GB600344A - Improvements in or relating to electric switches, switchgear and the like adapted for sparking-prevention - Google Patents
Improvements in or relating to electric switches, switchgear and the like adapted for sparking-preventionInfo
- Publication number
- GB600344A GB600344A GB3172545A GB3172545A GB600344A GB 600344 A GB600344 A GB 600344A GB 3172545 A GB3172545 A GB 3172545A GB 3172545 A GB3172545 A GB 3172545A GB 600344 A GB600344 A GB 600344A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- switch
- fuse
- rollers
- switches
- 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
- 239000004020 conductor Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
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
- H01H1/16—Contacts characterised by the manner in which co-operating contacts engage by abutting by rolling; by wrapping; Roller or ball contacts
Abstract
600,344. Mechanical switches ; switch covers. BROOKHIRST SWITCHGEAR, Ltd., and CHALMERS, W. R. Nov. 24, 1945, Nos. 31725/45 and 18660/46. [Class 38 (v)] - The insulating housings 10, 12 of the co-operating contacts of a switch are designed to afford a very small separation in the vicinity of the contacts. Pairs of roller contacts 19 bridge fixed contacts 15 or 16 and are carried in slots in the barrel 12 which is rotated by a spindle 13. The rollers may be grooved and connected by a flexible conductor 23 so that springs 26 on forks 25 provide individual contact pressure. Two pairs of rollers may bridge each pair of fixed contacts, Fig. 9 (not shown). Preferably, the fixed contacts protrude slightly within the housing 10 and outward movement of the rollers is limited to prevent them from touching the housing 10. Spring-controlled plunger or pivoted contacts may replace the roller contacts. A number of these switches may be incorporated in a fuse-switch, Fig. 8, fixed contacts being connected to both terminals of each fuse 36 to enable the fuses to be completely isolated by the switches. The cover 35 of the fuse-switch is interlocked by an arm 33 secured to the operating spindle 30.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB600344A true GB600344A (en) | 1948-04-06 |
Family
ID=1742682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3172545A Expired GB600344A (en) | 1945-11-24 | Improvements in or relating to electric switches, switchgear and the like adapted for sparking-prevention |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB600344A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2834842A (en) * | 1955-12-19 | 1958-05-13 | Alto Scient Company | Detent mechanism, especially for rotary switches |
| US3184559A (en) * | 1960-06-07 | 1965-05-18 | Oxley Robert Frederick | Multi-contact rotary electric switch with resiliently biased conductive pins |
| FR2425713A1 (en) * | 1978-05-09 | 1979-12-07 | Antivols Simplex Sa | Rotary switch used in motor vehicle - has cylinder rotor contacts which bridge pairs of fixed contacts at set angular positions of rotor |
-
1945
- 1945-11-24 GB GB3172545A patent/GB600344A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2834842A (en) * | 1955-12-19 | 1958-05-13 | Alto Scient Company | Detent mechanism, especially for rotary switches |
| US3184559A (en) * | 1960-06-07 | 1965-05-18 | Oxley Robert Frederick | Multi-contact rotary electric switch with resiliently biased conductive pins |
| FR2425713A1 (en) * | 1978-05-09 | 1979-12-07 | Antivols Simplex Sa | Rotary switch used in motor vehicle - has cylinder rotor contacts which bridge pairs of fixed contacts at set angular positions of rotor |
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