GB528013A - Improvements in and relating to steps for manholes and the like - Google Patents

Improvements in and relating to steps for manholes and the like

Info

Publication number
GB528013A
GB528013A GB1250039A GB1250039A GB528013A GB 528013 A GB528013 A GB 528013A GB 1250039 A GB1250039 A GB 1250039A GB 1250039 A GB1250039 A GB 1250039A GB 528013 A GB528013 A GB 528013A
Authority
GB
United Kingdom
Prior art keywords
wall
manholes
steps
shuttering
wedge
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
GB1250039A
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 GB1250039A priority Critical patent/GB528013A/en
Publication of GB528013A publication Critical patent/GB528013A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
    • E06C9/04—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted in the form of climbing irons or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

528,013. Wall steps. YOUNG, W. April 26, 1939, No. 12500. [Class 20 (ii)] A wall step for manholes comprises a U- shaped frame divided into two portions by an intermediate plate 2 which straddles the legs and acts as a stop plate during the construction of the'wall to prevent concrete passing through the aperture 7 in the shuttering 6. The shuttering is held in position by a wedge 8 passing through the loop 1 forming the step portion of the frame, while the ends of the legs are provided with hooks 4 to engage the concrete. A rib may be provided on the inner face of the step portion to abut against the wedge and for curved or inclined walls the plate 2 is correspondingly shaped or inclined.
GB1250039A 1939-04-26 1939-04-26 Improvements in and relating to steps for manholes and the like Expired GB528013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1250039A GB528013A (en) 1939-04-26 1939-04-26 Improvements in and relating to steps for manholes and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1250039A GB528013A (en) 1939-04-26 1939-04-26 Improvements in and relating to steps for manholes and the like

Publications (1)

Publication Number Publication Date
GB528013A true GB528013A (en) 1940-10-21

Family

ID=10005732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250039A Expired GB528013A (en) 1939-04-26 1939-04-26 Improvements in and relating to steps for manholes and the like

Country Status (1)

Country Link
GB (1) GB528013A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105756553A (en) * 2016-05-11 2016-07-13 成都市东方电力线路构件厂 Foot ladder structure favorable for improving climbing safety of climber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105756553A (en) * 2016-05-11 2016-07-13 成都市东方电力线路构件厂 Foot ladder structure favorable for improving climbing safety of climber

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