FR1180410A - Caving valve for hydraulic mine prop - Google Patents
Caving valve for hydraulic mine propInfo
- Publication number
- FR1180410A FR1180410A FR1180410DA FR1180410A FR 1180410 A FR1180410 A FR 1180410A FR 1180410D A FR1180410D A FR 1180410DA FR 1180410 A FR1180410 A FR 1180410A
- Authority
- FR
- France
- Prior art keywords
- caving
- valve
- mine prop
- hydraulic mine
- hydraulic
- 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
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
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 |
---|---|---|---|
DE1180410X | 1956-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1180410A true FR1180410A (en) | 1959-06-04 |
Family
ID=7730178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1180410D Expired FR1180410A (en) | 1956-09-29 | 1957-07-31 | Caving valve for hydraulic mine prop |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1180410A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3055626A (en) * | 1960-04-09 | 1962-09-25 | Mastabar Mining Equip Co Ltd | Hydraulic supports |
-
1957
- 1957-07-31 FR FR1180410D patent/FR1180410A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3055626A (en) * | 1960-04-09 | 1962-09-25 | Mastabar Mining Equip Co Ltd | Hydraulic supports |
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