GB381300A - Improvements relating to manholes and the like - Google Patents
Improvements relating to manholes and the likeInfo
- Publication number
- GB381300A GB381300A GB2491431A GB2491431A GB381300A GB 381300 A GB381300 A GB 381300A GB 2491431 A GB2491431 A GB 2491431A GB 2491431 A GB2491431 A GB 2491431A GB 381300 A GB381300 A GB 381300A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cover
- frame
- rib
- ribs
- lugs
- 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)
Abstract
381,300. Manhole frames and covers. BOSTEL, E. and BOSTELS, Ltd., 71, Ebury Street, Buckingham Palace Road, London. Sept. 4, 1931, No. 24914. [Class 107.] The frame of a manhole cover is provided with one or more lugs 8 which, as shown in Figs. 1 and 2, project outwardly and are each bound on four sides by ribs 4a, 4b upstanding from the base of the frame so as to form a recess 9 which is partly covered by a lug 7 projecting outwardly from the cover and is adapted to receive the end of a coverlifting tool. The ribs 4a, 4b form part of a continuous rib 4 extending around the frame, one rib 4b being cut away so that the lug 7 on the cover may rest upon the upper part of such rib. The cover is also adapted to be supported on an inner rib 2 on the frame. A rib 10 on the underside of the cover is adapted to fit in the groove 5 between the ribs 2, 4 on the cover, and any suitable sealing composition may be provided in the groove 5 and also in the recesses 9. In a modification the lugs 12, Fig. 4, on the frame are inwardly directed and the cover is provided with an inwardlyextending recess 14 which, when the cover is in position, is adapted to leave an opening for the reception of the tool. The cover is secured in position by bolts or turnbuckles fitted to the parts which overhang the recessed lugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2491431A GB381300A (en) | 1931-09-04 | 1931-09-04 | Improvements relating to manholes and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2491431A GB381300A (en) | 1931-09-04 | 1931-09-04 | Improvements relating to manholes and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB381300A true GB381300A (en) | 1932-10-06 |
Family
ID=10219254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2491431A Expired GB381300A (en) | 1931-09-04 | 1931-09-04 | Improvements relating to manholes and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB381300A (en) |
-
1931
- 1931-09-04 GB GB2491431A patent/GB381300A/en not_active Expired
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