GB329036A - Improvements in fuses particularly for telephone systems - Google Patents

Improvements in fuses particularly for telephone systems

Info

Publication number
GB329036A
GB329036A GB518329A GB518329A GB329036A GB 329036 A GB329036 A GB 329036A GB 518329 A GB518329 A GB 518329A GB 518329 A GB518329 A GB 518329A GB 329036 A GB329036 A GB 329036A
Authority
GB
United Kingdom
Prior art keywords
spring
fuse
plunger
wire
telephone systems
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
GB518329A
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.)
SYDNEY VICTOR COLLARD SCRUBY
Original Assignee
SYDNEY VICTOR COLLARD SCRUBY
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 SYDNEY VICTOR COLLARD SCRUBY filed Critical SYDNEY VICTOR COLLARD SCRUBY
Priority to GB518329A priority Critical patent/GB329036A/en
Publication of GB329036A publication Critical patent/GB329036A/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
    • H01H85/303—Movable indicating elements

Landscapes

  • Fuses (AREA)

Abstract

329,036. Standard Telephones &. Cables, Ltd., (Scruby, S. V. C., Montel, A., and Vial, J.). Feb. 15, 1929. Fusible cut-outs.-A fuse comprising a wire 6 attached to a plunger 8 which is moved downwards by a spring 12 when the wire breaks, is provided with an indicating device 11 surrounding the wire. The indicator consists of a glass tube which is kept in contact with the plunger by the spring and is coloured over its top half which is visible through inspection holes 3 when the plunger falls. The fuse is intended for use with telephone systems and is mounted in a socket 24 on an arm 21 which is carried on a frame which also supports a heat coil 15 and lightning arrester 16. The plunger 8 of the fuse rests against a spring 25 which when the fuse breaks is depressed and first makes contact with a spring 26 to earth the subscriber's line and then causes springs 26, 30 to make contact and complete an alarm circuit.
GB518329A 1929-02-15 1929-02-15 Improvements in fuses particularly for telephone systems Expired GB329036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB518329A GB329036A (en) 1929-02-15 1929-02-15 Improvements in fuses particularly for telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB518329A GB329036A (en) 1929-02-15 1929-02-15 Improvements in fuses particularly for telephone systems

Publications (1)

Publication Number Publication Date
GB329036A true GB329036A (en) 1930-05-15

Family

ID=9791256

Family Applications (1)

Application Number Title Priority Date Filing Date
GB518329A Expired GB329036A (en) 1929-02-15 1929-02-15 Improvements in fuses particularly for telephone systems

Country Status (1)

Country Link
GB (1) GB329036A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855483A (en) * 1954-09-14 1958-10-07 Acf Ind Inc Indicating fuse holder
CN114122923A (en) * 2021-11-16 2022-03-01 珠海城市职业技术学院 Electric power energy storage control device with ground protection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855483A (en) * 1954-09-14 1958-10-07 Acf Ind Inc Indicating fuse holder
CN114122923A (en) * 2021-11-16 2022-03-01 珠海城市职业技术学院 Electric power energy storage control device with ground protection

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