GB644670A - Improvements in converting systems involving electromagnetic vibrators - Google Patents
Improvements in converting systems involving electromagnetic vibratorsInfo
- Publication number
- GB644670A GB644670A GB11766/48A GB1176648A GB644670A GB 644670 A GB644670 A GB 644670A GB 11766/48 A GB11766/48 A GB 11766/48A GB 1176648 A GB1176648 A GB 1176648A GB 644670 A GB644670 A GB 644670A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- resistance
- vibration
- serves
- systems involving
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Relay Circuits (AREA)
Abstract
644,670. Converting. PLESSEY CO., Ltd. April 29, 1948, No. 11766. Convention date, May 2, 1947. [Class 38 (ii)] [Also in Group XXXVII] In a converter wherein the two halves 21, 22 of the primary of a transformer are alternately energized by a battery 24 through " interrupter " contacts 14, 16 by the vibration of a reed 10 maintained in vibration by a driving coil 12 and driving contacts 15, a resistance 30 is connected between the contacts 15 and 16. This resistance serves to prevent arcing at the contacts 15 since it diverts energy through the primary winding 22. It also serves to produce a more speedy de-energiza. tion of the coil since when the contacts 14 are engaged and the winding 21 is energized, this induces a current of opposite polarity in the circuit 22, 27, 12, 30, 26. The resistance 30 may take the form of a resistance spacer mounted side by side with the contact springs and insulating spacers of a contact-spring pile up, Fig. 2 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US644670XA | 1947-05-02 | 1947-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB644670A true GB644670A (en) | 1950-10-18 |
Family
ID=22056194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11766/48A Expired GB644670A (en) | 1947-05-02 | 1948-04-29 | Improvements in converting systems involving electromagnetic vibrators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB644670A (en) |
-
1948
- 1948-04-29 GB GB11766/48A patent/GB644670A/en not_active Expired
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