GB897553A - Counterbalanced access cover - Google Patents

Counterbalanced access cover

Info

Publication number
GB897553A
GB897553A GB40291/59A GB4029159A GB897553A GB 897553 A GB897553 A GB 897553A GB 40291/59 A GB40291/59 A GB 40291/59A GB 4029159 A GB4029159 A GB 4029159A GB 897553 A GB897553 A GB 897553A
Authority
GB
United Kingdom
Prior art keywords
lever
cover
frame
stud
nov
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
GB40291/59A
Other languages
English (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.)
BROADS Manufacturing Co Ltd
Original Assignee
BROADS Manufacturing Co 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 BROADS Manufacturing Co Ltd filed Critical BROADS Manufacturing Co Ltd
Priority to GB40291/59A priority Critical patent/GB897553A/en
Publication of GB897553A publication Critical patent/GB897553A/en
Priority to NL6515282A priority patent/NL6515282A/xx
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
    • E02D29/1463—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
    • E02D29/1418—Covers for manholes or the like; Frames for covers with implements to assist in lifting, e.g. counterweights, springs
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J13/00—Covers or similar closure members for pressure vessels in general
    • F16J13/16—Pivoted closures
    • F16J13/18—Pivoted closures pivoted directly on the frame
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J13/00—Covers or similar closure members for pressure vessels in general
    • F16J13/16—Pivoted closures
    • F16J13/20—Pivoted closures mounted by mobile fastening on swinging arms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2999/00—Subject-matter not otherwise provided for in this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Sewage (AREA)
GB40291/59A 1959-11-26 1959-11-26 Counterbalanced access cover Expired GB897553A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB40291/59A GB897553A (en) 1959-11-26 1959-11-26 Counterbalanced access cover
NL6515282A NL6515282A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1959-11-26 1965-11-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40291/59A GB897553A (en) 1959-11-26 1959-11-26 Counterbalanced access cover

Publications (1)

Publication Number Publication Date
GB897553A true GB897553A (en) 1962-05-30

Family

ID=10414151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40291/59A Expired GB897553A (en) 1959-11-26 1959-11-26 Counterbalanced access cover

Country Status (2)

Country Link
GB (1) GB897553A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6515282A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163467A (en) * 1984-07-13 1986-02-26 Turner Bros Manhole cover with torsion spring hinge to facilitate opening
FR2674879A1 (fr) * 1991-04-05 1992-10-09 Sodif Sa Dispositif de securite pour tampon articule de regard de chaussee.
FR2787476A1 (fr) * 1998-12-22 2000-06-23 Barat Sa Perfectionnements apportes a un dispositif de verrouillage d'une trappe d'acces aux galeries et ouvrages souterrains du genie civil, constituee d'au moins un vantail

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163467A (en) * 1984-07-13 1986-02-26 Turner Bros Manhole cover with torsion spring hinge to facilitate opening
FR2674879A1 (fr) * 1991-04-05 1992-10-09 Sodif Sa Dispositif de securite pour tampon articule de regard de chaussee.
FR2787476A1 (fr) * 1998-12-22 2000-06-23 Barat Sa Perfectionnements apportes a un dispositif de verrouillage d'une trappe d'acces aux galeries et ouvrages souterrains du genie civil, constituee d'au moins un vantail

Also Published As

Publication number Publication date
NL6515282A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-01-25

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