GB919221A - Improvements in or relating to step-ladders - Google Patents
Improvements in or relating to step-laddersInfo
- Publication number
- GB919221A GB919221A GB2213560A GB2213560A GB919221A GB 919221 A GB919221 A GB 919221A GB 2213560 A GB2213560 A GB 2213560A GB 2213560 A GB2213560 A GB 2213560A GB 919221 A GB919221 A GB 919221A
- Authority
- GB
- United Kingdom
- Prior art keywords
- legs
- ladders
- stile
- bolted
- june
- 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
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
Landscapes
- Ladders (AREA)
Abstract
919,221. Ladders. GRENFELL, N. W. June 13, 1961 [June 24, 1960], No. 22135/60. Class 20 (2). [Also in Group XXV] A step-ladder hinge comprises two parallel plates 1 bolted on each side of one of the ladder stiles 5 and projecting rearwardly from the stile and having a hinge pin 8 mounted in them on which pivots a flap 9 bolted to a leg 13 of the back support. Such a hinge connects each stile to the opposed leg of the back support. The two plates may be the legs of U-shaped member the base of which engages the front of the stile, Fig. 7 (not shown). With ladders having back legs which cross each other the legs are pivoted to the flaps 9 and the legs are connected by a bolt in slots in the legs to allow variation of the crossing angle of the legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2213560A GB919221A (en) | 1960-06-24 | 1960-06-24 | Improvements in or relating to step-ladders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2213560A GB919221A (en) | 1960-06-24 | 1960-06-24 | Improvements in or relating to step-ladders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB919221A true GB919221A (en) | 1963-02-20 |
Family
ID=10174462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2213560A Expired GB919221A (en) | 1960-06-24 | 1960-06-24 | Improvements in or relating to step-ladders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB919221A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2312707A (en) * | 1996-05-03 | 1997-11-05 | Richard Michael Dunne | Box leaf hinge |
| CN109403842A (en) * | 2018-11-22 | 2019-03-01 | 国网新疆电力有限公司阿克苏供电公司 | Adjustable engineering ladder |
| CN112772135A (en) * | 2021-01-12 | 2021-05-11 | 宁夏农林科学院园艺研究所(宁夏设施农业工程技术研究中心) | Support frame convenient for picking Lingwu long jujube |
-
1960
- 1960-06-24 GB GB2213560A patent/GB919221A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2312707A (en) * | 1996-05-03 | 1997-11-05 | Richard Michael Dunne | Box leaf hinge |
| CN109403842A (en) * | 2018-11-22 | 2019-03-01 | 国网新疆电力有限公司阿克苏供电公司 | Adjustable engineering ladder |
| CN109403842B (en) * | 2018-11-22 | 2024-05-03 | 国网新疆电力有限公司阿克苏供电公司 | Adjustable engineering ladder |
| CN112772135A (en) * | 2021-01-12 | 2021-05-11 | 宁夏农林科学院园艺研究所(宁夏设施农业工程技术研究中心) | Support frame convenient for picking Lingwu long jujube |
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