FR738926A - échelle en acier - Google Patents
échelle en acierInfo
- Publication number
- FR738926A FR738926A FR738926DA FR738926A FR 738926 A FR738926 A FR 738926A FR 738926D A FR738926D A FR 738926DA FR 738926 A FR738926 A FR 738926A
- Authority
- FR
- France
- Prior art keywords
- steel ladder
- ladder
- steel
- 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
- E06C7/08—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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32426—Plural distinct positions
- Y10T403/32434—Unidirectional movement, e.g., ratchet, etc.
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32426—Plural distinct positions
- Y10T403/32442—At least one discrete position
- Y10T403/32451—Step-by-step adjustment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1912331X | 1931-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR738926A true FR738926A (fr) | 1932-12-31 |
Family
ID=36942640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR738926D Expired FR738926A (fr) | 1931-11-05 | 1932-06-22 | échelle en acier |
Country Status (2)
Country | Link |
---|---|
US (1) | US1912331A (fr) |
FR (1) | FR738926A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511077A (en) * | 1948-10-23 | 1950-06-13 | Jr Austin T Race | Ladder |
US2788167A (en) * | 1953-07-13 | 1957-04-09 | G B Haynes | Molded ladder |
US2966229A (en) * | 1955-02-15 | 1960-12-27 | Grant E Frezieres | Ladder construction |
SE541247C2 (en) * | 2016-04-04 | 2019-05-14 | Telesteps Ab | A ladder tube for a collapsible ladder and ladders including such tubes |
-
1932
- 1932-06-22 FR FR738926D patent/FR738926A/fr not_active Expired
- 1932-09-03 US US631704A patent/US1912331A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US1912331A (en) | 1933-05-30 |
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