GB553761A - Improvements in electric fuses - Google Patents
Improvements in electric fusesInfo
- Publication number
- GB553761A GB553761A GB204842A GB204842A GB553761A GB 553761 A GB553761 A GB 553761A GB 204842 A GB204842 A GB 204842A GB 204842 A GB204842 A GB 204842A GB 553761 A GB553761 A GB 553761A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wire
- mass
- electric
- fuse
- attached
- 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
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
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
- H01H85/08—Fusible members characterised by the shape or form of the fusible member
Landscapes
- Fuses (AREA)
Abstract
553,761. Electric cut-outs. GENERAL ELECTRIC CO., Ltd., ENGLISH ELECTRIC CO., Ltd., and GIBSON, J. W. Feb. 16, 1942, No. 2048. [Class 38 (i)] An element of an electric fuse consists of a substantially uniform wire to which is attached, in close contact with part but not the whole of the wire, at least one metal body having a thermal capacity much greater than that of the part of the wire to which it is attached, and having a melting point at least as high as that of the wire. The element 1, Fig. 3, is a silver wire and the metal body 3 consists of a mass of copper. Additional copper masses 3<SP>1</SP>, 3<SP>11</SP> may be attached at each end of the wire in addition to, or in place of, the mass 3, there being in each case a length of wire exposed between the masses. The mass 3 may be made in two halves which are welded or hard-soldered around the wire, or the wire may be inserted in a slot cut in the mass and the slot then closed with hard solder or by squeezing the mass. A fuse so constructed may be included in part of a motor circuit in which an overload trip is provided to deal with normal overloads, the fuse being included in a part of the circuit through which an overload current will pass. Specification 462,577 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB204842A GB553761A (en) | 1942-02-16 | 1942-02-16 | Improvements in electric fuses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB204842A GB553761A (en) | 1942-02-16 | 1942-02-16 | Improvements in electric fuses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB553761A true GB553761A (en) | 1943-06-03 |
Family
ID=9732689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB204842A Expired GB553761A (en) | 1942-02-16 | 1942-02-16 | Improvements in electric fuses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB553761A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042777A (en) * | 1958-08-11 | 1962-07-03 | Mc Graw Edison Co | Protectors for electric circuits |
| US3089012A (en) * | 1960-03-10 | 1963-05-07 | Cable Electric Products Inc | Time lag fuses |
| US3333076A (en) * | 1963-12-05 | 1967-07-25 | English Electric Co Ltd | Cartridge fuse and fuse length with heat transfer means |
-
1942
- 1942-02-16 GB GB204842A patent/GB553761A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3042777A (en) * | 1958-08-11 | 1962-07-03 | Mc Graw Edison Co | Protectors for electric circuits |
| US3089012A (en) * | 1960-03-10 | 1963-05-07 | Cable Electric Products Inc | Time lag fuses |
| US3333076A (en) * | 1963-12-05 | 1967-07-25 | English Electric Co Ltd | Cartridge fuse and fuse length with heat transfer means |
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