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IT1144998B - PROCEDURE AND APPARATUS FOR THE MANUFACTURE OF FRAMES FOR MAN'S COVERS AND SIMILAR OPENINGS AND FRAME MANUFACTURED WITH THE PROCEDURE - Google Patents

PROCEDURE AND APPARATUS FOR THE MANUFACTURE OF FRAMES FOR MAN'S COVERS AND SIMILAR OPENINGS AND FRAME MANUFACTURED WITH THE PROCEDURE

Info

Publication number
IT1144998B
IT1144998B IT68392/81A IT6839281A IT1144998B IT 1144998 B IT1144998 B IT 1144998B IT 68392/81 A IT68392/81 A IT 68392/81A IT 6839281 A IT6839281 A IT 6839281A IT 1144998 B IT1144998 B IT 1144998B
Authority
IT
Italy
Prior art keywords
procedure
cover
frame
man
frames
Prior art date
Application number
IT68392/81A
Other languages
Italian (it)
Other versions
IT8168392A0 (en
Inventor
David Martin Harvey
Original Assignee
Dover Eng Works Ltd
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 Dover Eng Works Ltd filed Critical Dover Eng Works Ltd
Publication of IT8168392A0 publication Critical patent/IT8168392A0/en
Application granted granted Critical
Publication of IT1144998B publication Critical patent/IT1144998B/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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)
  • Special Wing (AREA)
  • Laminated Bodies (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Wing Frames And Configurations (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Building Environments (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Packaging For Recording Disks (AREA)

Abstract

A manhole cover frame (F) is moulded in one piece of a hardenable material such as concrete which is poured into a jig (1) and is actually moulded against those surfaces of a manhole cover (C) with which it is to interfit in use. When the frame (F) is matched to the cover (C) used to mould it, there results a perfect fit between the two. The surfaces of the cover (C) which are to seat against the frame (F) are machined prior to use of the cover (C) in the moulding process, so that a closely mated interface is obtained between the cover (C) and the frame (F). Alternatively, the cover surfaces are not machined but are coated with a low-frictional material.
IT68392/81A 1980-10-27 1981-10-27 PROCEDURE AND APPARATUS FOR THE MANUFACTURE OF FRAMES FOR MAN'S COVERS AND SIMILAR OPENINGS AND FRAME MANUFACTURED WITH THE PROCEDURE IT1144998B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8034487A GB2085796B (en) 1980-10-27 1980-10-27 Manufacturing manhole cover frames

Publications (2)

Publication Number Publication Date
IT8168392A0 IT8168392A0 (en) 1981-10-27
IT1144998B true IT1144998B (en) 1986-10-29

Family

ID=10516898

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68392/81A IT1144998B (en) 1980-10-27 1981-10-27 PROCEDURE AND APPARATUS FOR THE MANUFACTURE OF FRAMES FOR MAN'S COVERS AND SIMILAR OPENINGS AND FRAME MANUFACTURED WITH THE PROCEDURE

Country Status (19)

Country Link
EP (1) EP0050928B1 (en)
JP (1) JPS57104730A (en)
AT (1) ATE6749T1 (en)
AU (1) AU530825B2 (en)
BE (1) BE890861A (en)
BR (1) BR8106921A (en)
CA (1) CA1169235A (en)
CH (1) CH647029A5 (en)
CY (1) CY1267A (en)
DE (1) DE3162819D1 (en)
DK (1) DK470981A (en)
ES (1) ES8302154A1 (en)
FR (1) FR2492867A1 (en)
GB (1) GB2085796B (en)
IT (1) IT1144998B (en)
MY (1) MY8500882A (en)
NO (1) NO813583L (en)
SG (1) SG54684G (en)
ZA (1) ZA816855B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759505A (en) * 2016-12-08 2017-05-31 中国冶集团有限公司 For the cast-in-place adjustable formwork and its casting method of municipal manhole cover plate

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8325048D0 (en) * 1983-09-19 1983-10-19 Dover Eng Works Ltd Covers and frames
FR2630942B1 (en) * 1988-05-05 1991-04-05 Pont A Mousson FOUNDRY PIECE PROVIDED WITH A BREAKABLE PELLET
BE1008585A3 (en) * 1994-03-22 1996-06-04 Kruyfhooft Christina Method for producing a manhole cover and manhole cover obtained in this way
DE29618587U1 (en) * 1996-10-25 1997-01-02 Hermann-Heinz Burger Gas- und Wasserarmaturen GmbH, 59423 Unna Street cap
GB2335220B (en) * 1998-03-12 2000-06-07 Aco Technologies Plc Access cover and frame
GB2368604B (en) * 2000-11-04 2004-12-01 C I S Ground surface access assemblies
ITPI20110048A1 (en) * 2011-04-26 2012-10-27 Ferb Figli Di Ezio Rossi Spa PROCEDURE FOR CONTEMPORARY MERGER IN A SINGLE FORM OF MORE COMPLEMENTARY JETS
US10011971B1 (en) * 2015-07-14 2018-07-03 David L. Neathery Manhole inserts and manhole insert gasket fabrication methods
CN109865822A (en) * 2017-12-05 2019-06-11 重庆英格力铸造科技有限公司 A kind of mechanical matched mold casting machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7420923U (en) * 1974-10-31 Guss Und Armaturwerk Kaiserslautern Frames made of cast iron and concrete for manhole covers, street gullies and the like
FR1013982A (en) * 1948-07-07 1952-08-06 Neyret Beylier & Piccard Picte Device and method for manufacturing elements, for constituting slabs for soundproof ceilings or walls
DE1121554B (en) * 1953-06-02 1962-01-04 Dover Eng Works Ltd Frame for manhole or manhole cover
US2908063A (en) * 1955-09-16 1959-10-13 Herbert S Jones Mold for forming concrete frames
GB1445565A (en) * 1972-08-02 1976-08-11 Cement & Concrete Ass Concrete articles
NO134760C (en) * 1973-04-13 1976-12-08 Dempa As
GB1468835A (en) * 1974-07-26 1977-03-30 Stoner Saunders Ltd Manhole covers
DE2537257A1 (en) * 1975-08-21 1977-02-24 Passavant Werke Load bearing composite ring for manhole cover - has upper and lower cast iron rings connected with concrete ring
GB2066335B (en) * 1979-12-28 1983-06-02 Dover Eng Works Ltd Manhole covers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759505A (en) * 2016-12-08 2017-05-31 中国冶集团有限公司 For the cast-in-place adjustable formwork and its casting method of municipal manhole cover plate
CN106759505B (en) * 2016-12-08 2019-04-23 中国一冶集团有限公司 Cast-in-place adjustable formwork and its casting method for municipal manhole cover plate

Also Published As

Publication number Publication date
DK470981A (en) 1982-04-28
JPS57104730A (en) 1982-06-29
DE3162819D1 (en) 1984-04-26
BE890861A (en) 1982-02-15
CA1169235A (en) 1984-06-19
CH647029A5 (en) 1984-12-28
GB2085796A (en) 1982-05-06
EP0050928B1 (en) 1984-03-21
SG54684G (en) 1985-03-08
ES506530A0 (en) 1983-01-01
IT8168392A0 (en) 1981-10-27
AU7615281A (en) 1982-05-06
CY1267A (en) 1984-11-23
ZA816855B (en) 1982-09-29
FR2492867A1 (en) 1982-04-30
GB2085796B (en) 1984-06-27
NO813583L (en) 1982-04-28
BR8106921A (en) 1982-07-13
EP0050928A1 (en) 1982-05-05
ATE6749T1 (en) 1984-04-15
FR2492867B1 (en) 1984-05-04
AU530825B2 (en) 1983-07-28
ES8302154A1 (en) 1983-01-01
MY8500882A (en) 1985-12-31

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