GB483100A - Improvements in or relating to electromagnetic devices having variable reluctance - Google Patents
Improvements in or relating to electromagnetic devices having variable reluctanceInfo
- Publication number
- GB483100A GB483100A GB2836136A GB2836136A GB483100A GB 483100 A GB483100 A GB 483100A GB 2836136 A GB2836136 A GB 2836136A GB 2836136 A GB2836136 A GB 2836136A GB 483100 A GB483100 A GB 483100A
- Authority
- GB
- United Kingdom
- Prior art keywords
- portions
- knob
- winding
- electromagnetic
- reluctance
- 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
- H01H50/86—Means for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
- H01H50/88—Mechanical means, e.g. dash-pot
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
483,100. Electromagnetic relays. WEST & CO., Ltd., A.. and BUNYAN, J. Oct. 19, 1936, No. 28361. [Class 38 (v)] [Also in Group XXXV] An electromagnetic timing device comprises a field magnet and an armature the time taken for the armature to respond under given conditions being varied by varying the reluctance of the magnetic circuit of the field magnet. In the relay shown, the winding 1 is mounted on the centre limb of an E-shaped core 2. The control limb is of circular cross-section and is divided into two portions 4a, 4b in a plane at right-angles to its axis near one of its extremities. The adjacent surfaces of the two portions carry semicircular inserts 5a, 5b of non-magnetic material, and the outer portion 4b is mounted on a rod 6 which passes through a central bore in the other portion and carries a knob 7 and pointer 8 co-operating with a dial 9. The two portions are held together by a spring washer 10 between the knob 7 and the frame, and a thin non-magnetic washer 11 is provided between the portions to prevent them from sticking together. The reluctance of the magnetic circuit can be varied by rotating the knob 7. The winding 1 may constitute the timing winding. of the electromagnetic switch described in Specification 480,455.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE423967D BE423967A (en) | 1936-10-19 | ||
| GB2836136A GB483100A (en) | 1936-10-19 | 1936-10-19 | Improvements in or relating to electromagnetic devices having variable reluctance |
| FR827449D FR827449A (en) | 1936-10-19 | 1937-10-04 | Improvements to variable reluctance magnetic circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2836136A GB483100A (en) | 1936-10-19 | 1936-10-19 | Improvements in or relating to electromagnetic devices having variable reluctance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB483100A true GB483100A (en) | 1938-04-12 |
Family
ID=10274441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2836136A Expired GB483100A (en) | 1936-10-19 | 1936-10-19 | Improvements in or relating to electromagnetic devices having variable reluctance |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE423967A (en) |
| FR (1) | FR827449A (en) |
| GB (1) | GB483100A (en) |
-
0
- BE BE423967D patent/BE423967A/xx unknown
-
1936
- 1936-10-19 GB GB2836136A patent/GB483100A/en not_active Expired
-
1937
- 1937-10-04 FR FR827449D patent/FR827449A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE423967A (en) | |
| FR827449A (en) | 1938-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB749316A (en) | Improvements in or relating to electromagnetic relays | |
| GB941653A (en) | Improvements in or relating to magnetically controlled electric relays | |
| GB968562A (en) | Improvements in or relating to electromagnetic relays | |
| GB661471A (en) | Improvements in electromagnetic relays | |
| ES352092A1 (en) | Holding relay with operating characteristics which remain constant with fluctuations of temperature | |
| GB483100A (en) | Improvements in or relating to electromagnetic devices having variable reluctance | |
| GB559453A (en) | Improvements relating to magnetically operated electrical switches | |
| GB997404A (en) | Electro-magnetic relays | |
| GB424795A (en) | Improvements in or relating to electromagnetic relays | |
| GB478110A (en) | Improvements in or relating to electrical relays | |
| GB1099312A (en) | Electromagnetic relay | |
| GB675855A (en) | Improvements in or relating to electromagnetically operated apparatus | |
| GB446135A (en) | Improvements in and relating to electromagnetic time element devices | |
| GB743705A (en) | Improvements in or relating to movable coil relays of the magnetic contact type | |
| GB584050A (en) | Improvements in or relating to electromagnetic switches and relays | |
| GB883956A (en) | Electromagnetic relay | |
| GB582960A (en) | Improvements relating to electromagnetic relays | |
| GB748256A (en) | Improvements in or relating to electromagnetic control magnets | |
| GB594862A (en) | Improvement in electromagnetic vibratory interrupters | |
| GB479621A (en) | Improvements in and relating to electromagnetic control devices for circuit interrupters and switches | |
| GB768578A (en) | Improvements in or relating to moving coil electrical instrument | |
| GB542045A (en) | Improvements in electromagnets | |
| GB452461A (en) | Improvements in or relating to electro-magnetic relays or interrupters | |
| GB694785A (en) | Improvements in electrical impedance relays | |
| GB748218A (en) | Arrangement of electromagnetic control magnets preferably for electric switching apparatus |