GB594736A - Improvements in and relating to electric fuses - Google Patents

Improvements in and relating to electric fuses

Info

Publication number
GB594736A
GB594736A GB14354/45A GB1435445A GB594736A GB 594736 A GB594736 A GB 594736A GB 14354/45 A GB14354/45 A GB 14354/45A GB 1435445 A GB1435445 A GB 1435445A GB 594736 A GB594736 A GB 594736A
Authority
GB
United Kingdom
Prior art keywords
fuse
colour
mercury
sulphide
june
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
GB14354/45A
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
Publication of GB594736A publication Critical patent/GB594736A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse

Abstract

594,736. Fusible cut-outs. BRITISH THOMSON-HOUSTON CO., Ltd. June 7, 1945, No. 14354. Convention date, June 9, 1944. [Class 38 (i)] In an electric fuse of the enclosed type, an indicator which changes colour upon operation of the fuse comprises a film of selenium sulphide on the inside surface of a transparent housing and adapted to change colour when mercury vapour is released on blowing of the fuse. In a modification, anhydrous Cobaltous Chloride and water vapour are used. As shown, the fuse is provided with a fusible element 14 in parallel with the main elements 6, 7 and including a circuit interrupting device 15 ; for example, a glass capsule containing mercury. Selenium sulphide is provided on the inner surface of a glass housing 1, the arrangement being such that when the fuse blows the capsule is destroyed and the mercury is vaporized to change the colour of the sulphide. Specifications 528,629 and 547,377 are referred to.
GB14354/45A 1944-06-09 1945-06-07 Improvements in and relating to electric fuses Expired GB594736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US594736XA 1944-06-09 1944-06-09

Publications (1)

Publication Number Publication Date
GB594736A true GB594736A (en) 1947-11-18

Family

ID=22023174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14354/45A Expired GB594736A (en) 1944-06-09 1945-06-07 Improvements in and relating to electric fuses

Country Status (1)

Country Link
GB (1) GB594736A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009058596A1 (en) * 2007-10-29 2009-05-07 Cooper Technologies Company Fuse with fuse state indicator
US7812704B2 (en) 2003-07-08 2010-10-12 Cooper Technologies Company Fuse with fuse state indicator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7812704B2 (en) 2003-07-08 2010-10-12 Cooper Technologies Company Fuse with fuse state indicator
US7932805B2 (en) 2003-07-08 2011-04-26 Cooper Technologies Company Fuse with fuse state indicator
WO2009058596A1 (en) * 2007-10-29 2009-05-07 Cooper Technologies Company Fuse with fuse state indicator
US8269597B2 (en) 2007-10-29 2012-09-18 Cooper Technologies Company Fuse with fuse state indicator

Similar Documents

Publication Publication Date Title
GB594736A (en) Improvements in and relating to electric fuses
GB1007417A (en) Improvements in cartridge fuses
GB505391A (en) Improvements relating to protective apparatus for compressed air plant
BE591806A (en) Compressed air circuit breaker with multiple breaking points
GB414670A (en) Improvements in or relating to electric blasting fuses
GB609745A (en) Improvements in and relating to fuse switches
GB1353318A (en) Electrical fuses
GB515747A (en) Improvements in or relating to electrical fuses
GB586586A (en) Improvements in or relating to fusible elements for electric fuses
GB637961A (en) Improvements in or relating to fusible electric cut-outs
GB806477A (en) Improvements in or relating to electric fuses
GB593784A (en) Improvements in and relating to fuse devices
GB517905A (en) Improvements in or relating to indicators for electric cartridge fuse links
ES256062A3 (en) Improvements in fuses for high voltage electrical current (Machine-translation by Google Translate, not legally binding)
GB577848A (en) Improvements in or relating to fuse-carriers for electric fuses
GB797068A (en) Improvements in or relating to electric fuses
GB359376A (en) Improvements in and relating to electric cut outs or fuses
GB929460A (en) Improvements in or relating to electric fusebases
GB273057A (en) Improvements in the mounting of cartridge type electric fuses
GB586240A (en) Improvements in and relating to safety fuses for electric circuit systems
GB864017A (en) Improvements in electrical fuses
GB605980A (en) Improvements in or relating to electric fuses
CA528440A (en) Combination fuse cutout and loadbreak
GB693887A (en) Automatic electric safety switch
GB629752A (en) Improvements in or relating to fusible electric cut-outs