GB515747A - Improvements in or relating to electrical fuses - Google Patents
Improvements in or relating to electrical fusesInfo
- Publication number
- GB515747A GB515747A GB16953/38A GB1695338A GB515747A GB 515747 A GB515747 A GB 515747A GB 16953/38 A GB16953/38 A GB 16953/38A GB 1695338 A GB1695338 A GB 1695338A GB 515747 A GB515747 A GB 515747A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuse
- melting point
- june
- spring
- wedge
- 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
Abstract
515,747. Fusible cut-outs. FIERI, C. June 7, 1938, No. 16953. Convention date, June 4, 1937. [Class 38 (i)] The main fusible element 3, Fig. 1, of a cut-out is ruptured before reaching its melting point by a spring-pressed wedge 7 that insulates the separated ends of the element 3. Arc extinction is assisted by the provision of a small fuse 4 having a high melting point and enclosed in arc extinguishing material. For heavier currents the first rupture may be effected by the operation of a link 15, Fig. 5, attached by solder of low melting point to bridge the conductors 14 and acted on by a spring-pressed plunger 7. A second fuse 3 is ruptured by a wedge 7a and a final break effected by a small fuse 4. The fusible element 3 may be housed in a support 6 having a slot the dimensions of which limit the size of the fuse that can be inserted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT515747X | 1937-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515747A true GB515747A (en) | 1939-12-13 |
Family
ID=11275353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16953/38A Expired GB515747A (en) | 1937-06-04 | 1938-06-07 | Improvements in or relating to electrical fuses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB515747A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649942A (en) * | 1970-08-10 | 1972-03-14 | Micro Devices Corp | Thermal limiter for one or more electrical circuits and method of making the same |
| US3839692A (en) * | 1970-08-10 | 1974-10-01 | Micro Devices Corp | Thermal limiter construction for one or more electrical circuits and method of making the same |
| USRE29430E (en) * | 1970-08-10 | 1977-10-04 | Emerson Electric Co. | Thermal limiter for one or more electrical circuits and method of making the same |
| US10164300B2 (en) | 2015-12-16 | 2018-12-25 | GM Global Technology Operations LLC | Sensing feature on fuse element for detection prior to fuse open |
-
1938
- 1938-06-07 GB GB16953/38A patent/GB515747A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649942A (en) * | 1970-08-10 | 1972-03-14 | Micro Devices Corp | Thermal limiter for one or more electrical circuits and method of making the same |
| US3839692A (en) * | 1970-08-10 | 1974-10-01 | Micro Devices Corp | Thermal limiter construction for one or more electrical circuits and method of making the same |
| USRE29430E (en) * | 1970-08-10 | 1977-10-04 | Emerson Electric Co. | Thermal limiter for one or more electrical circuits and method of making the same |
| US10164300B2 (en) | 2015-12-16 | 2018-12-25 | GM Global Technology Operations LLC | Sensing feature on fuse element for detection prior to fuse open |
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