GB414155A - Improvements in covers and frames for manholes and other openings in roadways and pavements - Google Patents
Improvements in covers and frames for manholes and other openings in roadways and pavementsInfo
- Publication number
- GB414155A GB414155A GB423833A GB423833A GB414155A GB 414155 A GB414155 A GB 414155A GB 423833 A GB423833 A GB 423833A GB 423833 A GB423833 A GB 423833A GB 414155 A GB414155 A GB 414155A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cover
- frame
- lip
- walls
- inwardly
- 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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
414,155. Manhole frames and covers. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and BREEZE, H. W., Kingswood, Upper Wrotham Road, Gravesend. Feb. 11, 1933, No. 4238. [Class 107.] A rectangular manhole cover 4, resting on an inwardly-projecting flange of the frame 1, has shaped peripheral walls comprising upper and lower substantially vertical portions and an intermediate portion lying at a large angle to the vertical. A small clearance is provided between the cover and the correspondinglyshaped wall of the frame, so that the cover may be removed by sliding it laterally when one edge thereof is slightly raised. In the construction shown, the cover rests on an upstanding lip 3 of an inwardly-projecting portion of the frame. Corner strips 14 may be fitted to the lip to prevent the cover from rocking. The outer edge of the lip or, as shown, the adjacent portion 20 of the cover, may be chamfered to facilitate the lateral removal of the cover. Locating lugs 24 and recesses 23 are formed on the frame and cover respectively, the walls 26, 25, thereof being arranged at different inclinations to provide a wedge-shaped opening for the reception of the end of a pinch-bar. The cover consists of a skeleton framework formed by walls 15 and cross-bars 16 with a concrete or other filling. Key-hole slots 21 opening into pockets 22 are provided at each end of the cover to accommodate the usual lifting keys.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB423833A GB414155A (en) | 1933-02-11 | 1933-02-11 | Improvements in covers and frames for manholes and other openings in roadways and pavements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB423833A GB414155A (en) | 1933-02-11 | 1933-02-11 | Improvements in covers and frames for manholes and other openings in roadways and pavements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB414155A true GB414155A (en) | 1934-08-02 |
Family
ID=9773328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB423833A Expired GB414155A (en) | 1933-02-11 | 1933-02-11 | Improvements in covers and frames for manholes and other openings in roadways and pavements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB414155A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2531152A1 (en) * | 1982-07-31 | 1984-02-03 | Brickhouse Dudley Mfg | ASSEMBLY COMPRISING A FRAME AND A COVER, AND METHOD FOR REMOVING THE COVER FROM THE FRAME IN AN ASSEMBLY OF THIS TYPE |
GB2129469A (en) * | 1982-01-20 | 1984-05-16 | Selflevel Covers | Manhole cover frames |
EP0390767A2 (en) * | 1989-03-31 | 1990-10-03 | Ludo Debergh | Airtight manhole closure device |
-
1933
- 1933-02-11 GB GB423833A patent/GB414155A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2129469A (en) * | 1982-01-20 | 1984-05-16 | Selflevel Covers | Manhole cover frames |
FR2531152A1 (en) * | 1982-07-31 | 1984-02-03 | Brickhouse Dudley Mfg | ASSEMBLY COMPRISING A FRAME AND A COVER, AND METHOD FOR REMOVING THE COVER FROM THE FRAME IN AN ASSEMBLY OF THIS TYPE |
EP0390767A2 (en) * | 1989-03-31 | 1990-10-03 | Ludo Debergh | Airtight manhole closure device |
EP0390767A3 (en) * | 1989-03-31 | 1990-12-12 | Ludo Debergh | Airtight manhole closure device |
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