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
GB14783/42A
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 LtdfiledCriticalBritish Thomson Houston Co Ltd
Publication of GB554219ApublicationCriticalpatent/GB554219A/en
H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
H01H71/10—Operating or release mechanisms
H01H71/12—Automatic release mechanisms with or without manual release
H01H71/14—Electrothermal mechanisms
H01H71/18—Electrothermal mechanisms with expanding rod, strip, or wire
Landscapes
High-Tension Arc-Extinguishing Switches Without Spraying Means
(AREA)
Contacts
(AREA)
Abstract
554,219. Iron-nickel alloy. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 21, 1942. No. 14783. Convention date. Oct. 21, 1941. Drawings to Specification. [Class 82 (i)] [Also in Group XXXVII] An alloy of small thermal expansibility for part of a thermal switch is composed of 36 per cent. of nickel, 0-2 per cent. of carbon and the remainder of iron. Specifications 423,897 and 424,746 are referred to.
GB14783/42A1941-10-211942-10-21Improvements in and relating to thermal electric switches
ExpiredGB554219A
(en)