GB489949A - Improvements in and relating to collapsable grilles or guards for shop, bank, and like counters - Google Patents
Improvements in and relating to collapsable grilles or guards for shop, bank, and like countersInfo
- Publication number
- GB489949A GB489949A GB340537A GB340537A GB489949A GB 489949 A GB489949 A GB 489949A GB 340537 A GB340537 A GB 340537A GB 340537 A GB340537 A GB 340537A GB 489949 A GB489949 A GB 489949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pickets
- collapsable
- picket
- members
- pulleys
- 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
- E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
- E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
- E06B9/0615—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the closing elements
- E06B9/063—Bars or rods perpendicular to the closing direction
-
- 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
- E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
- E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
- E06B9/0646—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position
- E06B9/0653—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position stored side by side in the closing plane
- E06B9/0661—Lazy tongue, pantograph or scissor-like systems in the plane of the opening
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
489,949. Collapsable guards. MORLEY, R. E. Feb. 5, 1937, No. 3405. [Class 45] A collapsable guard or grille comprises a folding lattice and picket structure with horizontal pickets a and balancing members such as spring drums c with cables f for supporting the weight of the moving parts. The lattice members are arranged to cause simultaneous movement of all the pickets. The cables pass between the channel members constituting the pickets. The ends of the pickets are guided in channel members e at each side. The separate spring counterbalance units may be replaced by a single shaft carrying pulleys, so that the lowermost picket would be constrained to maintain a horizontal position, or the cords might be taken over pulleys to wind on a common drum. Some of the intermediate pickets may be supported by the counter-balancing members actuated at proportional rates of movement. In the form shown in Fig. 6, a weight i is carried by a cord j on a drum k on a shaft l with dual stepped pulleys m taking cords /, f<1>. The lower picket may be secured in the upper or lower position by bolts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB340537A GB489949A (en) | 1937-02-05 | 1937-02-05 | Improvements in and relating to collapsable grilles or guards for shop, bank, and like counters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB340537A GB489949A (en) | 1937-02-05 | 1937-02-05 | Improvements in and relating to collapsable grilles or guards for shop, bank, and like counters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB489949A true GB489949A (en) | 1938-08-05 |
Family
ID=9757713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB340537A Expired GB489949A (en) | 1937-02-05 | 1937-02-05 | Improvements in and relating to collapsable grilles or guards for shop, bank, and like counters |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB489949A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2224073A (en) * | 1985-11-12 | 1990-04-25 | Valentine Patrick Galvin | Collapsible security grille |
-
1937
- 1937-02-05 GB GB340537A patent/GB489949A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2224073A (en) * | 1985-11-12 | 1990-04-25 | Valentine Patrick Galvin | Collapsible security grille |
GB2224073B (en) * | 1985-11-12 | 1990-08-15 | Valentine Patrick Galvin | Improvements in security grilles |
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