GB485564A - Improvements relating to magnetically-operated electric switches - Google Patents
Improvements relating to magnetically-operated electric switchesInfo
- Publication number
- GB485564A GB485564A GB31352/36A GB3135236A GB485564A GB 485564 A GB485564 A GB 485564A GB 31352/36 A GB31352/36 A GB 31352/36A GB 3135236 A GB3135236 A GB 3135236A GB 485564 A GB485564 A GB 485564A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnet
- armature
- movement
- vessel
- casing
- 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
- H01H29/00—Switches having at least one liquid contact
- H01H29/18—Switches having at least one liquid contact with level of surface of contact liquid displaced by non-electrical contact-making plunger
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
485,564. Magnetic switches ; mercury switches. CIANCHI, A. Nov. 16, 1936, No. 31352. [Class 38 (v)] A sealed vessel 1, containing mercury or other contacts which are brought into or out of engagement by the movement of an armature 8 within the vessel, is mounted within a protective casing 12 and the movement of the armature is brought about by the movement by hand of an external magnet 13 which is slidabIe on or pivoted with respect to the casing 12. In the form shown in Fig. 1, the magnet 3 is U-shaped and is provided with inwardly-projecting polepieces which slide in vertical grooves in the casing 12. When the magnet is moved down into the position shown, the armature 8 is pulled down, and mercury flows through an opening 7 so as to complete a circuit between electrodes 5 and 6. Fig. 8 shows a modification in which the vessel 1 is mounted on a base 11 and the magnet 13 is carried by a " dolly '' 20. The Provisional Specification refers to Specifications 453,229, 481,289, 482,947, and 484,987.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB202637X | 1936-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB485564A true GB485564A (en) | 1938-05-16 |
Family
ID=10143103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31352/36A Expired GB485564A (en) | 1936-11-16 | 1936-11-16 | Improvements relating to magnetically-operated electric switches |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH202637A (en) |
| FR (1) | FR829375A (en) |
| GB (1) | GB485564A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2727959A (en) * | 1952-12-26 | 1955-12-20 | Pure Oil Co | Sparkless electric "toggle" switch |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2790392A (en) * | 1952-06-16 | 1957-04-30 | Acf Ind Inc | Electric fuel pump |
-
1936
- 1936-11-16 GB GB31352/36A patent/GB485564A/en not_active Expired
-
1937
- 1937-11-16 FR FR829375D patent/FR829375A/en not_active Expired
- 1937-11-16 CH CH202637D patent/CH202637A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2727959A (en) * | 1952-12-26 | 1955-12-20 | Pure Oil Co | Sparkless electric "toggle" switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CH202637A (en) | 1939-01-31 |
| FR829375A (en) | 1938-06-24 |
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