GB211555A - An improved electric lamp signalling device - Google Patents
An improved electric lamp signalling deviceInfo
- Publication number
- GB211555A GB211555A GB3155922A GB3155922A GB211555A GB 211555 A GB211555 A GB 211555A GB 3155922 A GB3155922 A GB 3155922A GB 3155922 A GB3155922 A GB 3155922A GB 211555 A GB211555 A GB 211555A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switches
- lamp
- lamps
- employed
- electric lamp
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
211,555. Shuttleworth, W. E. Nov. 18, 1922. Lamp signals.-An electric signalling lamp comprises a casing A having a plurality of apertures a<1> - - a' with an electric lamp behind each, switches D<3> - - D<5> for the lamps, the button of each switch projecting through the casing, and leads from a source of current to insulated terminals J, J<1>, one of which is connected to each of the switches and the other to one side of the lamps. In a modification, the terminals J, J<1> are dispensed with, and the supply leads taken directly one to the switches and the other to the lamps. A multiple-way switch may be employed in place of a number of switches. The apertures are preferably fitted with different coloured glasses; or coloured lamp bulbs may be employed to give different coloured lights. According to the Provisional Specification, a single lamp and aperture may be employed; and the switches may be mounted on the supply cable or flex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3155922A GB211555A (en) | 1922-11-18 | 1922-11-18 | An improved electric lamp signalling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3155922A GB211555A (en) | 1922-11-18 | 1922-11-18 | An improved electric lamp signalling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB211555A true GB211555A (en) | 1924-02-18 |
Family
ID=10324927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3155922A Expired GB211555A (en) | 1922-11-18 | 1922-11-18 | An improved electric lamp signalling device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB211555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013619A (en) * | 2021-03-04 | 2021-06-22 | 杭州永谐科技有限公司上海分公司 | Structural design of low-cost open waveguide antenna |
-
1922
- 1922-11-18 GB GB3155922A patent/GB211555A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013619A (en) * | 2021-03-04 | 2021-06-22 | 杭州永谐科技有限公司上海分公司 | Structural design of low-cost open waveguide antenna |
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