ES271808U - Road inspection manhole - Google Patents

Road inspection manhole

Info

Publication number
ES271808U
ES271808U ES1983271808U ES271808U ES271808U ES 271808 U ES271808 U ES 271808U ES 1983271808 U ES1983271808 U ES 1983271808U ES 271808 U ES271808 U ES 271808U ES 271808 U ES271808 U ES 271808U
Authority
ES
Spain
Prior art keywords
cover
inspection manhole
road inspection
mate
undercut
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.)
Granted
Application number
ES1983271808U
Other languages
Spanish (es)
Other versions
ES271808Y (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pont a Mousson SA
Original Assignee
Pont a Mousson SA
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
Priority claimed from FR8022226A external-priority patent/FR2492432A1/en
Priority claimed from FR8117906A external-priority patent/FR2513286B2/en
Application filed by Pont a Mousson SA filed Critical Pont a Mousson SA
Publication of ES271808U publication Critical patent/ES271808U/en
Application granted granted Critical
Publication of ES271808Y publication Critical patent/ES271808Y/en
Expired legal-status Critical Current

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
    • E02D29/1427—Locking devices

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

A non-rocking manhole cover 2 fits within the cylindrical wall 3 of a frame 1 which has three support surfaces 9 each sloping downwardly to the horizontal in both the circumferential and radial directions. Between the surfaces 9 the frame has three radial surfaces 11 which may be undercut as shown. On its underside the cover 2 has six projections providing surfaces 14, 15. The three surfaces 14 mate with the surfaces 9 and the three surfaces 15 mate with the surfaces 11. The cover turns as it settles on the surfaces 9 and is self-locked by the undercut surfaces 11.
ES1983271808U 1980-10-17 1983-04-28 PERFECTED ROAD RECORD. Expired ES271808Y (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8022226A FR2492432A1 (en) 1980-10-17 1980-10-17 Carriageway manhole cover and frame - has friction held bearing and locking surfaces preventing cover rock under traffic loads
FR8117906A FR2513286B2 (en) 1981-09-23 1981-09-23 FLOOR LOOK

Publications (2)

Publication Number Publication Date
ES271808U true ES271808U (en) 1983-10-16
ES271808Y ES271808Y (en) 1984-04-16

Family

ID=26222037

Family Applications (2)

Application Number Title Priority Date Filing Date
ES1981268791U Expired ES268791Y (en) 1980-10-17 1981-10-15 PERFECTED ROAD RECORD.
ES1983271808U Expired ES271808Y (en) 1980-10-17 1983-04-28 PERFECTED ROAD RECORD.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES1981268791U Expired ES268791Y (en) 1980-10-17 1981-10-15 PERFECTED ROAD RECORD.

Country Status (4)

Country Link
DE (1) DE3141006C2 (en)
ES (2) ES268791Y (en)
GB (2) GB2085947B (en)
IT (1) IT1144896B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT380044B (en) * 1983-06-06 1986-03-25 Koessler Johann CONCLUSION FOR SHAFTS, e.g. ON ROADS AND KEYS HIEFUER
DE3801282A1 (en) * 1988-01-19 1988-08-04 Eichelmann Horst Shaft covering with safety self-locking mechanism
FR2682407B1 (en) * 1991-10-15 1994-01-07 A3C Metal LOOK FOR PAVEMENT OR THE LIKE.
FR2770861B1 (en) * 1997-11-13 2000-01-14 Pont A Mousson SQUARE OR RECTANGULAR PATHWAY DEVICE COMPRISING A SUPPORT FRAME AND A COVERING ELEMENT
GB2381817B (en) * 2001-11-10 2003-10-22 Clarksteel Ltd Improvements in and relating to access covers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB266482A (en) * 1925-12-05 1927-03-03 William Crabtree Improvements relating to manhole and like boxes and covers
GB482517A (en) * 1936-09-30 1938-03-30 Frederick Turnbull Improvements in and relating to manhole and like covers
GB492190A (en) * 1937-03-18 1938-09-16 Walter Needham Improvements in or relating to manhole and like covers and frames therefor for roads and pathways
GB535177A (en) * 1939-08-29 1941-04-01 Dudley & Dowell Ltd Improvements in or relating to gratings and covers for drains
DE2049923C3 (en) * 1970-10-10 1974-09-26 Rheinstahl Ag, 4300 Essen Hexagonal manhole cover
FR2300852A1 (en) * 1975-02-11 1976-09-10 Sambre & Meuse Usines STAMP FOR CIRCULAR SIGHT AND SIGHT EQUIPPED WITH THIS STAMP
DE3112641C2 (en) * 1980-04-04 1985-11-28 Pont-à-Mousson S.A., Nancy Manhole cover for a street manhole

Also Published As

Publication number Publication date
GB2147931A (en) 1985-05-22
IT1144896B (en) 1986-10-29
GB2085947A (en) 1982-05-06
IT8168347A0 (en) 1981-10-16
ES268791Y (en) 1984-02-16
DE3141006C2 (en) 1985-05-30
ES271808Y (en) 1984-04-16
GB2085947B (en) 1985-06-19
DE3141006A1 (en) 1982-05-19
GB2147931B (en) 1985-10-23
GB8404182D0 (en) 1984-03-21
ES268791U (en) 1983-08-01

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Legal Events

Date Code Title Description
FD1K Utility model lapsed

Effective date: 20000403