GB404218A - Electric signalling lamp - Google Patents
Electric signalling lampInfo
- Publication number
- GB404218A GB404218A GB19012/33A GB1901233A GB404218A GB 404218 A GB404218 A GB 404218A GB 19012/33 A GB19012/33 A GB 19012/33A GB 1901233 A GB1901233 A GB 1901233A GB 404218 A GB404218 A GB 404218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- holder
- signalling
- lens
- july
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L2/00—Systems of electric lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Abstract
404,218. Signalling - lamps. GRUNWALD, P., 15, Wusterhausenerstrasse, Berlin. July 4, 1933, No. 19012. Convention date, July 11, 1932. [Class 75 (iv).] Lantern screens.-For signalling with differently coloured lights, an electric signalling lamp is provided with differently coloured films which are mounted in the lensholder in such a manner as to be movable along a path substantially at right-angles to the axis of the lamp. Red and green or other coloured flexible films 71, 7<11> of gelatine, celluloid, a cellulose derivative, or the like, pivoted at one end at 8, inside the cupshaped lens-holder 3, and curved to its shape are swung into and out of the path of the light emitted by the lamp bulb mounted in the upper end 1<1> of the casing, by means of knobs 6<1>, 6<11> or the like protruding through a curved transverse slot in the lens-holder. In the form illustrated the lamp is of torch form and a bull's eye lens is carried by the holder 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE404218X | 1932-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB404218A true GB404218A (en) | 1934-01-11 |
Family
ID=6421655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19012/33A Expired GB404218A (en) | 1932-07-11 | 1933-07-04 | Electric signalling lamp |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB404218A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751490A (en) * | 1955-07-11 | 1956-06-19 | David E Emerson | Flashlight |
-
1933
- 1933-07-04 GB GB19012/33A patent/GB404218A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2751490A (en) * | 1955-07-11 | 1956-06-19 | David E Emerson | Flashlight |
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