GB1421131A - Collapsible laddern - Google Patents

Collapsible laddern

Info

Publication number
GB1421131A
GB1421131A GB390772A GB390772A GB1421131A GB 1421131 A GB1421131 A GB 1421131A GB 390772 A GB390772 A GB 390772A GB 390772 A GB390772 A GB 390772A GB 1421131 A GB1421131 A GB 1421131A
Authority
GB
United Kingdom
Prior art keywords
ladder
spacers
recess
side members
collapsible
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
GB390772A
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 GB390772A priority Critical patent/GB1421131A/en
Publication of GB1421131A publication Critical patent/GB1421131A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/52—Ladders in general with non-rigid longitudinal members
    • E06C1/56—Rope or chain ladders
    • 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
    • E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
    • E06C9/14—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with non-rigid longitudinal members, e.g. rope or chain ladders, ladders of the lazy-tongs type

Landscapes

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

Abstract

1421131 Collapsible ladder H OLSEN 29 Jan 1973 [27 Jan 1972] 3907/72 Heading E1S A collapsible ladder comprises rungs 1 connected to two side members made up of pivotally connected sections 2, 3 whereby the ladder may be folded, and adjacent sections 2, 3 have apertures at their ends to receive pivots and are provided near their common pivot 4 with a projection on one section engaging a recess in the other section, whereby when the ladder is unfolded to its straight condition the projection abuts an edge of the recess to prevent further relative rotation of the adjacent sections 2, 3; pivotally mounted on the side members are spacers 8 which, when the ladder is hung vertically, fall into a horizontal position for abutting a wall on which the ladder is used, the spacers having stops to limit rotation. The ladder may have one end secured in a container 11 which will accommodate the collapsed ladder, the container being secured to a wall &c of a building whereby the ladder may be used as a fire escape. The recess is arcuate and extends around the associated pivot, and the projection slides therein. The spacers 8 are mounted on the pivots 4, and their stops abut the side members. The rungs 1 are hollow, and the ladder is of aluminium.
GB390772A 1972-01-27 1972-01-27 Collapsible laddern Expired GB1421131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB390772A GB1421131A (en) 1972-01-27 1972-01-27 Collapsible laddern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB390772A GB1421131A (en) 1972-01-27 1972-01-27 Collapsible laddern

Publications (1)

Publication Number Publication Date
GB1421131A true GB1421131A (en) 1976-01-14

Family

ID=9767138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB390772A Expired GB1421131A (en) 1972-01-27 1972-01-27 Collapsible laddern

Country Status (1)

Country Link
GB (1) GB1421131A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123470A (en) * 1982-07-14 1984-02-01 Collafield Limited Fire escape ladder
GB2156888A (en) * 1984-04-02 1985-10-16 Christopher Richard Rumsey Quick descending fire escape
US10435897B2 (en) * 2016-05-13 2019-10-08 The Boeing Company Fall protection tool for use in blocking an opening

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123470A (en) * 1982-07-14 1984-02-01 Collafield Limited Fire escape ladder
GB2156888A (en) * 1984-04-02 1985-10-16 Christopher Richard Rumsey Quick descending fire escape
US10435897B2 (en) * 2016-05-13 2019-10-08 The Boeing Company Fall protection tool for use in blocking an opening

Similar Documents

Publication Publication Date Title
GB1250781A (en)
ES435574A1 (en) Foldable ladder
JPS54154671A (en) Collapsible double ladder
GB1421131A (en) Collapsible laddern
GB1129760A (en) Self-supported ladder
GB1260476A (en) Improvements in or relating to supporting structures
GB449560A (en) Improvements in cupboard folding stairs
US2166255A (en) Stepladder
GB1179970A (en) A Device for Use with a Ladder.
GB935149A (en) Foldable ladder
GB1371237A (en) Folding ladders
GB532788A (en) Improvements in or relating to casements and like structures
US1648844A (en) Stepladder
CN219219731U (en) Folding scaffold
GB611675A (en) Improvements relating to garden frames
US3695389A (en) Collapsible ladder assembly
GB419574A (en) Improvements in or relating to collapsible ladders
GB1301756A (en)
US1368438A (en) Extensible stepladder
GB1063582A (en) Improvements in ladders and platforms
GB1348777A (en) Painters and building workers temporary collapsible weather protection canopy
GB750320A (en) Improvements in or relating to step ladders
GB1362021A (en) Stepladders
ES290028U (en) Double folding portable staircase (Machine-translation by Google Translate, not legally binding)
FR1421544A (en) Extendable ladder, single upright, and folding rungs

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee