US3590198A - Contact breaker for electric circuits - Google Patents

Contact breaker for electric circuits Download PDF

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Publication number
US3590198A
US3590198A US833015A US3590198DA US3590198A US 3590198 A US3590198 A US 3590198A US 833015 A US833015 A US 833015A US 3590198D A US3590198D A US 3590198DA US 3590198 A US3590198 A US 3590198A
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US
United States
Prior art keywords
conductive member
interruptor
conductive
groove
current
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
US833015A
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English (en)
Inventor
Artur Fischer
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3590198A publication Critical patent/US3590198A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H19/00—Model railways
    • A63H19/30—Permanent way; Rails; Rail-joint connections
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H18/00—Highways or trackways for toys; Propulsion by special interaction between vehicle and track
    • A63H18/02—Construction or arrangement of the trackway
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H18/00—Highways or trackways for toys; Propulsion by special interaction between vehicle and track
    • A63H18/12—Electric current supply to toy vehicles through the track

Definitions

  • the present invention relates to a contact breaker for interrupting electric currents and, more particularly, relates to an electric current interruptor disposed on a rail and adapted to disconnect the path of current between the rail and a sliding contact engaging the rail.
  • interruptors are known and in common use. They usually are connected to those parts of the rail where, for various reasons, the electric current has to be interrupted. This is accomplished by an electrically insulated disconnecting surface of the interruptor and which is positioned directly in the path of the sliding contact so that upon engagement with this contact the latter is moved onto this surface whereby the electric current is immediately interrupted.
  • Such surfaces usually are made ofa nonconductive, synthetic material.
  • this electrically insulating material used for disconnecting purposes has the well-known characteristic that it accepts an electrostatic change in response to friction. As a result of such a charge dust is attracted and is accumulated on the disconnecting surface of the interruptor. In addition, for the duration that the sliding contact slides over this surface, also the sliding contact is electrostatically charged as a result of which dust is also collected and accumulated on the sliding contact.
  • An object of the invention is to provide a simple but effective interruptor device which, at all times, facilitates a proper functioning of the disconnecting surface and the sliding contact.
  • a further object of the invention is to provide an interruptor device for electric current which provides novel means through which dust collected on this disconnecting surface is easily and effectively disposed of.
  • the interruptor device for electric current comprises a first and a second current-conductive member, with the last mentioned member operatively engaging the first-mentioned member and forming an electric circuit therewith for the passage of electric current, an interruptor member disposed on the first conductive member and having a surface electrically insulated from the first conductive member is located in the path of the second conductive member so that upon engagement of the second conductive member with this surface the electric circuit is interrupted, and means in the region of this surface adapted to remove impurities collected on the second conductive member during sliding thereof along the first conductive member.
  • the rail I comprises an undercut groove 2 which extends longitudinally in the rail.
  • an electric current interruptor device 4 Disposed on the surface 3 of the rail is an electric current interruptor device 4 which is provided with a downward projection 4a disposed in groove 2 and via which the interruptor 4 can be slidably fixed to the rail at any desired location thereof.
  • the rail itself may be endless or may follow a more or less straight line.
  • integrally formed with and forming part of the interruptor 4 is a disconnecting surface 5 provided with a corrugated upper surface.
  • a sliding contact 7 which normally slidably engages the surface 3 of the rail 1, together with the rail form an electric circuit for the passage of electric current therethrough.
  • both the rail and the sliding contact are made of electrically conducting materials.
  • the sliding contact follows the longitudinal pattern of the rail and as shown, the disconnecting surface 5, made of an electrically insulating material, lies directly in the path of travel of sliding contact 7 so that upon engagement of the sliding contact with the disconnecting surface, the contact slides over the corrugations formed in the surface. For the duration that the sliding contact slides over the disconnecting surface, the electric current between the rail and the sliding contact is interrupted.
  • the dust or other impurities, collected and accumulated on the sliding contact during its sliding engagement with the rail are, so to speak, scraped off from the contact surface of the sliding contact and so that the dust is automatically collected in the corrugated surface 5.
  • the corrugations 6 in the surface 5, as shown, extend transversely relative to the path of travel of the sliding contact so as to facilitate an efficient scraping and cleaning effect. The dust, collected in the corrugations 6, can thereafter be easily removed from the disconnecting surface.
  • Device for interrupting an electric current comprising a first current conductive member having an elongated face; a groove provided in and extending longitudinally of said face; a second current conductive member slidably engaging said first conductive member and forming an electric circuit therewith for the passage of electric current, at least one of said conductive members being displaceable with reference to the other; an interruptor member disposed on said first conductive member and having at least one projection received in said groove and positioning said interruptor member relative to said first conductive member, said interruptor member further having a surface electrically insulated from said first conductive member and located in the path of said second conductive member so that upon engagement of the latter with said surface said electric circuit is interrupted; and means in the region of said surface of said interruptor member adapted to remove impurities collected on said second conductive member during relative displacement of said conductive members.

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  • Toys (AREA)
  • Contacts (AREA)
US833015A 1968-06-26 1969-06-13 Contact breaker for electric circuits Expired - Lifetime US3590198A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1765656A DE1765656C3 (de) 1968-06-26 1968-06-26 Unterbrecherteil zur Unterbrechung eines elektrischen Stromkreises
JP1971047906U JPS4714875Y1 (xx) 1968-06-26 1971-06-07

Publications (1)

Publication Number Publication Date
US3590198A true US3590198A (en) 1971-06-29

Family

ID=59974017

Family Applications (1)

Application Number Title Priority Date Filing Date
US833015A Expired - Lifetime US3590198A (en) 1968-06-26 1969-06-13 Contact breaker for electric circuits

Country Status (11)

Country Link
US (1) US3590198A (xx)
JP (1) JPS4714875Y1 (xx)
AT (1) AT305097B (xx)
BE (1) BE735153A (xx)
CH (1) CH493952A (xx)
DE (1) DE1765656C3 (xx)
DK (1) DK122149B (xx)
ES (1) ES167996Y (xx)
GB (1) GB1210634A (xx)
NL (2) NL6909732A (xx)
SE (1) SE363925B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688231A (en) * 1994-09-30 1997-11-18 Becton Dickinson And Company Iontophoresis assembly including cleanable electrical contacts

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250884A (en) * 1964-03-02 1966-05-10 Cutler Hammer Inc Electrical switch having improved movable contact holding means and contact cleaning means

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250884A (en) * 1964-03-02 1966-05-10 Cutler Hammer Inc Electrical switch having improved movable contact holding means and contact cleaning means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688231A (en) * 1994-09-30 1997-11-18 Becton Dickinson And Company Iontophoresis assembly including cleanable electrical contacts

Also Published As

Publication number Publication date
JPS4714875Y1 (xx) 1972-05-27
BE735153A (xx) 1969-12-01
NL136956C (xx)
GB1210634A (en) 1970-10-28
DE1765656C3 (de) 1980-09-18
DE1765656B2 (de) 1980-01-31
DE1765656A1 (de) 1972-03-09
ES167996U (es) 1971-10-16
NL6909732A (xx) 1969-12-30
CH493952A (de) 1970-07-15
DK122149B (da) 1972-01-24
ES167996Y (es) 1972-06-01
SE363925B (xx) 1974-02-04
AT305097B (de) 1973-02-12

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