GB104233A - Improvements in or relating to Over-load Electric Switches or Cut-outs. - Google Patents
Improvements in or relating to Over-load Electric Switches or Cut-outs.Info
- Publication number
- GB104233A GB104233A GB347416A GB347416A GB104233A GB 104233 A GB104233 A GB 104233A GB 347416 A GB347416 A GB 347416A GB 347416 A GB347416 A GB 347416A GB 104233 A GB104233 A GB 104233A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- cam
- locked
- retarding
- springs
- 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
- Friction Gearing (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
104,233. Wijk, P. G. van. March 8, 1916. Automatic circuit-breakers; retarding-devices.- An automatic overload cut-out comprises a switch arm 1 closed by hand and locked in the closed position against the action of the weight 4 by the pawl 2, which is raised when the normally locked plunger 3, acted on by the spring 8, is released. The plunger is locked in the inoperative position shown, by the circular part of the periphery of a cam 10, the shaft of which drives through speedraising gearing the drum of a centrifugal brake, Fig. 4, having rollers 27 which move outwards against the action of springs 28 and frictionally engage the inside of a fixed hollow cylinder 23 at the limit speed. With excessive current in the solenoid 14, the core 13 is attracted and the cam rotated through the intermediary of a steel wire 30 attached to the core. After an interval of time, depending on the adjustment of the springs 28 of the retarding-device, a gap in the cam is brought into line with a roller 9 on the end of the plunger 3, which is then free to rise and knock out the latch.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DENDAT294803D DE294803C (en) | 1916-03-08 | ||
| NL2343D NL2343C (en) | 1916-03-08 | ||
| GB347416A GB104233A (en) | 1916-03-08 | 1916-03-08 | Improvements in or relating to Over-load Electric Switches or Cut-outs. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB347416A GB104233A (en) | 1916-03-08 | 1916-03-08 | Improvements in or relating to Over-load Electric Switches or Cut-outs. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB104233A true GB104233A (en) | 1917-03-01 |
Family
ID=32244368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB347416A Expired GB104233A (en) | 1916-03-08 | 1916-03-08 | Improvements in or relating to Over-load Electric Switches or Cut-outs. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE294803C (en) |
| GB (1) | GB104233A (en) |
| NL (1) | NL2343C (en) |
-
0
- NL NL2343D patent/NL2343C/xx active
- DE DENDAT294803D patent/DE294803C/de active Active
-
1916
- 1916-03-08 GB GB347416A patent/GB104233A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE294803C (en) | |
| NL2343C (en) |
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