GB429491A - Improvements in fusible releasing devices for electric switches - Google Patents

Improvements in fusible releasing devices for electric switches

Info

Publication number
GB429491A
GB429491A GB35935/34A GB3593534A GB429491A GB 429491 A GB429491 A GB 429491A GB 35935/34 A GB35935/34 A GB 35935/34A GB 3593534 A GB3593534 A GB 3593534A GB 429491 A GB429491 A GB 429491A
Authority
GB
United Kingdom
Prior art keywords
fusible
cartridge
casing
pin
spring
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
GB35935/34A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB429491A publication Critical patent/GB429491A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • 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

Landscapes

  • Fuses (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

429,491. Thermal switches. ANGELI, A., Papierm³hle, Berne, Switzerland. Dec. 14, 1934, No. 35935. [Class 38 (v)] A thermal switch comprises a metal casing 1 having a metal cap 10 and an insulating lining 3 in which is placed a fusible cartridge 11 having end caps 12 one being in contact with the cap 10 and the other in contact with a metal pin 4 urged upwards by a spring 5, and insulated from the casing 1. The cartridge 11 comprises a cylinder of fusible substance such as a cellulose product or horn, and having end caps 12 connected by a heating wire 13. The device is connected in circuit by means of a spring urged member 14, the current flowing through the pin 4, wire 13 and casing 1 which is held in a contact clip (not shown). On overload the heat of wire 13 melts the cartridge 11 which softens and deforms under the action of pin 4 and spring 5 so that the member 14 is released and breaks the circuit.
GB35935/34A 1933-09-27 1934-12-14 Improvements in fusible releasing devices for electric switches Expired GB429491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH171497T 1933-09-27

Publications (1)

Publication Number Publication Date
GB429491A true GB429491A (en) 1935-05-30

Family

ID=32471150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35935/34A Expired GB429491A (en) 1933-09-27 1934-12-14 Improvements in fusible releasing devices for electric switches

Country Status (6)

Country Link
US (1) US2014607A (en)
CH (1) CH171497A (en)
DE (1) DE612713C (en)
FR (1) FR782686A (en)
GB (1) GB429491A (en)
NL (1) NL39078C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840664A (en) * 1957-06-19 1958-06-24 Westinghouse Electric Corp Ambient-compensated thermal overload relays
CN104291232B (en) * 2014-10-11 2016-05-11 杭州赛奇机械股份有限公司 Automatic deploying and retracting rope device
KR101699612B1 (en) 2015-05-28 2017-01-24 주식회사 동부하이텍 High voltage semiconductor device and method of manufacturing the same
US10027098B1 (en) 2017-05-02 2018-07-17 Charles Ciappa Safety cover for use with and electrical cable snaking device

Also Published As

Publication number Publication date
US2014607A (en) 1935-09-17
CH171497A (en) 1934-08-31
FR782686A (en) 1935-06-08
DE612713C (en) 1935-05-03
NL39078C (en) 1936-09-15

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