FR1009772A - Poteau de mine - Google Patents
Poteau de mineInfo
- Publication number
- FR1009772A FR1009772A FR1009772DA FR1009772A FR 1009772 A FR1009772 A FR 1009772A FR 1009772D A FR1009772D A FR 1009772DA FR 1009772 A FR1009772 A FR 1009772A
- Authority
- FR
- France
- Prior art keywords
- pit prop
- prop
- pit
- 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
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/43—Details of wedges
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Clamps And Clips (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1009772T | 1948-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1009772A true FR1009772A (fr) | 1952-06-03 |
Family
ID=9568440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1009772D Expired FR1009772A (fr) | 1948-06-24 | 1948-06-24 | Poteau de mine |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE872189C (fr) |
FR (1) | FR1009772A (fr) |
-
1948
- 1948-06-24 FR FR1009772D patent/FR1009772A/fr not_active Expired
- 1948-10-01 DE DEP9631A patent/DE872189C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE872189C (de) | 1953-03-30 |
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