GB191119376A - Improvements in Extensible Ladders. - Google Patents

Improvements in Extensible Ladders.

Info

Publication number
GB191119376A
GB191119376A GB191119376DA GB191119376A GB 191119376 A GB191119376 A GB 191119376A GB 191119376D A GB191119376D A GB 191119376DA GB 191119376 A GB191119376 A GB 191119376A
Authority
GB
United Kingdom
Prior art keywords
locks
plates
ladders
releasing arms
extensible ladders
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
Harry Cottrell
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 GB191119376A publication Critical patent/GB191119376A/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

Abstract

19,376. Cottrell, H. Aug. 30. Ladders. - Relates to extension ladders of the kind described in Specification 22,540/10. The ladder locks c, and the releasing arms f, which are freely pivoted on the lower ends of the locks, have pin-and-slot connexions j, k and h, i with plates e secured to the sliding sections. The slots i, k are formed with raised rims, and may be made in the releasing arms, and in the locks, with the engaging pins on the plates e. Additional stops l for the locks may be fixed on the plates e.
GB191119376D 1911-08-30 1911-08-30 Improvements in Extensible Ladders. Expired GB191119376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191119376T 1911-08-30

Publications (1)

Publication Number Publication Date
GB191119376A true GB191119376A (en) 1912-02-29

Family

ID=32566445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191119376D Expired GB191119376A (en) 1911-08-30 1911-08-30 Improvements in Extensible Ladders.

Country Status (1)

Country Link
GB (1) GB191119376A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299306A (en) * 1979-12-07 1981-11-10 Emerson Electric Co. Extension ladder lock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299306A (en) * 1979-12-07 1981-11-10 Emerson Electric Co. Extension ladder lock

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