FR1047680A - mine stanchion - Google Patents
mine stanchionInfo
- Publication number
- FR1047680A FR1047680A FR1047680DA FR1047680A FR 1047680 A FR1047680 A FR 1047680A FR 1047680D A FR1047680D A FR 1047680DA FR 1047680 A FR1047680 A FR 1047680A
- Authority
- FR
- France
- Prior art keywords
- stanchion
- mine
- mine stanchion
- 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
- E21D15/285—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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1047680X | 1950-03-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1047680A true FR1047680A (en) | 1953-12-16 |
Family
ID=19867791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1047680D Expired FR1047680A (en) | 1950-03-16 | 1951-03-12 | mine stanchion |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1047680A (en) |
-
1951
- 1951-03-12 FR FR1047680D patent/FR1047680A/en not_active Expired
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