GB401017A - Improvements in electro-magnetically-operated electric switches - Google Patents
Improvements in electro-magnetically-operated electric switchesInfo
- Publication number
- GB401017A GB401017A GB1353832A GB1353832A GB401017A GB 401017 A GB401017 A GB 401017A GB 1353832 A GB1353832 A GB 1353832A GB 1353832 A GB1353832 A GB 1353832A GB 401017 A GB401017 A GB 401017A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pawl
- discs
- pins
- switch
- ratchet
- 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
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
- H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
401,017. Electromagnetic switches; electrically-tripped switches. HARVEY, T., 348, St. Georges Road, Glasgow. May 11, 1932, No. 13538. [Class 38 (v).] In a switch of the kind in which the circuit is alternately closed and opened through a pawl and ratchet or pinwheel device by successive energizations of a winding 1, the movable contact-member 22 of the switch is carried by a shaft 21 adapted to be rocked by the engagement of an arm 20 on the shaft with one of a pair of spaced pins 14 which project from one side of the ratchet or pin wheel. In the construction shown in Fig. 2, a pawl 16 pivoted to a rod 18 connected to the core of the winding 1 is adapted to engage pins 14, 15 connecting a pair of discs 10, alternate pins 14 projecting from the face of one of the discs. A retaining pawl 19 prevents backward rotation of the discs. The rod 18 may carry additional contacts 23 adapted to close the circuit of a second solenoid, so that a number of switches may be operated simultaneously. In a modification, Fig. 3, the pawl 26 is carried by an arm 27 connected to the armature of an electromagnet 29, and cooperates with a ratchet wheel 24 provided with the pins 14. A coil 33 may be adapted to act on any suitable part of the mechanism, such as the retaining pawl 19, to release the discs 10 or ratchet wheel 24, and allow the switch to open, in the event of an overload. The rod 18 may carry a handle 18<1> for manual operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1353832A GB401017A (en) | 1932-05-11 | 1932-05-11 | Improvements in electro-magnetically-operated electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1353832A GB401017A (en) | 1932-05-11 | 1932-05-11 | Improvements in electro-magnetically-operated electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB401017A true GB401017A (en) | 1933-11-09 |
Family
ID=10024786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1353832A Expired GB401017A (en) | 1932-05-11 | 1932-05-11 | Improvements in electro-magnetically-operated electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB401017A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804935A (en) * | 2021-08-19 | 2021-12-17 | 李嘉齐 | Three-chamber structure intelligent ammeter box |
-
1932
- 1932-05-11 GB GB1353832A patent/GB401017A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804935A (en) * | 2021-08-19 | 2021-12-17 | 李嘉齐 | Three-chamber structure intelligent ammeter box |
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