GB162673A - Improvements in or relating to electro-magnetic relays or like devices - Google Patents
Improvements in or relating to electro-magnetic relays or like devicesInfo
- Publication number
- GB162673A GB162673A GB12370/21A GB1237021A GB162673A GB 162673 A GB162673 A GB 162673A GB 12370/21 A GB12370/21 A GB 12370/21A GB 1237021 A GB1237021 A GB 1237021A GB 162673 A GB162673 A GB 162673A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- main
- core
- auxiliary
- main armature
- 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
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/20—Non-polarised relays with two or more independent armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Breakers (AREA)
Abstract
162,673. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Erickson, J.). May 6,1920, [Convention date]. Electromagnetic and magnetic actuation.-Relates to relays, for use in automatic telephone systems &c., in which the relay is provided with a main armature and an auxiliary member or armature, so arranged as to enable the main armature to take up one of two stable attracted positions, corresponding to comparatively strong and week energizing currents, whereby one or other of two switching operations is performed by the armature. Figs. 1 and 3 show one form of relay comprising a core 2 with a pair of windings, supported by a heel-piece 3, which also carries the contact springs. The main armature 4, which is pivoted at 5, is perforated over the centre of the core to receive a rivet-shaped auxiliary armature 13 of soft iron, having a brass sheath 14. The enlarged head 12 of the auxiliary armature 13 is arranged to move within a housing 8 secured by screws 9, 10 to the main armature. When the core is feebly energized, the main portion of the flux passes through the auxiliary armature, which is attracted to the core, thereby closing a secondary magnetic circuit, which renders the attracted position a stable one, and as the auxiliary armature carries the main armature, the centre contact spring is forced out of engagement with its resting contact. The secondary magnetic circuit through the armature 13 includes the air gap formed by the brass sheath 14, and if the energizing current is steadily increased a critical point is reached at which the leakage from this magnetic circuit between the main armature and the core is sufficient to attract the main armature, thereby completing the second circuit, during which motion the auxiliary armature 13 moves upwards within the casing 8. In order to permit of adjustment of the air gap in the secondary magnetic circuit, the modified form of relay shown in Fig. 5 is employed. The main armature 34 only partially covers the end of the core, an L-shaped auxiliary armature 40 being secured by non-magnetic rivets 45, 46 to a non-magnetic member 42 pivoted coaxially with the main armature 34, the lower end of rivets 45, 46 resting on the main armature 34. An iron screw 41 passes through the auxiliary armature 40, an adjustable gap separating its lower end from the main armature 34, and spring washers 44, 45 retaining the screw 41 in its adjusted position. As the gap Between the auxiliary armature 40 and the core is smaller than that between the main armature 34 and the core, the relay operates in the manner above-described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US379236A US1651684A (en) | 1920-05-06 | 1920-05-06 | Electromagnetic relay |
Publications (1)
Publication Number | Publication Date |
---|---|
GB162673A true GB162673A (en) | 1922-02-16 |
Family
ID=23496396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12370/21A Expired GB162673A (en) | 1920-05-06 | 1921-04-29 | Improvements in or relating to electro-magnetic relays or like devices |
Country Status (4)
Country | Link |
---|---|
US (1) | US1651684A (en) |
DE (1) | DE388940C (en) |
FR (1) | FR535113A (en) |
GB (1) | GB162673A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2441041A (en) * | 1941-04-10 | 1948-05-04 | Kellogg Switchboard & Supply | Two-step relay |
BE469127A (en) * | 1945-11-23 | |||
US2847621A (en) * | 1953-10-01 | 1958-08-12 | Pollak Corp Joseph | Relay switches |
GB201704847D0 (en) * | 2017-03-27 | 2017-05-10 | Zwipe As | Callibration method |
-
1920
- 1920-05-06 US US379236A patent/US1651684A/en not_active Expired - Lifetime
-
1921
- 1921-04-29 GB GB12370/21A patent/GB162673A/en not_active Expired
- 1921-05-06 FR FR535113D patent/FR535113A/en not_active Expired
- 1921-05-10 DE DEA35444D patent/DE388940C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR535113A (en) | 1922-04-10 |
US1651684A (en) | 1927-12-06 |
DE388940C (en) | 1924-01-25 |
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