GB698821A - Improvements in snap-action electric switches - Google Patents
Improvements in snap-action electric switchesInfo
- Publication number
- GB698821A GB698821A GB722151A GB722151A GB698821A GB 698821 A GB698821 A GB 698821A GB 722151 A GB722151 A GB 722151A GB 722151 A GB722151 A GB 722151A GB 698821 A GB698821 A GB 698821A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rigid member
- stops
- spring
- snap
- contacts
- 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
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
- H01H23/16—Driving mechanisms
- H01H23/164—Driving mechanisms with rectilinearly movable member carrying the contacts
Landscapes
- Push-Button Switches (AREA)
- Telephone Set Structure (AREA)
- Handcart (AREA)
Abstract
698,821. Snap-action switches. TELEPHONE MANUFACTURING CO., Ltd. March 24, 1952. [March 28, 1951 ; Oct. 17, 1951], Nos. 7221/51 and 24262/51. Class 38 (v) A switch has a toggle mechanism with a compression spring 3 and a rigid member 1 pivoted together at 2, the movement of the toggle mechanism being limited by stops acting on an intermediate portion of the rigid member, the end of the rigid member 1 remote from the spring engaging a contactmaking member. In the double-pole switch of Fig. 2, two snap-acting toggles are provided, each rigid member 1 engaging a contact-carrying spring blade 12. The stops are provided by the sides of slots 14 in upstanding ears 15, with which projections 16 on the members 1 co-operate. The pivots 2 are slidable in slots (not shown) in the operating dolly 6, which has bores 4 housing the springs 3. When the dolly is moved from one position to the other, the pivots 2 are moved through the dead-centre position to cause the toggles to snap over to open or close the contacts. In the event of spring breakage or welding of the contacts, positive actuation is provided by the rocking of the rigid members 1 about the stops. In a modification, Fig. 5, the rigid member co-operates with stops 70, 71 and is effective to move a rectilinearlyslidable insulating contact-carrier 50. The carrier slides on ball bearings 53 and carries spring-biased bridging contacts 75, 76. In a further construction, Fig. 4 (not shown) the contact carrier is metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB722151A GB698821A (en) | 1951-03-28 | 1951-03-28 | Improvements in snap-action electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB722151A GB698821A (en) | 1951-03-28 | 1951-03-28 | Improvements in snap-action electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB698821A true GB698821A (en) | 1953-10-21 |
Family
ID=9828952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB722151A Expired GB698821A (en) | 1951-03-28 | 1951-03-28 | Improvements in snap-action electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB698821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19704838A1 (en) * | 1997-02-08 | 1998-08-13 | Abb Patent Gmbh | Electrical switching device |
-
1951
- 1951-03-28 GB GB722151A patent/GB698821A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19704838A1 (en) * | 1997-02-08 | 1998-08-13 | Abb Patent Gmbh | Electrical switching device |
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