GB440223A - Improvements in and relating to manhole covers - Google Patents

Improvements in and relating to manhole covers

Info

Publication number
GB440223A
GB440223A GB3614234A GB3614234A GB440223A GB 440223 A GB440223 A GB 440223A GB 3614234 A GB3614234 A GB 3614234A GB 3614234 A GB3614234 A GB 3614234A GB 440223 A GB440223 A GB 440223A
Authority
GB
United Kingdom
Prior art keywords
sides
sections
lugs
recesses
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
GB3614234A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3614234A priority Critical patent/GB440223A/en
Publication of GB440223A publication Critical patent/GB440223A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16J13/02—Detachable closure members; Means for tightening closures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

440,223. Manhole covers. ROGERS, S. S., Grosvenor House, Somerset Road, Brentford, Middlesex. Dec. 17, 1934, Nos. 36142/34 and 13986/35. [Class 107] The two triangular sections A, A<1> of a rectangular manhole cover are each supported at three points, one support being provided by the adjacent section. In the construction shown, the supports are provided by projecting lugs C which fit into recesses D formed in the sides B. In a modification, one end of the side B of each section is provided with an upper projecting lug and the opposite end with a lower projecting lug, all so arranged that the two lower lugs fit beneath the upper lugs when the sections are assembled. The sections may be loosely connected by bolts or pins passing through the sides B and also through stiffening webs F. Recesses G may be provided in the sides B adjacent the pins, whereby the latter may be utilized in lifting the cover.
GB3614234A 1934-12-17 1934-12-17 Improvements in and relating to manhole covers Expired GB440223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3614234A GB440223A (en) 1934-12-17 1934-12-17 Improvements in and relating to manhole covers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3614234A GB440223A (en) 1934-12-17 1934-12-17 Improvements in and relating to manhole covers

Publications (1)

Publication Number Publication Date
GB440223A true GB440223A (en) 1935-12-23

Family

ID=10385377

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3614234A Expired GB440223A (en) 1934-12-17 1934-12-17 Improvements in and relating to manhole covers

Country Status (1)

Country Link
GB (1) GB440223A (en)

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