GB614510A - An improved automatic electrical cut-out - Google Patents

An improved automatic electrical cut-out

Info

Publication number
GB614510A
GB614510A GB21442/46A GB2144246A GB614510A GB 614510 A GB614510 A GB 614510A GB 21442/46 A GB21442/46 A GB 21442/46A GB 2144246 A GB2144246 A GB 2144246A GB 614510 A GB614510 A GB 614510A
Authority
GB
United Kingdom
Prior art keywords
strip
button
rod
projection
circuit
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
GB21442/46A
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 GB614510A publication Critical patent/GB614510A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/30—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/026—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
    • B28B5/027—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Breakers (AREA)

Abstract

614,510. Automatic circuit-breakers. LANDIS & GYR SOC. ANON. July 17, 1946, No. 21442. Convention date, Aug. 1, 1945. [Class 38 (v)] An automatic circuit-breaker is tripped by the action of a bimetallic strip 20 which joins moving contacts. 19 mounted on a sliding frame 2 within the body 1. A flat strip 3 is free to slide within the frame 2, but may be locked to it by means of a projection 4 abutting a T- shaped catch 21, which has a rod 23 bearing on the bimetallic strip. A contact-pressure spring 7 is placed between shoulders 5 formed on the strip 3, and a press-button 6. The end of the strip 3 is bent over at 8 to overlap a rod 9 fixed within the button. In the position shown the circuit-breaker is closed and when an overload occurs the bimetallic strip moves the catch 23, 21 clear of the projection 4 so that a spring 27 forces the sliding frame upwards to break the circuit. The sliding frame then strikes a projection 14 on a stirrup 12 causing it to pivot about pins 10 to release the rod 9 from books 13. The push-button 6 is then forced up into the " off " position by springs 18, causing the rod 9 to lift the strip 3 to reset the projection 4 on the catch 21. The circuit breaker is re-closed by pushing the button down so that the contact pressure spring pushes the strip 3 and sliding frame 2 down to close the contacts 19, 25, the button being held down by the re-engagement of the rod 9 with the hooks 13, which are moved back into position by the action of spring 18 pushing on a plate 15 which bears on the stirrup 12 by means of a short lever. A screw socket may be provided in lieu of the plug-pins 26.
GB21442/46A 1945-08-01 1946-07-17 An improved automatic electrical cut-out Expired GB614510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH614510X 1945-08-01

Publications (1)

Publication Number Publication Date
GB614510A true GB614510A (en) 1948-12-16

Family

ID=4523645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21442/46A Expired GB614510A (en) 1945-08-01 1946-07-17 An improved automatic electrical cut-out

Country Status (6)

Country Link
BE (1) BE466234A (en)
CH (1) CH246816A (en)
DE (1) DE846129C (en)
FR (1) FR914493A (en)
GB (1) GB614510A (en)
NL (1) NL126715C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625625A (en) * 1950-06-02 1953-01-13 Mechanical Products Inc Free trip circuit breaker
US2838635A (en) * 1956-07-16 1958-06-10 Mechanical Products Inc Electric switch having automatic current overload protection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941802C (en) * 1952-01-29 1956-04-19 Mechanical Products Inc Electrical interrupter with a switching element carrying the movable contacts and a bimetal element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625625A (en) * 1950-06-02 1953-01-13 Mechanical Products Inc Free trip circuit breaker
US2838635A (en) * 1956-07-16 1958-06-10 Mechanical Products Inc Electric switch having automatic current overload protection

Also Published As

Publication number Publication date
DE846129C (en) 1952-08-07
NL126715C (en)
CH246816A (en) 1947-01-31
BE466234A (en)
FR914493A (en) 1946-10-09

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