GB536693A - Improvements in or relating to circuit-breakers with butt contacts - Google Patents
Improvements in or relating to circuit-breakers with butt contactsInfo
- Publication number
- GB536693A GB536693A GB3059939A GB3059939A GB536693A GB 536693 A GB536693 A GB 536693A GB 3059939 A GB3059939 A GB 3059939A GB 3059939 A GB3059939 A GB 3059939A GB 536693 A GB536693 A GB 536693A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- contact
- magnet
- spring
- toggle
- 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
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
Abstract
536,693. Switches, partly electromagnetic ; contacts. REYROLLE & CO., Ltd., A., and ROBERTSON, A. T. Nov. 22, 1939, No. 30599. [Class 38 (v)] An arrangement which provides for the maintenance of butt-contact pressure by a spring H and magnet J as wear of the contact occurs, comprises a support D with a fixed pivot E, a movable-contact lever C pivoted to D at D' and embraced by J, and a toggle F. G. which is pivoted to C and D at C<1>, D<2>, respectively, the spring H being enclosed between G and D, or alternatively between G and C so as to exert an additional pressure directly on the contacts. When the support D is rotated to closed position, the contacts A. B engage with the toggle nearly straight so that the resulting mechanical advantage of the magnet and spring H as the support D continues to rotate, is a maximum. Rotation of lever C however moves the toggle away from its nearly-extended position, so lessening the mechanical advantage. Magnet J co-operates with an armature K on lever G, whereby the mechanical advantage also maintains the contact-pressure against electromagnetic blow-out forces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3059939A GB536693A (en) | 1939-11-22 | 1939-11-22 | Improvements in or relating to circuit-breakers with butt contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3059939A GB536693A (en) | 1939-11-22 | 1939-11-22 | Improvements in or relating to circuit-breakers with butt contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB536693A true GB536693A (en) | 1941-05-23 |
Family
ID=10310157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3059939A Expired GB536693A (en) | 1939-11-22 | 1939-11-22 | Improvements in or relating to circuit-breakers with butt contacts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB536693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411247A (en) * | 2017-08-18 | 2019-03-01 | 日立电梯（中国）有限公司 | A kind of switch resilience-proof device |
-
1939
- 1939-11-22 GB GB3059939A patent/GB536693A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411247A (en) * | 2017-08-18 | 2019-03-01 | 日立电梯（中国）有限公司 | A kind of switch resilience-proof device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB551851A (en) | Improvements in or relating to snap-action electric switches | |
| GB536693A (en) | Improvements in or relating to circuit-breakers with butt contacts | |
| GB554086A (en) | Improvements in and relating to contact arrangements for electric switches | |
| GB563835A (en) | Improvements in and relating to means for preventing bouncing of electric switch contacts | |
| GB557725A (en) | Improvements in and relating to contact mountings, more particularly for centrifugally operated electric switches | |
| GB540338A (en) | Improvements in or relating to auxiliary switches for electromagnetic contactors andthe like | |
| GB801206A (en) | Improvements in or relating to electric tumbler switches | |
| GB541281A (en) | Improvements in or relating to electric switches having knuckling contacts | |
| GB511656A (en) | Improvements in or relating to quick break electric switches | |
| GB519605A (en) | Improvements in snap-action electric switches | |
| GB511625A (en) | Improvements in snap-action electric switches | |
| GB537356A (en) | Improvements relating to contacts for electric circuit breakers | |
| GB833336A (en) | Improvements in or relating to snap-action electric switches | |
| USRE17649E (en) | wilms | |
| GB487658A (en) | Improvements in and relating to electric switches operated by cams | |
| GB513143A (en) | Improvements in and connected with trip-operated mechanism for electric switches | |
| GB744474A (en) | Improvements in electro-magnetic switches | |
| GB990575A (en) | Electric switch | |
| GB511355A (en) | Improvements in and relating to thermostatic switches | |
| GB551804A (en) | Improvements in electromagnetic interrupters or switches | |
| GB364620A (en) | Improvements relating to automatic electric circuit breakers | |
| GB804644A (en) | Improvements relating to speed responsive switch actuating mechanisms | |
| GB928511A (en) | Improvements in and relating to electric switches | |
| GB709173A (en) | Improvements in or relating to electric switches having manual and automatic operation | |
| GB652792A (en) | Improvements in and relating to electric switches, particularly electromagnetically operated switches |