GB190921877A - Improvements in Extensible Ladders. - Google Patents

Improvements in Extensible Ladders.

Info

Publication number
GB190921877A
GB190921877A GB190921877DA GB190921877A GB 190921877 A GB190921877 A GB 190921877A GB 190921877D A GB190921877D A GB 190921877DA GB 190921877 A GB190921877 A GB 190921877A
Authority
GB
United Kingdom
Prior art keywords
ladders
sides
rungs
catches
ladder
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
Inventor
John Gladstone Roberts
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
Application granted granted Critical
Publication of GB190921877A publication Critical patent/GB190921877A/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
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic

Landscapes

  • Ladders (AREA)

Abstract

21,877. Roberts, J. G. Sept. 25. Ladders. - Telescopic ladders, provided with wires b, secured to the ladder sides, and pivoted catches f to lock the ladders together in extended position, are constructed with tubular rungs d fitted in sockets in the ladder sides, and rungs d<1> which are passed through the sides and riveted over washers e. The movement of the catches is limited by forming them with. slots h which engage a rung d<1>.
GB190921877D 1909-09-25 1909-09-25 Improvements in Extensible Ladders. Expired GB190921877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190921877T 1909-09-25

Publications (1)

Publication Number Publication Date
GB190921877A true GB190921877A (en) 1910-07-07

Family

ID=32557770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190921877D Expired GB190921877A (en) 1909-09-25 1909-09-25 Improvements in Extensible Ladders.

Country Status (1)

Country Link
GB (1) GB190921877A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3047090A4 (en) * 2013-09-18 2017-05-10 Wing Enterprises, Inc. Ladders including rope and pulley system and fall protection
CN110454078A (en) * 2019-08-21 2019-11-15 钱思愉 A kind of architectural engineering ladder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3047090A4 (en) * 2013-09-18 2017-05-10 Wing Enterprises, Inc. Ladders including rope and pulley system and fall protection
US9988842B2 (en) 2013-09-18 2018-06-05 Wing Enterprises, Incorporated Ladders including rope and pulley system and fall protection device
CN110454078A (en) * 2019-08-21 2019-11-15 钱思愉 A kind of architectural engineering ladder
CN110454078B (en) * 2019-08-21 2020-10-27 钱思愉 Ladder for building engineering

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