GB777968A - Metal ladders - Google Patents

Metal ladders

Info

Publication number
GB777968A
GB777968A GB28483/54A GB2848354A GB777968A GB 777968 A GB777968 A GB 777968A GB 28483/54 A GB28483/54 A GB 28483/54A GB 2848354 A GB2848354 A GB 2848354A GB 777968 A GB777968 A GB 777968A
Authority
GB
United Kingdom
Prior art keywords
rungs
channel
welded
metal
uprights
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
GB28483/54A
Other languages
English (en)
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
Publication of GB777968A publication Critical patent/GB777968A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/083—Bracket type connection
    • 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
    • E06C1/10—Sections fitted end to end
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/085—Connections between rungs or treads and longitudinal members achieved by deforming the rung or the stile
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/086—Connections between rungs or treads and longitudinal members with a connecting piece inserted in a hollow rung
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/087—Connections between rungs or treads and longitudinal members with a connecting piece installed around the rung
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/10—Reinforcements for ladders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
GB28483/54A 1953-10-05 1954-10-04 Metal ladders Expired GB777968A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR777968X 1953-10-05
FR324149X 1953-10-05

Publications (1)

Publication Number Publication Date
GB777968A true GB777968A (en) 1957-07-03

Family

ID=34740719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28483/54A Expired GB777968A (en) 1953-10-05 1954-10-04 Metal ladders

Country Status (2)

Country Link
BE (1) BE532306A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB777968A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213970B (de) * 1957-09-04 1966-04-07 Ernst Nofen Broncewarenfabrik Leichtmetallsprossenleiter
US3653697A (en) * 1968-08-16 1972-04-04 Herbert Ernst Prefabricated joint
EP0076420A3 (en) * 1981-09-23 1984-05-16 Albert Bocker Gmbh & Co. Kg Strengthened telescopic jib

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213970B (de) * 1957-09-04 1966-04-07 Ernst Nofen Broncewarenfabrik Leichtmetallsprossenleiter
US3653697A (en) * 1968-08-16 1972-04-04 Herbert Ernst Prefabricated joint
EP0076420A3 (en) * 1981-09-23 1984-05-16 Albert Bocker Gmbh & Co. Kg Strengthened telescopic jib

Also Published As

Publication number Publication date
BE532306A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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