GB335311A - Improved means for the protection of windows, skylights, doors, and the like - Google Patents
Improved means for the protection of windows, skylights, doors, and the likeInfo
- Publication number
- GB335311A GB335311A GB2237629A GB2237629A GB335311A GB 335311 A GB335311 A GB 335311A GB 2237629 A GB2237629 A GB 2237629A GB 2237629 A GB2237629 A GB 2237629A GB 335311 A GB335311 A GB 335311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- chains
- guard
- grille
- drum
- 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
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
- E06B9/18—Roll-type grilles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Special Wing (AREA)
Abstract
335,311. Tibbles, H. J., and Rely-a- Bell Burglar & Fire Alarm Co., Ltd. July 20, 1929. Slat and lath fabrics; collapsable gates.-A rollup screen or the like of the kind comprising a number of interconnected parallel steel bars, is extended to its operative position by chains or cords connected to the grille and passing over pulleys on a shaft arranged parallel to the drum on which the grille is wound. A guard comprises a number of rods 5, Fig. 1, connected together by chains 6 and is wound on to a drum 7 housed in a casing 9. The end bar 8 of the guard is connected by cords 12 to pulleys 13 on a shaft 14. The ends of the rods 5 pass through slots 3, Fig. 3, of guides 1, 2, and are provided with balls 20 to ensure easy running. The rods 5 may have a slight longitudinal freedom in the chains 6 by forming the rods in sections and by reducing the ends of the sections to form grooves 24. The rods may be made tubular and may contain wires the breaking of which would open an electric circuit to give an alarm; or the rods themselves may engage contacts to close the said circuit. The roller 7 may be provided with a torsion spring so that the guard may be rolled automatically thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2237629A GB335311A (en) | 1929-07-30 | 1929-07-30 | Improved means for the protection of windows, skylights, doors, and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2237629A GB335311A (en) | 1929-07-30 | 1929-07-30 | Improved means for the protection of windows, skylights, doors, and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB335311A true GB335311A (en) | 1930-09-25 |
Family
ID=10178370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2237629A Expired GB335311A (en) | 1929-07-30 | 1929-07-30 | Improved means for the protection of windows, skylights, doors, and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB335311A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3225099A1 (en) * | 1982-03-17 | 1983-09-22 | Dieter 7317 Wendlingen Knauer | Shutting-off device |
| GB2249809A (en) * | 1990-11-15 | 1992-05-20 | Hunter Douglas Ind Bv | A retractable, flexible closure for a door or window opening |
-
1929
- 1929-07-30 GB GB2237629A patent/GB335311A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3225099A1 (en) * | 1982-03-17 | 1983-09-22 | Dieter 7317 Wendlingen Knauer | Shutting-off device |
| GB2249809A (en) * | 1990-11-15 | 1992-05-20 | Hunter Douglas Ind Bv | A retractable, flexible closure for a door or window opening |
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