GB524768A - Improvements in man hole and like covers for air raid shelters and like purposes - Google Patents
Improvements in man hole and like covers for air raid shelters and like purposesInfo
- Publication number
- GB524768A GB524768A GB398539A GB398539A GB524768A GB 524768 A GB524768 A GB 524768A GB 398539 A GB398539 A GB 398539A GB 398539 A GB398539 A GB 398539A GB 524768 A GB524768 A GB 524768A
- Authority
- GB
- United Kingdom
- Prior art keywords
- woodrow
- plate
- cover
- collar
- frame
- 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
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/12—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against air pressure, explosion, or gas
- E06B5/14—Gasproof doors or similar closures; Adaptation of fixed constructions therefor
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Air-Flow Control Members (AREA)
Abstract
524,768. Manhole &c. covers. WOODROW, W. J., WOODROW, J. W., WOODROW, A. C., and WOODROW, W. J., (trading as WOODROW & CO., A. C.). Feb. 7, 1939, No. 3985. [Class 107] A closure for the entrance of an air-raid shelter comprises a hinged cover-plate 5 with flanged edges 6 to engage a suitably-packed channel formed by flanges 2, 3 on a frame 1 and means, operable from inside or outside, for locking the plate in the closed position. As shown, the locking-means comprises a collar 13 fixed on a spindle 14 which can be turned, from inside by a handle 17, and from outside by means of a key engaging the apertured head 10 of the collar. The latter is formed with a wedging-recess 11 to receive a projection 7 on the cover. To assist opening, and to damp the closing, of the cover, a spring 27 may be fitted between the flanged end 30 of a bracket 31 on the frame and a collar on a rod 28 pivoted on the cover. Ventilating-apertures 33 in the latter are closed by a plate 34, fitted with packing-strips 35. The plate 34 is carried by pins 37 on a hinged flap 36 secured by a bolt and nut 41, 43. The frame is shown provided with bolt-holes for the attachment of a protective canopy of the kind described in Specification 526,586.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB398539A GB524768A (en) | 1939-02-07 | 1939-02-07 | Improvements in man hole and like covers for air raid shelters and like purposes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB398539A GB524768A (en) | 1939-02-07 | 1939-02-07 | Improvements in man hole and like covers for air raid shelters and like purposes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB524768A true GB524768A (en) | 1940-08-14 |
Family
ID=9768619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB398539A Expired GB524768A (en) | 1939-02-07 | 1939-02-07 | Improvements in man hole and like covers for air raid shelters and like purposes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB524768A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2118598A (en) * | 1982-03-09 | 1983-11-02 | Brickhouse Dudley Mfg | Roadside gully boxes |
GB2163467A (en) * | 1984-07-13 | 1986-02-26 | Turner Bros | Manhole cover with torsion spring hinge to facilitate opening |
-
1939
- 1939-02-07 GB GB398539A patent/GB524768A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2118598A (en) * | 1982-03-09 | 1983-11-02 | Brickhouse Dudley Mfg | Roadside gully boxes |
GB2163467A (en) * | 1984-07-13 | 1986-02-26 | Turner Bros | Manhole cover with torsion spring hinge to facilitate opening |
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