GB542893A - A time lag device for use in connection with a tripping device of an electric circuit breaker - Google Patents
A time lag device for use in connection with a tripping device of an electric circuit breakerInfo
- Publication number
- GB542893A GB542893A GB220041A GB220041A GB542893A GB 542893 A GB542893 A GB 542893A GB 220041 A GB220041 A GB 220041A GB 220041 A GB220041 A GB 220041A GB 542893 A GB542893 A GB 542893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- holes
- groove
- hole
- cylinder
- connection
- 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
- H01H71/443—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay with dash-pot
Abstract
542,893. Shock-absorbers. STATTER & CO., Ltd., J. G., MARSTON, G. S., and HOWE, F. Feb. 18, 1941, No. 2200. [Class 108 (iii)] An adjustable air-dashpot forming part of the automatic tripping mechanism of an electric circuitbreaker, comprises an air cylinder a provided with a small inlet hole e, and an outer cylinder b having in its inner surface a helical groove d communicating with e at is lower end. Adjustment is effected by holes f leading into different threads of the groove d and circularly arranged on a flat surface on which is a rotatable disc g having a hole g' which can be registered with the appropriate hole f The usual arrangement is provided for enabling the quick return of the piston c. In Fig. 2, the groove a is spirally arranged on the outer face of the cylinderboss against which is clamped a disc q having the apertures q<SP>1</SP>. The rotatable disc r has holes s cooperating with the respective holes q<SP>1</SP>. A further modification, Fig. 4 (not shown) has relativelyrotatable cylinders with grooves of different pitch on the facing cylindrical surfaces. In a modification of Fig. 1, the outer cylinder has threaded engagerrent with the inner cylinder whereby the holes f can be made to register with a greater or lesser number of threads of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB220041A GB542893A (en) | 1941-02-18 | 1941-02-18 | A time lag device for use in connection with a tripping device of an electric circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB220041A GB542893A (en) | 1941-02-18 | 1941-02-18 | A time lag device for use in connection with a tripping device of an electric circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB542893A true GB542893A (en) | 1942-01-30 |
Family
ID=9735344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB220041A Expired GB542893A (en) | 1941-02-18 | 1941-02-18 | A time lag device for use in connection with a tripping device of an electric circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB542893A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2353759A1 (en) * | 1976-05-25 | 1977-12-30 | Mecman Ab | HYDRAULIC SHOCK ABSORBER |
-
1941
- 1941-02-18 GB GB220041A patent/GB542893A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2353759A1 (en) * | 1976-05-25 | 1977-12-30 | Mecman Ab | HYDRAULIC SHOCK ABSORBER |
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