GB675855A - Improvements in or relating to electromagnetically operated apparatus - Google Patents
Improvements in or relating to electromagnetically operated apparatusInfo
- Publication number
- GB675855A GB675855A GB52449A GB52449A GB675855A GB 675855 A GB675855 A GB 675855A GB 52449 A GB52449 A GB 52449A GB 52449 A GB52449 A GB 52449A GB 675855 A GB675855 A GB 675855A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- flux
- jan
- extension
- holding
- 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
- 230000004907 flux Effects 0.000 abstract 4
- 201000005947 Carney Complex Diseases 0.000 abstract 1
- 235000019687 Lamb Nutrition 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/42—Auxiliary magnetic circuits, e.g. for maintaining armature in, or returning armature to, position of rest, for damping or accelerating movement
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
675,855. Electromagnets. SOUTH WALES SWITCHGEAR, Ltd., LAMB, H. A., and TERRY, R. G. Jan. 6, 1950 [Jan. 7, 1949], No. 524/49. Class 35. In a plunger type electromagnet, electromagnetic means effective in dependence on the position of the plunger are provided for holding the plunger in the unattracted position after the winding has been energized until the flux density in the main magnetic circuit has reached a predetermined value. As shown, the extension 1a of the housing and the disc 14 on the plunger 4 provide a lowreluctance path which holds the plunger in the lower position until the flux has built up in the main magnetic circuit including the core 12 which is struck by the rising plunger, the airgap thereby produced between flanges 12a and 1b causing a retarding action. In a modi. fication the lower end of the plunger is hollowed out to accommodate an additional coil which sets up flux in a local circuit including the extension 1a for holding the plunger while the main flux builds up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB52449A GB675855A (en) | 1949-01-07 | 1949-01-07 | Improvements in or relating to electromagnetically operated apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB52449A GB675855A (en) | 1949-01-07 | 1949-01-07 | Improvements in or relating to electromagnetically operated apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB675855A true GB675855A (en) | 1952-07-16 |
Family
ID=9705873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB52449A Expired GB675855A (en) | 1949-01-07 | 1949-01-07 | Improvements in or relating to electromagnetically operated apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB675855A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6120114A (en) * | 1996-08-20 | 2000-09-19 | Kelsey-Hayes Company | Solenoid coil structure and interconnection |
| US6498558B1 (en) | 2001-05-08 | 2002-12-24 | Kelsey-Hayes Company | Solenoid valve coil having an integrated bobbin and flux ring assembly |
| US6903647B2 (en) | 2002-05-08 | 2005-06-07 | Kelsey-Hayes Company | Solenoid valve coil having an integrated bobbin and flux ring assembly |
-
1949
- 1949-01-07 GB GB52449A patent/GB675855A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6120114A (en) * | 1996-08-20 | 2000-09-19 | Kelsey-Hayes Company | Solenoid coil structure and interconnection |
| US6352317B1 (en) | 1996-08-20 | 2002-03-05 | Kelsey-Hayes Company | Solenoid coil structure and interconnection |
| US6498558B1 (en) | 2001-05-08 | 2002-12-24 | Kelsey-Hayes Company | Solenoid valve coil having an integrated bobbin and flux ring assembly |
| US6903647B2 (en) | 2002-05-08 | 2005-06-07 | Kelsey-Hayes Company | Solenoid valve coil having an integrated bobbin and flux ring assembly |
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