GB614615A - Improvements in or relating to fuse elements - Google Patents
Improvements in or relating to fuse elementsInfo
- Publication number
- GB614615A GB614615A GB2205446A GB2205446A GB614615A GB 614615 A GB614615 A GB 614615A GB 2205446 A GB2205446 A GB 2205446A GB 2205446 A GB2205446 A GB 2205446A GB 614615 A GB614615 A GB 614615A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wires
- silver
- tin
- wire
- parallel
- 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
Landscapes
- Fuses (AREA)
Abstract
614,615. Cut-outs. GENERAL ELECTRIC CO., Ltd., ENGLISH ELECTRIC CO., Ltd., and GIBSON, J. W. July 24, 1946, No. 22054. [Class 38 (i)] A bimetal fuse element for a cartridge fuse filled with arc-quenching material comprises a first part of at least one wire, strip or the like 1, Fig. 1, of high melting point metal, e.g. silver, and a second part comprising at least two parallel-connected wires, strips or the like 2 of low melting point metal, e.g. tin,_ connected in series with the first part. The element may be made as described in Specification 341,281. In order to localise the point of fusion and reduce the resistance of the element, the first part may be modified as shown in Fig. 2 by providing a short silver wire 3 connected to the junction of the tin wires 2 and having two or more parallel-connected silver wires 4 connected to the other end thereof. According to a further modification, a greater time lag is obtained by connecting two short parallel connected silver wires to the first part which may be constructed as in Figs. 1 or 2, and joining a tin wire to each of the short silver wires. The latter wires may be enclosed in heat-insulating tubing and any one of the above elements may include a heat reservoir as described in Specification 553,761.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2205446A GB614615A (en) | 1946-07-24 | 1946-07-24 | Improvements in or relating to fuse elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2205446A GB614615A (en) | 1946-07-24 | 1946-07-24 | Improvements in or relating to fuse elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB614615A true GB614615A (en) | 1948-12-17 |
Family
ID=10173151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2205446A Expired GB614615A (en) | 1946-07-24 | 1946-07-24 | Improvements in or relating to fuse elements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB614615A (en) |
-
1946
- 1946-07-24 GB GB2205446A patent/GB614615A/en not_active Expired
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