GB307097A - Improvements relating to actuating mechanisms for movable devices such, for example,as covers for casings - Google Patents

Improvements relating to actuating mechanisms for movable devices such, for example,as covers for casings

Info

Publication number
GB307097A
GB307097A GB3225127A GB3225127A GB307097A GB 307097 A GB307097 A GB 307097A GB 3225127 A GB3225127 A GB 3225127A GB 3225127 A GB3225127 A GB 3225127A GB 307097 A GB307097 A GB 307097A
Authority
GB
United Kingdom
Prior art keywords
cover
casing
toggle
covers
raised
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
GB3225127A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB3225127A priority Critical patent/GB307097A/en
Publication of GB307097A publication Critical patent/GB307097A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/24Shutters or guards

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

307,097. British Thomson-Houston Co., Ltd., and Heath, H. C. Nov. 30, 1927. Fastenings for casing and like covers.-Covers of tanks or casings (particularly the lids of switch tanks and other electrical apparatus, such as that described in Specification 306,862, [Class 38 (v), Electric switches &c.], are raised by a screw-operated toggle 4, 5 hinged on the casing and connected to the cover by means of a pin on the cover working in an open slot 6 in the toggle. The arrangement is such that the open end of the slot extends over uprights 9 attached to the casing, and complete withdrawal of the cover is prevented until the toggle has been straightened a certain amount, and the cover raised a corresponding amount. In the arrangement shown, double toggles (one at each side) are provided at each end of the casing. All the toggles are interconnected and they are operated by a single handactuated screw-pin 11 passing through the pivot pin of one of them. Straps 15 on the members 5 of the toggle surround the uprights and serve to guide the members. When the cover has been adequately raised, as shown in dotted lines, the cover can be removed entirely.
GB3225127A 1927-11-30 1927-11-30 Improvements relating to actuating mechanisms for movable devices such, for example,as covers for casings Expired GB307097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3225127A GB307097A (en) 1927-11-30 1927-11-30 Improvements relating to actuating mechanisms for movable devices such, for example,as covers for casings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3225127A GB307097A (en) 1927-11-30 1927-11-30 Improvements relating to actuating mechanisms for movable devices such, for example,as covers for casings

Publications (1)

Publication Number Publication Date
GB307097A true GB307097A (en) 1929-02-28

Family

ID=10335687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3225127A Expired GB307097A (en) 1927-11-30 1927-11-30 Improvements relating to actuating mechanisms for movable devices such, for example,as covers for casings

Country Status (1)

Country Link
GB (1) GB307097A (en)

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