FR1192585A - étançon hydraulique à piston plongeur - Google Patents
étançon hydraulique à piston plongeurInfo
- Publication number
- FR1192585A FR1192585A FR1192585DA FR1192585A FR 1192585 A FR1192585 A FR 1192585A FR 1192585D A FR1192585D A FR 1192585DA FR 1192585 A FR1192585 A FR 1192585A
- Authority
- FR
- France
- Prior art keywords
- prop
- hydraulic plunger
- plunger
- hydraulic
- plunger prop
- 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
- E21D15/58—Devices for setting props or chocks
- E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
- E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded
-
- 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
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 |
|---|---|---|---|
| FR1192585T | 1958-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1192585A true FR1192585A (fr) | 1959-10-27 |
Family
ID=9667448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1192585D Expired FR1192585A (fr) | 1958-02-28 | 1958-02-28 | étançon hydraulique à piston plongeur |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1192585A (fr) |
-
1958
- 1958-02-28 FR FR1192585D patent/FR1192585A/fr not_active Expired
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