GB481407A - Improvements in or relating to electric switches having automatic overload tripping or release mechanism - Google Patents
Improvements in or relating to electric switches having automatic overload tripping or release mechanismInfo
- Publication number
- GB481407A GB481407A GB21350/37A GB2135037A GB481407A GB 481407 A GB481407 A GB 481407A GB 21350/37 A GB21350/37 A GB 21350/37A GB 2135037 A GB2135037 A GB 2135037A GB 481407 A GB481407 A GB 481407A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- arms
- spring
- switch
- button
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/38—Electromagnetic mechanisms wherein the magnet coil also acts as arc blow-out device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
-
- 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
- H01H73/36—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 electromagnetic release and no other automatic release
- H01H73/44—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 electromagnetic release and no other automatic release reset by push-button, pull-knob or slide
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Breakers (AREA)
- Tumbler Switches (AREA)
- Thermally Actuated Switches (AREA)
Abstract
481,407. Automatic circuit-breakers. SIEMENS - SCHUCKERTWERKE AKT.- GES. Aug. 3, 1937, No. 21350. Convention date, Aug. 3, 1936. [Class 38 (v)] A switch having automatic overload tripping or releasing mechanism including a pivoted catch lever co-operating with a movable detent or stop which is actuated to effect tripping, has a member of the switch operating toggle pivoted on the catch lever, and the length of the catch-lever bearing or the distance between two bearing parts of the lever is greater than the effective length of the leverarm perpendicular to the bearing axis. The drawing shows a screw-plug switch having a tripcoil 4 with plunger 6 and push rod 8, a bimetal element 16 with adjustable screw 41, and a mechanical-release batton 15. The catch lever 24, Fig. 4, is provided with two bearing points on a pivot 23 and embraces two side-plates 17 housing the mechanism. The detent lever 37 is similarly pivoted at 38 and embraces plates 17, and is further provided with an insulating piece 42 adapted to be engaged by screw 41 when element 16 flexes to the left. The rod 8 and press-button 15 engage a lever 40 which is pivoted at 39 and takes in a slot in the lever 37. The movable bridging contact 12 is positioned between insulating members 31, Fig. 6, on the ends of arms 29 forming with arms 28 a two-part lever, which is held extended by means of a spring 30 wound round their common pivot 49. A toggle 25, 27 is pivoted to lever 24 at 46 and to arms 28 at 44, and its common pivot 26 takes in a slot 32 in an extension 33 of the operating-button 13 which is guided by plates 34, 35 riveted in plates 17. When the lever 37 is rotated anticlockwise, a spring 43, Fig. 6, around pivot 49 rotates lever 29 to move contact 12 " off,'' and at the same time slides toggle 25, 27 to the right. During this movement, a further spring 45, Fig. 6, acts on lever 27 to raise the pin 26 and button 13 to the open position against guide 34, which movement also restores lever 24 into engagement with detent 37. To reclose, the button 13 is pushed down to carry the pivot 26 below the line of centres, where it is arrested by guide 35. Owing to the arrangement of the pin 26 and slot 32, the switch cannot be held closed on overload. The coil end-plate 19, plates 17, and the base-plate 18 are secured by tubular rivets 20 to a ceramic intermediate body 9 in a chamber in which the contacts are housed. The cover 14 is secured to the body by screws 21 passing through the tubular rivets 20 into nuts located in recesses in the cover. The arms 29 pass into the contactchamber through slots, the ends of which are defined by projections 48 which absorb the opening impact of the mechanism. Arms 28. 29 can be replaced by a single rigid lever and the spring 30 replaced by one mounted between that lever and contact 12. The toggle 25, 27 can be arranged to pass well over the dead-centre position before reaching stop 35 in order to obtain reliable closure of the switch, Fig. 8 (not shown), or the arms 29 could be locked open by a spring-member which is deflected by the button 13 at the end of the closing movement to allow spring 30 to impart a rapid closing movement, Fig. 9 (not shown). The Specification also shows how the invention can be applied to a switch mounted on a flat baseplate with the contacts in a chamber located between a pair of blow-out and trip coils, and an armature that is made of a stamping and moves in a plane parallel to that of the coils and embraces the latter, Figs. 10-13 (not shown).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES123694D DE729567C (en) | 1936-08-04 | 1936-08-04 | Overcurrent switch |
DES123693D DE719663C (en) | 1936-08-04 | 1936-08-04 | Overcurrent switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB481407A true GB481407A (en) | 1938-03-10 |
Family
ID=41264184
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21349/37A Expired GB483204A (en) | 1936-08-04 | 1937-08-03 | Improvements in or relating to electric switches having an automatic overload release or tripping device |
GB21350/37A Expired GB481407A (en) | 1936-08-04 | 1937-08-03 | Improvements in or relating to electric switches having automatic overload tripping or release mechanism |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21349/37A Expired GB483204A (en) | 1936-08-04 | 1937-08-03 | Improvements in or relating to electric switches having an automatic overload release or tripping device |
Country Status (7)
Country | Link |
---|---|
US (2) | US2217462A (en) |
BE (2) | BE422958A (en) |
CH (1) | CH216606A (en) |
DE (3) | DE729567C (en) |
FR (2) | FR825136A (en) |
GB (2) | GB483204A (en) |
NL (2) | NL52541C (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2612575A (en) * | 1947-06-13 | 1952-09-30 | Francis Ondrejca | Resetting fuse plug |
GB637618A (en) * | 1948-02-26 | 1950-05-24 | Rotax Ltd | Improvements relating to automatic electric switches |
DE836822C (en) * | 1949-08-26 | 1952-04-17 | Otto Streng Dipl Ing | Circuit breakers, especially small circuit breakers |
US2774840A (en) * | 1952-09-01 | 1956-12-18 | Leyhausen Wilhelm | Automatic switches |
US2835765A (en) * | 1954-11-22 | 1958-05-20 | Ite Circuit Breaker Ltd | Circuit breaker |
US2824930A (en) * | 1955-01-14 | 1958-02-25 | Bulldog Electric Products Co | Circuit breaker |
US2830151A (en) * | 1955-12-09 | 1958-04-08 | Hill George Leslie | Circuit breaker |
US3614702A (en) * | 1969-09-08 | 1971-10-19 | Elmwood Sensors | Terminal-contact rivet construction and method of assembly thereof |
US3629747A (en) * | 1970-03-26 | 1971-12-21 | Westinghouse Electric Corp | Electromagnetic trip device for circuit interrupters |
DE2616554C2 (en) * | 1976-04-14 | 1984-01-12 | Brown, Boveri & Cie Ag, 6800 Mannheim | Electrical installation switch, in particular line circuit breaker with residual current protection device |
DE19904403A1 (en) * | 1999-02-04 | 2000-08-10 | Abb Patent Gmbh | Light arc quenching chamber for electrical switching device, especially circuit breaker, has spatial divider that forms gap with wall that combines sub-arcs formed between contact parts |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE581418C (en) * | 1933-07-27 | Wilhelm Leyhausen | Overcurrent switch with toggle lever contact device | |
NL24802C (en) * | 1926-05-22 | |||
DE638997C (en) * | 1935-09-12 |
-
1936
- 1936-08-04 DE DES123694D patent/DE729567C/en not_active Expired
- 1936-08-04 DE DES123693D patent/DE719663C/en not_active Expired
-
1937
- 1937-08-02 US US157028A patent/US2217462A/en not_active Expired - Lifetime
- 1937-08-03 BE BE422958D patent/BE422958A/xx unknown
- 1937-08-03 NL NL83592A patent/NL52541C/xx active
- 1937-08-03 FR FR825136D patent/FR825136A/en not_active Expired
- 1937-08-03 GB GB21349/37A patent/GB483204A/en not_active Expired
- 1937-08-03 GB GB21350/37A patent/GB481407A/en not_active Expired
- 1937-08-03 BE BE422957D patent/BE422957A/xx unknown
- 1937-08-03 NL NL83593A patent/NL45995C/xx active
- 1937-08-03 FR FR825137D patent/FR825137A/en not_active Expired
-
1939
- 1939-08-04 DE DES138131D patent/DE741351C/en not_active Expired
-
1940
- 1940-07-01 CH CH216606D patent/CH216606A/en unknown
- 1940-10-31 US US363706A patent/US2290367A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2290367A (en) | 1942-07-21 |
US2217462A (en) | 1940-10-08 |
DE741351C (en) | 1943-11-10 |
FR825136A (en) | 1938-02-24 |
FR825137A (en) | 1938-02-24 |
DE719663C (en) | 1942-04-14 |
NL52541C (en) | 1942-06-15 |
CH216606A (en) | 1941-08-31 |
GB483204A (en) | 1938-04-13 |
BE422957A (en) | 1937-09-30 |
BE422958A (en) | 1937-09-30 |
NL45995C (en) | 1939-06-05 |
DE729567C (en) | 1942-12-18 |
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