FR1198137A - étançon hydraulique - Google Patents
étançon hydrauliqueInfo
- Publication number
- FR1198137A FR1198137A FR1198137DA FR1198137A FR 1198137 A FR1198137 A FR 1198137A FR 1198137D A FR1198137D A FR 1198137DA FR 1198137 A FR1198137 A FR 1198137A
- Authority
- FR
- France
- Prior art keywords
- hydraulic prop
- prop
- 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
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
- E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators
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 |
---|---|---|---|
FR1198137T | 1958-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1198137A true FR1198137A (fr) | 1959-12-04 |
Family
ID=9669957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1198137D Expired FR1198137A (fr) | 1958-06-03 | 1958-06-03 | étançon hydraulique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1198137A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109113771A (zh) * | 2018-07-17 | 2019-01-01 | 北京天地玛珂电液控制***有限公司 | 基于bp神经网络模型的液压支架电液自适应控制*** |
-
1958
- 1958-06-03 FR FR1198137D patent/FR1198137A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109113771A (zh) * | 2018-07-17 | 2019-01-01 | 北京天地玛珂电液控制***有限公司 | 基于bp神经网络模型的液压支架电液自适应控制*** |
CN109113771B (zh) * | 2018-07-17 | 2020-06-16 | 北京天地玛珂电液控制***有限公司 | 基于bp神经网络模型的液压支架电液自适应控制*** |
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