GB781852A - Improvements in and relating to electromagnetic devices - Google Patents
Improvements in and relating to electromagnetic devicesInfo
- Publication number
- GB781852A GB781852A GB23286/53A GB2328653A GB781852A GB 781852 A GB781852 A GB 781852A GB 23286/53 A GB23286/53 A GB 23286/53A GB 2328653 A GB2328653 A GB 2328653A GB 781852 A GB781852 A GB 781852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- knife
- edge
- armature
- aug
- recess
- 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
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/24—Parts rotatable or rockable outside coil
- H01H50/26—Parts movable about a knife edge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H67/00—Electrically-operated selector switches
- H01H67/22—Switches without multi-position wipers
- H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
781,852. Electric selectors. TELEPHONE MANUFACTURING CO., Ltd. Aug. 24, 1954 [Aug. 24, 1953], No. 23286/53. Class 40 (4). A bar-relay selector of the type described in Specification 728,891 comprises an armature with a knife-edge entering a recess in a support, the knife-edge carrying a non-magnetic member serving to define the residual gap in the magnetic circuit when the armature is in operated position and serving also to retain the knife-edge in the recess. Figures 1-8 (not shown) and the related description are identical with those of Specification 781,851 but the claims differ. The spring member 45 carrying interference member 46 may be modified as shown in Fig. 9, projections 45c engaging under a spring plate 52, Fig. 10.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB23285/53A GB781851A (en) | 1953-08-24 | 1953-08-24 | Improvements in and relating to electromagnetic devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB781852A true GB781852A (en) | 1957-08-28 |
Family
ID=10193181
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23286/53A Expired GB781852A (en) | 1953-08-24 | 1953-08-24 | Improvements in and relating to electromagnetic devices |
GB23285/53A Expired GB781851A (en) | 1953-08-24 | 1953-08-24 | Improvements in and relating to electromagnetic devices |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23285/53A Expired GB781851A (en) | 1953-08-24 | 1953-08-24 | Improvements in and relating to electromagnetic devices |
Country Status (3)
Country | Link |
---|---|
US (1) | US2821598A (en) |
BE (2) | BE531359A (en) |
GB (2) | GB781852A (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2476789A (en) * | 1944-03-13 | 1949-07-19 | Ericsson Telefon Ab L M | Contact selecting finger for crossbar switches |
US2553517A (en) * | 1946-02-15 | 1951-05-15 | Isserstedt Siegfreid Gordon | Electrical remote control |
NL157717B (en) * | 1949-12-08 | Marvin Henry Grove En Julie Mi | DEVICE FOR GENERATING A GAS PRESSURE SIGNAL TO BE USED FOR CALIBRATION AND TESTING OF EQUIPMENT RESPONDING TO PRESSURE CHANGE. |
-
0
- BE BE531358D patent/BE531358A/xx unknown
- BE BE531359D patent/BE531359A/xx unknown
-
1953
- 1953-08-24 GB GB23286/53A patent/GB781852A/en not_active Expired
- 1953-08-24 GB GB23285/53A patent/GB781851A/en not_active Expired
-
1954
- 1954-08-23 US US451374A patent/US2821598A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2821598A (en) | 1958-01-28 |
BE531359A (en) | |
GB781851A (en) | 1957-08-28 |
BE531358A (en) |
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