GB526940A - Improvements in or relating to electromagnetic interrupters - Google Patents
Improvements in or relating to electromagnetic interruptersInfo
- Publication number
- GB526940A GB526940A GB991939A GB991939A GB526940A GB 526940 A GB526940 A GB 526940A GB 991939 A GB991939 A GB 991939A GB 991939 A GB991939 A GB 991939A GB 526940 A GB526940 A GB 526940A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- spring
- relating
- electromagnetic interrupters
- circuit
- 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
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/74—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter
- H01H50/76—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter using reed or blade spring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
526,940. Electromagnetic interrupters. ERICSSON TELEPHONES, Ltd., and DISTIN, L. S. March 30, 1939, No. 9919. [Class 38 (v)] In an elctromagnetic interrupter the armature 9 forms part of a vibratory mass pivotally supported at or near its centre of gravity by an S- shaped spring 8. The armature is adapted to be attracted to a pole piece 5 and it carries two pegs 11 adapted to engage a contact spring 12 arranged between them, thereby breaking at 13 the energizing circuit of the electromagnet 1. The spring 12 may also move between contacts 14, 15 connected in a circuit such as described in Specification 470,355 whereby the device serves to convert D.C. to A.C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB991939A GB526940A (en) | 1939-03-30 | 1939-03-30 | Improvements in or relating to electromagnetic interrupters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB991939A GB526940A (en) | 1939-03-30 | 1939-03-30 | Improvements in or relating to electromagnetic interrupters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB526940A true GB526940A (en) | 1940-09-27 |
Family
ID=9881188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB991939A Expired GB526940A (en) | 1939-03-30 | 1939-03-30 | Improvements in or relating to electromagnetic interrupters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB526940A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639345A (en) * | 1949-05-18 | 1953-05-19 | Tung Sol Electric Inc | Electric control device |
-
1939
- 1939-03-30 GB GB991939A patent/GB526940A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639345A (en) * | 1949-05-18 | 1953-05-19 | Tung Sol Electric Inc | Electric control device |
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