GB736400A - Improvements in or relating to ladders - Google Patents
Improvements in or relating to laddersInfo
- Publication number
- GB736400A GB736400A GB654552A GB654552A GB736400A GB 736400 A GB736400 A GB 736400A GB 654552 A GB654552 A GB 654552A GB 654552 A GB654552 A GB 654552A GB 736400 A GB736400 A GB 736400A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stile
- adjusted position
- serrated
- ladders
- ladder
- 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
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
- E06C7/44—Means for mounting ladders on uneven ground
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
736,400. Ladders. AYSCOUGH, T. H. N. March 10, 1953 [March 13, 1952], No. 6545/52. Class 20 (2). To enable a ladder to be used on uneven ground, steps &c. either or each of the stiles is provided with an independently adjustable member which may be locked in the adjusted position. A ladder-stile b, Fig. 4, has a serrated plate c screwed thereto, a coacting serrated member j which carries a foot g being locked to the stile in adjusted position by a bolt o carried by the stile and passing through a longitudinal slot l in the member j. The locking of the serrated members in engagement with each other in the adjusted position may be effected by a cam x, Fig. 6, pivoted at y in the side limbs of a stirrup v secured to the stile b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB654552A GB736400A (en) | 1952-03-13 | 1952-03-13 | Improvements in or relating to ladders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB654552A GB736400A (en) | 1952-03-13 | 1952-03-13 | Improvements in or relating to ladders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB736400A true GB736400A (en) | 1955-09-07 |
Family
ID=9816445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB654552A Expired GB736400A (en) | 1952-03-13 | 1952-03-13 | Improvements in or relating to ladders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB736400A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988010354A1 (en) * | 1987-06-24 | 1988-12-29 | William Houston Ferguson | Ladder safety device |
| FR2663075A1 (en) * | 1990-06-08 | 1991-12-13 | Testu Pierre | Horizontal device for supporting ladders, for adapting to staircases |
| WO1997044588A1 (en) * | 1996-05-22 | 1997-11-27 | Vesko Ananiev | Lockable adjustable length member |
| GB2354794A (en) * | 1999-09-03 | 2001-04-04 | Barrie Weatherall | Adjustable ladder stile extender |
| GB2436347A (en) * | 2006-03-21 | 2007-09-26 | Walker Projects Ltd | Levelling means |
-
1952
- 1952-03-13 GB GB654552A patent/GB736400A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988010354A1 (en) * | 1987-06-24 | 1988-12-29 | William Houston Ferguson | Ladder safety device |
| US4993514A (en) * | 1987-06-24 | 1991-02-19 | Ferguson William H | Ladder levelling device |
| FR2663075A1 (en) * | 1990-06-08 | 1991-12-13 | Testu Pierre | Horizontal device for supporting ladders, for adapting to staircases |
| WO1997044588A1 (en) * | 1996-05-22 | 1997-11-27 | Vesko Ananiev | Lockable adjustable length member |
| US6234710B1 (en) | 1996-05-22 | 2001-05-22 | Vesko Ananiev | Lockable adjustable length member |
| GB2354794A (en) * | 1999-09-03 | 2001-04-04 | Barrie Weatherall | Adjustable ladder stile extender |
| US6640932B1 (en) | 1999-09-03 | 2003-11-04 | Barrie Weatherall | Ladder stile extender |
| GB2436347A (en) * | 2006-03-21 | 2007-09-26 | Walker Projects Ltd | Levelling means |
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