GB390806A - Improvements in manhole covers & frames - Google Patents
Improvements in manhole covers & framesInfo
- Publication number
- GB390806A GB390806A GB25145/31A GB2514531A GB390806A GB 390806 A GB390806 A GB 390806A GB 25145/31 A GB25145/31 A GB 25145/31A GB 2514531 A GB2514531 A GB 2514531A GB 390806 A GB390806 A GB 390806A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- lugs
- cover
- slots
- apertures
- 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
- E02D29/1463—Hinged connection of cover to frame
-
- 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
-
- 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
- E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic
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
390,806. Hinges. HARTLEY, C. J., Cae Brest, The Avenue, Harpfields, Stokeon-Trent. Sept. 8, 1931, No. 25145. [Class 65 (ii).] A triangular manhole cover is hinged to its frame by means of cylindrical lugs B, Figs. 2 and 3, bearing on corresponding seatings D in the frame ; detachment is prevented by a bolt A passing through large holes in the lugs B and entering apertures K in the frame, being held by nuts L. In a modification, the apertures K are open-ended slots, to allow detachment of the cover with the rod A. In another form, Fig. 6, the cover has two lugs N which engage in curved slots Q in the frame ; the cover is detachable when closed, and the lugs prevent dirt from entering the slots.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25145/31A GB390806A (en) | 1931-09-08 | 1931-09-08 | Improvements in manhole covers & frames |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25145/31A GB390806A (en) | 1931-09-08 | 1931-09-08 | Improvements in manhole covers & frames |
Publications (1)
Publication Number | Publication Date |
---|---|
GB390806A true GB390806A (en) | 1933-04-10 |
Family
ID=10222947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25145/31A Expired GB390806A (en) | 1931-09-08 | 1931-09-08 | Improvements in manhole covers & frames |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB390806A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203625A (en) * | 1987-04-11 | 1988-10-26 | William Mcburney | Removable cover for animal waste pit in animal house |
FR2683255A1 (en) * | 1991-10-31 | 1993-05-07 | Barat Sa | Device for assistance with opening and closing a hatch, particularly an access hatch (manhole) to civil engineering constructions (works) |
EP0808951B1 (en) * | 1996-05-24 | 2001-11-28 | Norinco | Hinged manhole cover on a frame |
-
1931
- 1931-09-08 GB GB25145/31A patent/GB390806A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203625A (en) * | 1987-04-11 | 1988-10-26 | William Mcburney | Removable cover for animal waste pit in animal house |
GB2203625B (en) * | 1987-04-11 | 1990-08-15 | William Mcburney | Floor unit for an animal house |
FR2683255A1 (en) * | 1991-10-31 | 1993-05-07 | Barat Sa | Device for assistance with opening and closing a hatch, particularly an access hatch (manhole) to civil engineering constructions (works) |
EP0808951B1 (en) * | 1996-05-24 | 2001-11-28 | Norinco | Hinged manhole cover on a frame |
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