GB814430A - Improvements relating to collapsible ladders - Google Patents

Improvements relating to collapsible ladders

Info

Publication number
GB814430A
GB814430A GB191657A GB191657A GB814430A GB 814430 A GB814430 A GB 814430A GB 191657 A GB191657 A GB 191657A GB 191657 A GB191657 A GB 191657A GB 814430 A GB814430 A GB 814430A
Authority
GB
United Kingdom
Prior art keywords
rungs
improvements relating
ladders
ladder
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
GB191657A
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.)
TUBEWRIGHTS Ltd
Original Assignee
TUBEWRIGHTS Ltd
Filing date
Publication date
Application filed by TUBEWRIGHTS Ltd filed Critical TUBEWRIGHTS Ltd
Publication of GB814430A publication Critical patent/GB814430A/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
    • E06C9/06—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

814.430. Ladders. TUBEWRIGHTS Ltd., and BROWN, J. Oct. 8, 1957 [Jan. 18, 1957], No. 1916/57. Class 20(2) A collapsible ladder has rungs 1 of closed figures through which users may pass, connected substantially parallel to each other by flexible members 2 spaced about the rungs. Circular or oval hoops or triangles and rectangles of metal tubing may be used. The members 2 may be manilla, nylon, or steel ropes or chains. Lengths of ladder may be vertically joined by snap or S hooks engaging with thimbles or eyes.
GB191657A 1957-01-18 Improvements relating to collapsible ladders Expired GB814430A (en)

Publications (1)

Publication Number Publication Date
GB814430A true GB814430A (en) 1959-06-03

Family

ID=1627046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191657A Expired GB814430A (en) 1957-01-18 Improvements relating to collapsible ladders

Country Status (1)

Country Link
GB (1) GB814430A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429399A (en) * 1966-02-09 1969-02-25 Andre E Kruth Flexible ladder rendered rigid by use
GB2134581A (en) * 1983-01-14 1984-08-15 Milton Colson Ladder at least partially enclosing climber; ladder convertible to furniture
WO1987003328A1 (en) * 1985-11-27 1987-06-04 Ventz Julius P R Safety rope designed as a rope ladder
WO2000046477A1 (en) * 1997-08-20 2000-08-10 Per Nerlander Evacuation means
CN102777121A (en) * 2012-07-19 2012-11-14 李良杰 Safety escape ladder
CN103437698A (en) * 2013-08-26 2013-12-11 国家电网公司 Retractable insulating ladder for overhaul at high altitude

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429399A (en) * 1966-02-09 1969-02-25 Andre E Kruth Flexible ladder rendered rigid by use
GB2134581A (en) * 1983-01-14 1984-08-15 Milton Colson Ladder at least partially enclosing climber; ladder convertible to furniture
WO1987003328A1 (en) * 1985-11-27 1987-06-04 Ventz Julius P R Safety rope designed as a rope ladder
WO2000046477A1 (en) * 1997-08-20 2000-08-10 Per Nerlander Evacuation means
CN102777121A (en) * 2012-07-19 2012-11-14 李良杰 Safety escape ladder
CN103437698A (en) * 2013-08-26 2013-12-11 国家电网公司 Retractable insulating ladder for overhaul at high altitude

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