definitions

  • the present invention relates to switch devices of the kind serving to cut out an 0 electric circuit, in the case the are produced during the break action is dispersed by a magnetic field. If switch apparatus of this kind be fitted out with metal, say, copper contacts, and if, moreover, they are em- 5 p ed to switch off strong currents at a big voltage then, owing to the fusing,
  • The'object of this invention is to prevent in the case of switch apparatus of the kind specified, the formation of such grooves which moreover tend to unduly increase the intermediate resistance.
  • Fig. 1 is a vertical longitudinal section
  • Fig. 2 a top view of the improved switch structure.
  • a square frame A made of a magnetic material there are oppositely disposed 0 two rods B and C of a non-magnetic material, ofwhich the one, i. e., B, is displace able, and the other, C, stationary.
  • the said rods are provided at their mutually facing ends with resilient bushings b and 0 serv ing to accommodate the switch contact pieces and which are connected by the intervention of sockets b and c to themains conducting to the source of current.
  • Each of said contacts comprises two members D,
  • the contact sections D and E are-made of copper, whereas the sections D and E are made of carbon.
  • Two copper members D and E are arranged to bear up against the contact sections D and E said members D and E reposing with their underside on the bushings b and 0 and being likewise also secured in their position by the screws F and G (Fig. 1).
  • pole cores a and a surrounded with exciting windings a and a, respectively; these latter being fed with continuous current.
  • the pole cores 0, and a are disposed in suchwise that their vertical planes of symmetry and the contact surfaces of the switch, when closed, will lie in one and the same plane.
  • two upright, semi-circular discs (1 and a, the depending stems of which are fixed on the free polesurfaces of the cores a and a so that these discs come to form members of the pole shoes of the blow out magnet A,
  • a switch device of the class described comprising a frame, contact pieces mounted in said frame, each contact piece comprising a metal section and a carbon section. one of said contact pieces being movable to fireak the circuit and magnetic means for driving the are formed during the breaking of the circuit from the metal sections of said contact pieces to the carbon sections.
  • a switch device of the class described comprising a frame, contact pieces mounted in said frame, each contact icce comprising a metal section and a car on section, one of said contact pieces being movable to break the circuit by simultaneously disconnecting its metal section and its carbon section from the corresponding metal and carbon sections of the other contact piece and magnetic means for driving the are formed during the breaking of the circuit from the metal sections of said contact pieces to the carbon sections.
  • a switch device of the class described comprising a frame, a set of contact pieces mounted in said frame, one of said contact pieces being movable to break an electric circuit, each contact piece comprising a copper section and a carbon sectlon, means in said frame for establishing a magnetic field disposed transversely to the direction of the are formed when said electric circuit is broken, said magnetic field driving said are from said copper sections of the contact pieces to said carbon sections.
  • a switch arrangement of the class described comprising a frame, a pair of contact pieces supported by said frame, one of said contact pieces being movable to break an electric circuit, each contact piece comprising a copper section and a carbon sectlon, the copper and carbon sections of said contact pieces abutting when said switch is in its closed position, spark horns projecting outwardly from each contact piece and adjacent the carbon sections thereof, electromagnetic devices mounted within said frame on both sides of said contact devices in such a manner that their vertical planes of symmetry and the abutting faces of said contact devices are disposed in the same plane, whereby the arc formed upon the breaking of the electric circuit will be driven upwardly by the magnetic field of said magnetic devices and on to said spark horns.
  • a switch device of the class described comprising a frame, a pair of contact pieces mounted in said frame, one of said contact pieces being movable to break an electric circuit, each contact piece comprising a metal section and a carbon section, the metal and carbon sections of said contact pieces abutting when the switch is in closed position, spark horns projecting from said contact pieces and disposed ad acent the carbon sections thereof, magnetic cores disposed in said frame and transversely to the direction of the arc formed when said electric circuit is broken, windings for said cores, semicircular discs projecting vertically from said cores and disposed on either side of said spark horns, whereby said are will be driven by themagnetic field of said magnetic devices upwardly from the metal sections of said contact pieces to the carbon sections thereof and thence to said spark horns by said semi-circular disc.
  • a switch device of the class described comprising a frame, contact pieces mounted in said frame, each contact piece comprisin a metal section and a carbon section, sai
  • each contact 20 piece being rigidly connected with each other, one of said contact pieces being movable to break the circuit, means for simultaneously disconnecting the metal section-and the carbon section of said movable contact piece from the corresponding metal and carbon sections of the other contact piece, and magnetic of the other contact piece, and magnetic means for driving the are formed during the breaking of the circuit from the metal sections of said contact pieces to the carbon sections.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Contacts (AREA)
US428663A 1919-07-04 1920-12-06 Electric switch device Expired - Lifetime US1475144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE348396T 1919-07-04

Publications (1)

Publication Number Publication Date
US1475144A true US1475144A (en) 1923-11-20

Family

ID=33480533

Family Applications (1)

Application Number Title Priority Date Filing Date
US428663A Expired - Lifetime US1475144A (en) 1919-07-04 1920-12-06 Electric switch device

Country Status (5)

Country Link
US (1) US1475144A (xx)
DE (1) DE348396C (xx)
FR (1) FR526248A (xx)
GB (1) GB170745A (xx)
NL (1) NL7066C (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506991A (en) * 1946-04-01 1950-05-09 Bendix Aviat Corp Circuit breaker

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE518690A (xx) * 1952-04-07
DE1061866B (de) * 1954-06-12 1959-07-23 Calor Emag Elek Zitaets Ag Lichtbogenkammer fuer elektrische Stromunterbrecher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506991A (en) * 1946-04-01 1950-05-09 Bendix Aviat Corp Circuit breaker

Also Published As

Publication number Publication date
DE348396C (de) 1922-02-07
GB170745A (en) 1921-11-03
NL7066C (xx) 1922-06-15
FR526248A (fr) 1921-10-05

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