GB668037A - Improvements relating to electric switches of the push button type - Google Patents
Improvements relating to electric switches of the push button typeInfo
- Publication number
- GB668037A GB668037A GB1281550A GB1281550A GB668037A GB 668037 A GB668037 A GB 668037A GB 1281550 A GB1281550 A GB 1281550A GB 1281550 A GB1281550 A GB 1281550A GB 668037 A GB668037 A GB 668037A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- spikes
- moulding
- push button
- recess
- 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
- 238000000465 moulding Methods 0.000 abstract 3
- 239000003245 coal Substances 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
668,037. Press-button retractive switches. SIEMENS-SCHUCKERT (GREAT BRITAIN) Ltd., and CROCKER, W. G. May 22, 1950. No. 12815/50. Class 38 (v). [Also in Group XXXVI] The terminals of a switch, especially for signalling systems used, e.g. in coal mines, comprise spikes 13, on to which a double, or two single, core cables are impaled, the inner, rounded, ends of the spikes forming contacts adapted to be bridged by a disc contact 20 carried by a resilient diaphragm 19. The spikes 13, are embedded in a moulding 8 secured in a casing 1 by a ring 9 screwed into the casing, the edge of the diaphragm 19 being secured between the moulding 8 and the casing so as to render the latter dustproof. The casing has two opposing slots 2 in line with a recess 10 in the moulding, into which recess the spikes project so as to impale the cable when laid in position therein, the cable being pressed on to the spikes by a plug 4 which screws into the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1281550A GB668037A (en) | 1950-05-22 | 1950-05-22 | Improvements relating to electric switches of the push button type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1281550A GB668037A (en) | 1950-05-22 | 1950-05-22 | Improvements relating to electric switches of the push button type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB668037A true GB668037A (en) | 1952-03-12 |
Family
ID=10011654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1281550A Expired GB668037A (en) | 1950-05-22 | 1950-05-22 | Improvements relating to electric switches of the push button type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB668037A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124040A (en) * | 1981-05-01 | 1984-02-08 | Alwar Co Ltd | Further improvements in electric fittings |
| GB2308020A (en) * | 1995-12-08 | 1997-06-11 | Egerton A C Ltd | connector unit with IDC contact |
| US6015312A (en) * | 1995-12-08 | 2000-01-18 | A.C. Egerton Limited | Connector unit |
| CN113482722A (en) * | 2021-07-14 | 2021-10-08 | 李芹 | Non-coal mine safety production risk prediction early warning platform |
-
1950
- 1950-05-22 GB GB1281550A patent/GB668037A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124040A (en) * | 1981-05-01 | 1984-02-08 | Alwar Co Ltd | Further improvements in electric fittings |
| GB2308020A (en) * | 1995-12-08 | 1997-06-11 | Egerton A C Ltd | connector unit with IDC contact |
| US6015312A (en) * | 1995-12-08 | 2000-01-18 | A.C. Egerton Limited | Connector unit |
| GB2308020B (en) * | 1995-12-08 | 2000-08-23 | Egerton A C Ltd | Connector unit |
| CN113482722A (en) * | 2021-07-14 | 2021-10-08 | 李芹 | Non-coal mine safety production risk prediction early warning platform |
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