GB643953A - Improvements in or relating to high voltage disconnecting switches - Google Patents
Improvements in or relating to high voltage disconnecting switchesInfo
- Publication number
- GB643953A GB643953A GB18918/48A GB1891848A GB643953A GB 643953 A GB643953 A GB 643953A GB 18918/48 A GB18918/48 A GB 18918/48A GB 1891848 A GB1891848 A GB 1891848A GB 643953 A GB643953 A GB 643953A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- housing
- roller
- contact
- crank
- 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
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18856—Oscillating to oscillating
Landscapes
- Mechanisms For Operating Contacts (AREA)
Abstract
643,953. Air-break switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. July 14, 1948, No. 18918. Convention date, Aug. 21, 1947. [Class 38(v)] A double-throw, high-voltage air-break, disconnect switch comprises. a movable contact arm 40 engageable with either of two spaced fixed contacts 14, 20. The operating mechanism is similar to-that of Specification 563,924 and comprises a rotatable insulator 30 carrying a crank 34, 72, having a roller 74 co-operating with cam slots 78, 80 in a housing 42 pivoted at 66 on a fixed bracket 24 in which the insulator 30 is pivoted. The contact arm 40 is pivotable about its longitudinal axis in bearings 54 and 44 in the housing, and has a forked extension 50 engaging opposite sides of the crank 72. With the contacts 20, 40 in engagement, Fig. 1, counter-clockwise rotation of insulator 30 first causes the contact 40 to rotate about its longitudinal axis until it is released from spring contact 20. Further rotation of the insulator causes the roller 74 to enter the inclined part of slot 78 and pivot the housing and arm 40 clockwise, Fig. 2, about the axis 66, until the roller reaches the junction of slots 78, 80, when the arm 40 is substantially vertical. Continued rotation of the insulator, causes the roller 74 to enter slot 80 and the housing is tilted over to the right, Fig. 2, into a horizontal position where the contact arm 40 is rotated about its longitudinal axis into engagement with contact 14. The initial and final rotary movements of the contact 40 without pivotal movement of the housing are caused by the crank 72 engaging the forks 50 whilst the roller 74 is in horizontal portions of the slots 78, 80. The housing also carries a projection 82 which enters a notch 84 on the crank 34 when the arm 40 is vertical, so that continued rotation of the crank positively forces the arm 40 overcentre by means of the parts 82, 84, in case the roller 74 becomes jammed at the junction of slots 78, 80.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US769909A US2456502A (en) | 1947-08-21 | 1947-08-21 | Double throw switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB643953A true GB643953A (en) | 1950-09-27 |
Family
ID=25086866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18918/48A Expired GB643953A (en) | 1947-08-21 | 1948-07-14 | Improvements in or relating to high voltage disconnecting switches |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2456502A (en) |
| BE (1) | BE484365A (en) |
| FR (1) | FR970597A (en) |
| GB (1) | GB643953A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ299378B6 (en) * | 2007-02-13 | 2008-07-09 | Lekov, A. S. | Device for angular displacement of isolating blade turntable |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2697144A (en) * | 1950-09-27 | 1954-12-14 | Westinghouse Electric Corp | High voltage switch |
| US2727105A (en) * | 1951-10-12 | 1955-12-13 | Chance Co Ab | Sectionalizing switch gear |
| US2745919A (en) * | 1952-05-08 | 1956-05-15 | Chance Co Ab | High voltage air break switch assemblies |
| US3071662A (en) * | 1960-06-20 | 1963-01-01 | Ite Circuit Breaker Ltd | By-pass disconnect switch for circuit interrupters |
-
0
- BE BE484365D patent/BE484365A/xx unknown
-
1947
- 1947-08-21 US US769909A patent/US2456502A/en not_active Expired - Lifetime
-
1948
- 1948-07-14 GB GB18918/48A patent/GB643953A/en not_active Expired
- 1948-08-20 FR FR970597D patent/FR970597A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ299378B6 (en) * | 2007-02-13 | 2008-07-09 | Lekov, A. S. | Device for angular displacement of isolating blade turntable |
Also Published As
| Publication number | Publication date |
|---|---|
| BE484365A (en) | |
| FR970597A (en) | 1951-01-05 |
| US2456502A (en) | 1948-12-14 |
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