GB813127A - Improvements in or relating to rotary electric switches - Google Patents

Improvements in or relating to rotary electric switches

Info

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
Application number
GB1312856A
Inventor
William Alan Bowdler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANTON Ltd
Original Assignee
SANTON Ltd
Filing date
Publication date
Application filed by SANTON Ltd filed Critical SANTON Ltd
Publication of GB813127A publication Critical patent/GB813127A/en
Expired legal-status Critical Current

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.
GB1312856A 1956-04-30 Improvements in or relating to rotary electric switches Expired GB813127A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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