GB583635A - Improvements in or relating to electric switches with contact-spring pile-ups - Google Patents
Improvements in or relating to electric switches with contact-spring pile-upsInfo
- Publication number
- GB583635A GB583635A GB2216044A GB2216044A GB583635A GB 583635 A GB583635 A GB 583635A GB 2216044 A GB2216044 A GB 2216044A GB 2216044 A GB2216044 A GB 2216044A GB 583635 A GB583635 A GB 583635A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- springs
- lever
- contact
- central position
- 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
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
- H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
- H01H1/28—Assembly of three or more contact-supporting spring blades
Landscapes
- Switches With Compound Operations (AREA)
- Mechanisms For Operating Contacts (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
583,635. Tumbler switches; retractive switches. ERICSSON TELEPHONES, Ltd., ANSON, B. 0., and DAVIS, J. H. Nov. 10, 1944, No. 22160. [Class 38 (v)] In a switch, such as a telephone operator's switch, a lever 2 makes camming engagement with springs 6, 10, which are mechanically coupled with lost motion to springs 8, 12, and the tendency of the latter springs to adhere to or follow the former, and so break contact, if the lever 2 overshoots its central position, partially operating a spring 6 or 10, is prevented by providing spacing projections. Each of the springs 8, 12 may thus be separated from its adjacent spring 6, 10 by a transverse ridge 21, 22, a rivet head or distance piece, a turnedover tip, or by the projection of the contact to the rear of the spring. A ball 20, biassed by a spring 17, engages a recess in the cam 3 when the lever 2 is in the central position. The lever 2 may automatically return to its central position when released, or it may be retained set in an outer position. The Provisional Specification refers also to the springs being spaced apart by a set in one spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2216044A GB583635A (en) | 1944-11-10 | 1944-11-10 | Improvements in or relating to electric switches with contact-spring pile-ups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2216044A GB583635A (en) | 1944-11-10 | 1944-11-10 | Improvements in or relating to electric switches with contact-spring pile-ups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB583635A true GB583635A (en) | 1946-12-23 |
Family
ID=10174912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2216044A Expired GB583635A (en) | 1944-11-10 | 1944-11-10 | Improvements in or relating to electric switches with contact-spring pile-ups |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB583635A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2328798A (en) * | 1997-08-25 | 1999-03-03 | Daewoo Electronics Co Ltd | Knob assembly for use in electronic appliances |
-
1944
- 1944-11-10 GB GB2216044A patent/GB583635A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2328798A (en) * | 1997-08-25 | 1999-03-03 | Daewoo Electronics Co Ltd | Knob assembly for use in electronic appliances |
| US6034336A (en) * | 1997-08-25 | 2000-03-07 | Daewoo Electronics Co., Ltd. | Knob assembly for use in electronic appliances |
| GB2328798B (en) * | 1997-08-25 | 2001-06-06 | Daewoo Electronics Co Ltd | Knob assembly for use in electronic appliances |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB653509A (en) | Electric multi-pole switches | |
| GB1298262A (en) | Improvements in or relating to push button switches | |
| GB583635A (en) | Improvements in or relating to electric switches with contact-spring pile-ups | |
| GB618226A (en) | Improvements in and relating to electric snap-action switches | |
| GB1187468A (en) | Push-Button Assembly | |
| GB1171681A (en) | Illuminated Push Button Switch | |
| GB609840A (en) | Electric switch plug and socket connectors | |
| GB875203A (en) | Push button electric switch | |
| GB643973A (en) | Improvements in or relating to private telephone exchange systems | |
| GB614694A (en) | Improvements in or relating to electric switches of the "push-bar" type for lamp-holder sockets and the like | |
| GB714762A (en) | Improvements in and relating to electric tumbler switches | |
| GB703018A (en) | Improvements relating to dolly-operated electric switches | |
| GB1523277A (en) | Electric switches | |
| GB1030054A (en) | Improvements relating to electric switches | |
| GB643555A (en) | Improvements in and relating to electrical press-button switches | |
| GB759927A (en) | Improvements in electric switch lamp holders | |
| GB623917A (en) | Improvements in or relating to electric switches | |
| GB567139A (en) | Improvements in and relating to electric switches of the push-button type | |
| GB709630A (en) | Improvements in or relating to electric plugs | |
| GB614619A (en) | Improvements in electric tumbler switches | |
| GB558543A (en) | Improvements in or relating to electric wall switches | |
| GB1098309A (en) | Improvements in or relating to electric switches | |
| GB616053A (en) | Improvements relating to snap-action electric switches | |
| GB1084899A (en) | A lockable push-button switch | |
| GB580946A (en) | Improvements in electric tumbler switches particularly for alternating current |