GB760222A - Improvements in and relating to electromagnetic vibrators - Google Patents
Improvements in and relating to electromagnetic vibratorsInfo
- Publication number
- GB760222A GB760222A GB3161952A GB3161952A GB760222A GB 760222 A GB760222 A GB 760222A GB 3161952 A GB3161952 A GB 3161952A GB 3161952 A GB3161952 A GB 3161952A GB 760222 A GB760222 A GB 760222A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reed
- contacts
- coil
- group xxxvii
- dec
- 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)
- Electromagnets (AREA)
Abstract
760,222. Converting. WALTER INSTRUMENTS, Ltd. Dec. 9, 1953 [Dec. 12, 1952], No. 31619/52. Class 38 (2). [Also in Group XXXVII] A vibrator (see Group XXXVII) having an operating coil 14 which vibrates a reed contact 16 to alternately engage a pair of contacts 19, 20 is employed in a system for obtaining A.C. from D.C. source 33, the contacts 19, 20 being connected through terminals 28, 29 across the ends of a resistor 31 and the reed 16 being connected through a terminal 30 to one end of the operating coil 14. On closure of the switch 32 the reed is attracted whereupon the contacts 16, 20 engage and the coil 14 is shortcircuited. The reed 16 thus springs back and engages contact 19 and the coil is re-energized to attract the armature again. The closure of contacts 16, 19 and 16, 20 also causes the shortcircuiting of the upper and lower parts, respectively, of the resistor 31, which in turn causes a momentary increase in the current in the corresponding half of the transformer primary 34 whereby an A.C. voltage having a frequency equal to the vibratory frequency of the reed is induced in the transformer secondary 36. Specification 694,500, [Group XXXVII], is referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7700354,A NL183483B (en) | 1952-12-12 | PHASELUS LOCK CHAIN. | |
| BE525015D BE525015A (en) | 1952-12-12 | ||
| GB3161952A GB760222A (en) | 1952-12-12 | 1952-12-12 | Improvements in and relating to electromagnetic vibrators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3161952A GB760222A (en) | 1952-12-12 | 1952-12-12 | Improvements in and relating to electromagnetic vibrators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB760222A true GB760222A (en) | 1956-10-31 |
Family
ID=10325860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3161952A Expired GB760222A (en) | 1952-12-12 | 1952-12-12 | Improvements in and relating to electromagnetic vibrators |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE525015A (en) |
| GB (1) | GB760222A (en) |
| NL (1) | NL183483B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2985015A (en) * | 1955-11-10 | 1961-05-23 | Raytheon Co | Depth indicating system |
-
0
- BE BE525015D patent/BE525015A/xx unknown
- NL NLAANVRAGE7700354,A patent/NL183483B/en unknown
-
1952
- 1952-12-12 GB GB3161952A patent/GB760222A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE525015A (en) | |
| NL183483B (en) |
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