GB1129760A - Self-supported ladder - Google Patents

Self-supported ladder

Info

Publication number
GB1129760A
GB1129760A GB48199/66A GB4819966A GB1129760A GB 1129760 A GB1129760 A GB 1129760A GB 48199/66 A GB48199/66 A GB 48199/66A GB 4819966 A GB4819966 A GB 4819966A GB 1129760 A GB1129760 A GB 1129760A
Authority
GB
United Kingdom
Prior art keywords
ladder
props
frame
folded
stop
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
GB48199/66A
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.)
Up Right Inc
Original Assignee
Up Right Inc
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 Up Right Inc filed Critical Up Right Inc
Publication of GB1129760A publication Critical patent/GB1129760A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/38Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39Ladders having platforms; Ladders changeable into platforms
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/42Ladder feet; Supports therefor

Landscapes

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

Abstract

1,129,760. Ladders. UPRIGHT Inc. 27 Oct., 1966 [10 May, 1966], No. 48199/66. Heading A6L. [Also in Division El] A ladder 21 is pivoted on the upper horizontal tubes 12 of a frame having groundengaging props 32 for stabilizing the ladder which are pivoted offset on vertical tubes 13 of the frame so that, when the ladder is swung down to a horizontal position and the props are folded against the frame for moving the ladder, the props obstruct movement of the ladder to operative position and thus prevent its use with the props in folded position. The pivots 29 of the ladder are offset oppositely to the platform 24 on top of the ladder so that the centre of gravity is in such a position as to swing the ladder down to its folded position and prevent its use unless the ladder is positively secured by clamps 46. In operative position the lower tubes 34 of the props each extend half way across the frame and engage a stop 43. One prop can be raised to avoid the stop and be folded the other way so that it does not obstruct the ladder, so that the ladder can be used against a wall. A stop prevents similar movement of the other prop.
GB48199/66A 1966-05-10 1966-10-27 Self-supported ladder Expired GB1129760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US549011A US3327810A (en) 1966-05-10 1966-05-10 Self-supported ladder

Publications (1)

Publication Number Publication Date
GB1129760A true GB1129760A (en) 1968-10-09

Family

ID=24191298

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48199/66A Expired GB1129760A (en) 1966-05-10 1966-10-27 Self-supported ladder

Country Status (2)

Country Link
US (1) US3327810A (en)
GB (1) GB1129760A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515243A (en) * 1969-05-06 1970-06-02 Joseph R Ellen Jr Lift device
US3664458A (en) * 1971-01-20 1972-05-23 Lorance E Sterns Ladder scaffold vehicle
US4155424A (en) * 1978-03-06 1979-05-22 Up-Right, Inc. Adjustable-width scaffold
CA1267394A (en) * 1989-05-31 1990-04-03 Janis R. Vitols Ladder support
US4923050A (en) * 1989-08-17 1990-05-08 Vitols John R Ladder support
DE19707799B4 (en) * 1997-02-27 2010-01-28 Hymer-Leichtmetallbau Gmbh & Co. Kg Work scaffold with raised and lowered boom
US5960906A (en) * 1998-04-20 1999-10-05 Henderson; Arlanders Movable ladder support assembly
GB0113835D0 (en) * 2001-06-06 2001-08-01 Harrison Steven E Ladder stabilisers
US6604606B1 (en) * 2002-02-21 2003-08-12 Mcdougal Art Portable utility stand
US7740106B2 (en) * 2004-05-10 2010-06-22 Capital Safety Group Winnipeg Ltd. Mobile mount for attachment of a fall arrest system
DE102006060730B4 (en) * 2006-12-21 2009-09-24 Hymer-Leichtmetallbau Gmbh & Co. Kg Boom for a ladder or work scaffold
US9085936B2 (en) 2012-03-19 2015-07-21 William R. Mosier Ladder support device
US8752671B1 (en) * 2013-04-11 2014-06-17 Diane Henderson Holman Portable collapsible horse-mounting device
US9151115B1 (en) * 2014-02-13 2015-10-06 Michael Forte, Jr. Stabilized ladder assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667296A (en) * 1950-02-18 1954-01-26 J H Holan Corp Aerial ladder
US2964122A (en) * 1958-01-07 1960-12-13 Up Right Inc Scaffold
US3007540A (en) * 1959-10-16 1961-11-07 John P Reinhardt Personnel work structure convertible to extension ladder and scaffolding means

Also Published As

Publication number Publication date
US3327810A (en) 1967-06-27

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