GB482517A - Improvements in and relating to manhole and like covers - Google Patents

Improvements in and relating to manhole and like covers

Info

Publication number
GB482517A
GB482517A GB2655936A GB2655936A GB482517A GB 482517 A GB482517 A GB 482517A GB 2655936 A GB2655936 A GB 2655936A GB 2655936 A GB2655936 A GB 2655936A GB 482517 A GB482517 A GB 482517A
Authority
GB
United Kingdom
Prior art keywords
lid
frame
lugs
manhole
covers
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
Application number
GB2655936A
Original Assignee
Frederick Turnbull
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Frederick Turnbull filed Critical Frederick Turnbull
Priority to GB2655936A priority Critical patent/GB482517A/en
Publication of GB482517A publication Critical patent/GB482517A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14Covers for manholes or the like; Frames for covers

Abstract

482,517. Manhole covers. TURNBULL, F. Sept. 30. 1936, No. 26559. [Class 107] Relates to manhole and like covers of the kind in which the lid d and frame care provided with spaced helical bearing surfaces g, a, whereby the lid in effect is screwed into the frame. The lid and frame are provided also with inclined vertical surfaces, such as the surfaces k, h, which produce a horizontal wedging action upon the lid when the 'latter is turned. In the construction shown, the bearing surfaces g are formed on downwardly projecting lugs f of the lid, and the surfaces a are formed on lugs projecting inwardly from the cylindrical portion b of the frame. The wedging surfaces h, k, are provided respectively in recesses j in the cover and on lugs m on the frame. These lugs and recesses serve also to position the lid correctly when inserting it into the frame. The lid and frame shown have three bearing surfaces so that rocking of the lid under pressure is prevented.
GB2655936A 1936-09-30 1936-09-30 Improvements in and relating to manhole and like covers Expired GB482517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2655936A GB482517A (en) 1936-09-30 1936-09-30 Improvements in and relating to manhole and like covers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2655936A GB482517A (en) 1936-09-30 1936-09-30 Improvements in and relating to manhole and like covers

Publications (1)

Publication Number Publication Date
GB482517A true GB482517A (en) 1938-03-30

Family

ID=10245537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2655936A Expired GB482517A (en) 1936-09-30 1936-09-30 Improvements in and relating to manhole and like covers

Country Status (1)

Country Link
GB (1) GB482517A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015373A (en) * 1975-02-11 1977-04-05 Usines Et Acieries De Sambre Et Meuse Manhole assembly with removable cover, especially for a carriageway
FR2339023A2 (en) * 1976-01-20 1977-08-19 Sambre & Meuse Usines Round manhole cover which locks in frame - has rotary gravity drop with ramped radial lugs engaging frame notches and obtaining elastic interlock
FR2479873A1 (en) * 1980-04-04 1981-10-09 Pont A Mousson Circular manhole cover and frame - uses oblique tapered ribs at say third points on cover perimeter and entering frame grooves via screw action
FR2492432A1 (en) * 1980-10-17 1982-04-23 Pont A Mousson Carriageway manhole cover and frame - has friction held bearing and locking surfaces preventing cover rock under traffic loads
DE3141006A1 (en) * 1980-10-17 1982-05-19 Pont A Mousson ROAD GULLY TRAINING
FR2519046A1 (en) * 1981-12-29 1983-07-01 Pont A Mousson FLOOR LOOK
US4456397A (en) * 1981-09-23 1984-06-26 Centre De Recherches De Pont A Mousson Road inspection manhole
US4499695A (en) * 1981-03-18 1985-02-19 Pont-A-Mousson S.A. Manhole
FR2682407A1 (en) * 1991-10-15 1993-04-16 A3C Metal Look for push or similar.

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015373A (en) * 1975-02-11 1977-04-05 Usines Et Acieries De Sambre Et Meuse Manhole assembly with removable cover, especially for a carriageway
FR2339023A2 (en) * 1976-01-20 1977-08-19 Sambre & Meuse Usines Round manhole cover which locks in frame - has rotary gravity drop with ramped radial lugs engaging frame notches and obtaining elastic interlock
FR2479873A1 (en) * 1980-04-04 1981-10-09 Pont A Mousson Circular manhole cover and frame - uses oblique tapered ribs at say third points on cover perimeter and entering frame grooves via screw action
FR2492432A1 (en) * 1980-10-17 1982-04-23 Pont A Mousson Carriageway manhole cover and frame - has friction held bearing and locking surfaces preventing cover rock under traffic loads
DE3141006A1 (en) * 1980-10-17 1982-05-19 Pont A Mousson ROAD GULLY TRAINING
GB2147931A (en) * 1980-10-17 1985-05-22 Pont A Mousson Road inspection manhole
US4499695A (en) * 1981-03-18 1985-02-19 Pont-A-Mousson S.A. Manhole
US4456397A (en) * 1981-09-23 1984-06-26 Centre De Recherches De Pont A Mousson Road inspection manhole
FR2519046A1 (en) * 1981-12-29 1983-07-01 Pont A Mousson FLOOR LOOK
EP0083007A1 (en) * 1981-12-29 1983-07-06 Pont-A-Mousson S.A. Manhole cover
FR2682407A1 (en) * 1991-10-15 1993-04-16 A3C Metal Look for push or similar.
EP0538115A1 (en) * 1991-10-15 1993-04-21 A3C Metal Cover for manhole or the like

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