GB535685A - Improvements in time lag over-load tripping gear for use more especially in connection with circuit breakers - Google Patents
Improvements in time lag over-load tripping gear for use more especially in connection with circuit breakersInfo
- Publication number
- GB535685A GB535685A GB339340A GB339340A GB535685A GB 535685 A GB535685 A GB 535685A GB 339340 A GB339340 A GB 339340A GB 339340 A GB339340 A GB 339340A GB 535685 A GB535685 A GB 535685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- casing
- lag
- time
- core
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/44—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay
Landscapes
- Breakers (AREA)
Abstract
535,685. Electrically-released switches. ELECTRIC CONSTRUCTION CO., Ltd., and CROSBY, E. N. Feb. 23, 1940, No. 3393. [Class 38 (v)] A time-lag, overload trip gear comprises a two-part solenoid core, the part A being separable from the part B for tripping instantaneously on heavy overload and against the magnetic attraction between the parts and the force of a spring R surrounding a headed pin Q screwed into the part B. On light overloads, the parts A, B move together and by means of a link G and rack H within a sleeve, operate a time-lag device in casing J. The non- magnetic sleeve C is threaded to receive an adjustable member K having an internal sleeve k<1> on which the core-part B normally rests, thus providing for current-setting. A lower sleeve k' is threadedly engaged by a disc M carrying a yoke N engaging trunnions j<1> of the casing J whereby the time-lag can be adjusted and the casing locked by a sleeve P. The head s of the tripping pin S is swaged into a rabbet at the top of core-part A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB339340A GB535685A (en) | 1940-02-23 | 1940-02-23 | Improvements in time lag over-load tripping gear for use more especially in connection with circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB339340A GB535685A (en) | 1940-02-23 | 1940-02-23 | Improvements in time lag over-load tripping gear for use more especially in connection with circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB535685A true GB535685A (en) | 1941-04-17 |
Family
ID=9757490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB339340A Expired GB535685A (en) | 1940-02-23 | 1940-02-23 | Improvements in time lag over-load tripping gear for use more especially in connection with circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB535685A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2583653A (en) * | 1948-12-30 | 1952-01-29 | Mary M Keczeli | Reproduction machine of the pantograph type |
-
1940
- 1940-02-23 GB GB339340A patent/GB535685A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2583653A (en) * | 1948-12-30 | 1952-01-29 | Mary M Keczeli | Reproduction machine of the pantograph type |
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