GB813127A - Improvements in or relating to rotary electric switches - Google Patents
Improvements in or relating to rotary electric switchesInfo
- Publication number
- GB813127A GB813127A GB1312856A GB1312856A GB813127A GB 813127 A GB813127 A GB 813127A GB 1312856 A GB1312856 A GB 1312856A GB 1312856 A GB1312856 A GB 1312856A GB 813127 A GB813127 A GB 813127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- closed
- switch
- relating
- open
- 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
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/12—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Switches With Compound Operations (AREA)
Abstract
813,127. Snap-action switches. SANTON Ltd., July 29, 1957 [April 30, 1956], No. 13128/56. Class 38 (5). A rotary switch assembly comprises a primary switch 6 mounted coaxially with a secondary switch 7, both switches being oper. ated simultaneously. Normally, contacts 8, 12 of the primary switch are closed and contacts 9, 10 of the secondary switch are open. The latter contacts are offset in relation to those of the primary switch so that just before one set of contacts 8, 12 open, contacts 9, 10 are closed and remain closed until the next set of contacts 8, 12 are closed, thereby preventing an open circuit when changing over from a load 14 to 15, or vice versa.
Publications (1)
Publication Number | Publication Date |
---|---|
GB813127A true GB813127A (en) | 1959-05-06 |
Family
ID=1724872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1312856A Expired GB813127A (en) | 1956-04-30 | Improvements in or relating to rotary electric switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB813127A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8658923B2 (en) | 2008-04-01 | 2014-02-25 | Ewac Holding B.V. | Electrical rotary switch with closing elements at stationary contact locations inhibiting spark discharge and/or with a locking spring member |
-
1956
- 1956-04-30 GB GB1312856A patent/GB813127A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8658923B2 (en) | 2008-04-01 | 2014-02-25 | Ewac Holding B.V. | Electrical rotary switch with closing elements at stationary contact locations inhibiting spark discharge and/or with a locking spring member |
US9653232B2 (en) | 2008-04-01 | 2017-05-16 | Ewac Holding B.V. | Electrical rotary switch with closing elements at stationary contact locations inhibiting spark discharge and/or with a locking spring member |
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