FR591169A - advanced extension ladders - Google Patents

advanced extension ladders

Info

Publication number
FR591169A
FR591169A FR591169DA FR591169A FR 591169 A FR591169 A FR 591169A FR 591169D A FR591169D A FR 591169DA FR 591169 A FR591169 A FR 591169A
Authority
FR
France
Prior art keywords
extension ladders
advanced extension
advanced
ladders
extension
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
Other languages
French (fr)
Inventor
Auguste Van Obbergen
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 filed Critical
Application granted granted Critical
Publication of FR591169A publication Critical patent/FR591169A/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
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/14—Comprising essentially pre-assembled two-dimensional frame-like elements, e.g. of rods in L- or H-shape, with or without bracing
    • 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/16—Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR591169D 1923-12-20 1924-12-16 advanced extension ladders Expired FR591169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE591169X 1923-12-20

Publications (1)

Publication Number Publication Date
FR591169A true FR591169A (en) 1925-06-30

Family

ID=3873817

Family Applications (1)

Application Number Title Priority Date Filing Date
FR591169D Expired FR591169A (en) 1923-12-20 1924-12-16 advanced extension ladders

Country Status (1)

Country Link
FR (1) FR591169A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150298948A1 (en) * 2014-04-21 2015-10-22 Randy Jackson Method and apparatus for maintaining the interior of a vertical structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150298948A1 (en) * 2014-04-21 2015-10-22 Randy Jackson Method and apparatus for maintaining the interior of a vertical structure
US10233065B2 (en) * 2014-04-21 2019-03-19 Randy Jackson Method and apparatus for maintaining the interior of a vertical structure

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