GB673002A - Improvements in and relating to electrical fuses of the bi-metallic type - Google Patents
Improvements in and relating to electrical fuses of the bi-metallic typeInfo
- Publication number
- GB673002A GB673002A GB2550949A GB2550949A GB673002A GB 673002 A GB673002 A GB 673002A GB 2550949 A GB2550949 A GB 2550949A GB 2550949 A GB2550949 A GB 2550949A GB 673002 A GB673002 A GB 673002A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- metal
- holes
- class
- flanges
- 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
- H01H85/06—Fusible members characterised by the fusible material
Landscapes
- Fuses (AREA)
Abstract
673,002. Cut-outs. PARMITER HOPE & SUGDEN, Ltd. Sept. 22, 1950 [Oct. 4, 1949], No. 25509/49. Class 38 (i). A fusible element comprises two parallel strips 16 of high fusing metal having concentric holes 12 in which low melting metal 18 in molten form is deposited in situ so as to flow between the strips. Preferably the strips are formed of one piece 10 bent over on itself, as in Specification 669,378, and are notched at 14 which notches serve also to locate the strips in a composite mould 24, 26 through which the metal 18 is poured into the holes 12. One hole is larger than the other and is provided with a flange in order that the metal 18 may be securely locked on to the strips. Alternative constructions include strips having holes without flanges, or with the flanges oppositely bent, or flared in the same direction, Fig. 7 (not shown). In a further modification, Fig. 8, notches 22 are made at the metal 18, thereby rendering the strips discontinuous. Specifications 14803/11, 217,626, 242,338, [all in Class 38 (i)], 411,861 and 493,100 also are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2550949A GB673002A (en) | 1949-10-04 | 1949-10-04 | Improvements in and relating to electrical fuses of the bi-metallic type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2550949A GB673002A (en) | 1949-10-04 | 1949-10-04 | Improvements in and relating to electrical fuses of the bi-metallic type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673002A true GB673002A (en) | 1952-05-28 |
Family
ID=10228841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2550949A Expired GB673002A (en) | 1949-10-04 | 1949-10-04 | Improvements in and relating to electrical fuses of the bi-metallic type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB673002A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2816989A (en) * | 1954-05-05 | 1957-12-17 | Parmiter Hope & Sugden Ltd | Electric fuses |
| US2827532A (en) * | 1955-10-28 | 1958-03-18 | Frederick J Kozacka | Current-limiting low impedance fuses for small current intensities |
| US2858396A (en) * | 1955-03-08 | 1958-10-28 | Parmiter Hope & Sugden Ltd | Electric fuses |
-
1949
- 1949-10-04 GB GB2550949A patent/GB673002A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2816989A (en) * | 1954-05-05 | 1957-12-17 | Parmiter Hope & Sugden Ltd | Electric fuses |
| US2858396A (en) * | 1955-03-08 | 1958-10-28 | Parmiter Hope & Sugden Ltd | Electric fuses |
| US2827532A (en) * | 1955-10-28 | 1958-03-18 | Frederick J Kozacka | Current-limiting low impedance fuses for small current intensities |
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