GB628935A - Improvements in ladders - Google Patents

Improvements in ladders

Info

Publication number
GB628935A
GB628935A GB2428547A GB2428547A GB628935A GB 628935 A GB628935 A GB 628935A GB 2428547 A GB2428547 A GB 2428547A GB 2428547 A GB2428547 A GB 2428547A GB 628935 A GB628935 A GB 628935A
Authority
GB
United Kingdom
Prior art keywords
ladders
pivot
class
clutch
birtwhistle
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
GB2428547A
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
Priority to GB2428547A priority Critical patent/GB628935A/en
Publication of GB628935A publication Critical patent/GB628935A/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
    • E06C7/42—Ladder feet; Supports therefor

Landscapes

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

Abstract

628,935. Ladders. BIRTWHISTLE, H. Sept. 3, 1947, No. 24285. [Class 20(ii)] In a strut A pivoted to the bottom of a ladder and held at any desired angle by a circular toothed clutch on the pivot, clamped by a wheel D screwing on the end of the pivot, the clutch is disengaged by a spring. Specification 14108/09, [Class 20 (ii) ] , is referred to.
GB2428547A 1947-09-03 1947-09-03 Improvements in ladders Expired GB628935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2428547A GB628935A (en) 1947-09-03 1947-09-03 Improvements in ladders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2428547A GB628935A (en) 1947-09-03 1947-09-03 Improvements in ladders

Publications (1)

Publication Number Publication Date
GB628935A true GB628935A (en) 1949-09-07

Family

ID=10209295

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2428547A Expired GB628935A (en) 1947-09-03 1947-09-03 Improvements in ladders

Country Status (1)

Country Link
GB (1) GB628935A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146378A (en) * 1983-09-12 1985-04-17 Michael Charles Jenkins Safety device for a ladder
GB2232715A (en) * 1989-06-07 1990-12-19 Paul F Egan Lockable pivot joint
BE1018435A3 (en) * 2007-06-04 2010-11-09 Missotten Marc LADDER PROTECTION.
DE202013005085U1 (en) 2013-06-04 2013-07-08 Elke Pernet Ladder with slide-out protection
DE102013000687A1 (en) 2013-01-11 2014-07-17 Elke Pernet Ladder, has freewheel axle attached to spar in lower or upper region of spar, where freewheel axle is rotatable up to specific degrees for opposing slipping away force, and safety stay is attached to end of freewheel axle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146378A (en) * 1983-09-12 1985-04-17 Michael Charles Jenkins Safety device for a ladder
GB2232715A (en) * 1989-06-07 1990-12-19 Paul F Egan Lockable pivot joint
BE1018435A3 (en) * 2007-06-04 2010-11-09 Missotten Marc LADDER PROTECTION.
DE102013000687A1 (en) 2013-01-11 2014-07-17 Elke Pernet Ladder, has freewheel axle attached to spar in lower or upper region of spar, where freewheel axle is rotatable up to specific degrees for opposing slipping away force, and safety stay is attached to end of freewheel axle
DE202013005085U1 (en) 2013-06-04 2013-07-08 Elke Pernet Ladder with slide-out protection

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