GB415393A - Improvements in, or relating to, automatic circuit-breakers - Google Patents
Improvements in, or relating to, automatic circuit-breakersInfo
- Publication number
- GB415393A GB415393A GB3604032A GB3604032A GB415393A GB 415393 A GB415393 A GB 415393A GB 3604032 A GB3604032 A GB 3604032A GB 3604032 A GB3604032 A GB 3604032A GB 415393 A GB415393 A GB 415393A
- Authority
- GB
- United Kingdom
- Prior art keywords
- breakers
- frame
- pivoted
- pivot
- engagement
- 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
-
- 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
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/528—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a toggle or collapsible link between handle and contact arm, e.g. sear pin mechanism
-
- 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
- H01H73/48—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 both electrothermal and electromagnetic automatic release
- H01H73/50—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 both electrothermal and electromagnetic automatic release reset by lever
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
415,393. Automatic circuit-breakers. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Dec. 20, 1932, Nos. 36040/32 and 703/33. [Class 38 (v).] A double-plate housing i containing the locking toggles e, e<1> and f, f<1>, and the trip catch g which is pivoted at g<3>and has lever arms g, g<1>, g<2> for engagement, respectively with the link f<1>, the thermal release h, and overload solenoid plunger i<1>, and an arm c carrying a roller c<1> bearing on the movable contact arm b<1>, all as set out in Specification 415,129, has an aperture k<2> for engagement by an eccentric k on a spindle k<1> journalled in the main housing plates j whereby the housing i<1> can be rotated as a whole about the pivot d' of the operating handle d, so adjusting the position of g<1> with respect to the element h. Alternatively Fig. 2 (not shown) a nut may be pivoted in the frame i at the pivot of c and engaged by a screw-member extending to the handle end of frame j. Calibration of the assembled breaker is effected by passing a tripping current through h until it reaches its distorted position, adjusting the frame i gradually up to the member h until the breaker just trips, and then securing the adjustment device. In this way inequalities in manufacture of the breakers in quantities can be compensated for. Both Provisional Specifications contain small modifications in detail and one refers to Specification 412,606.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3591133A GB415129A (en) | 1932-12-20 | 1932-12-20 | Improvements in automatic electrical circuit-breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB415393A true GB415393A (en) | 1934-08-20 |
Family
ID=10382915
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3604032A Expired GB415393A (en) | 1932-12-20 | 1932-12-20 | Improvements in, or relating to, automatic circuit-breakers |
| GB3591133A Expired GB415129A (en) | 1932-12-20 | 1932-12-20 | Improvements in automatic electrical circuit-breakers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3591133A Expired GB415129A (en) | 1932-12-20 | 1932-12-20 | Improvements in automatic electrical circuit-breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB415393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3174010A (en) * | 1961-06-27 | 1965-03-16 | Westinghouse Electric Corp | Circuit breaker utilizing kinetic energy of trip member to initiate opening of intermediate latch |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3193643A (en) * | 1961-05-15 | 1965-07-06 | Heinemann Electric Co | Circuit breaker having an improved linkage |
-
1932
- 1932-12-20 GB GB3604032A patent/GB415393A/en not_active Expired
- 1932-12-20 GB GB3591133A patent/GB415129A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3174010A (en) * | 1961-06-27 | 1965-03-16 | Westinghouse Electric Corp | Circuit breaker utilizing kinetic energy of trip member to initiate opening of intermediate latch |
Also Published As
| Publication number | Publication date |
|---|---|
| GB415129A (en) | 1934-08-20 |
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