FR1175285A - étançon de mine - Google Patents
étançon de mineInfo
- Publication number
- FR1175285A FR1175285A FR1175285DA FR1175285A FR 1175285 A FR1175285 A FR 1175285A FR 1175285D A FR1175285D A FR 1175285DA FR 1175285 A FR1175285 A FR 1175285A
- Authority
- FR
- France
- Prior art keywords
- mine prop
- prop
- mine
- 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
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1175285X | 1956-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1175285A true FR1175285A (fr) | 1959-03-23 |
Family
ID=7729692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1175285D Expired FR1175285A (fr) | 1956-05-30 | 1957-05-16 | étançon de mine |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1175285A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4236850A (en) * | 1977-12-24 | 1980-12-02 | Thyssen Industrie Ag | Shield timbering frame for timbering mines |
-
1957
- 1957-05-16 FR FR1175285D patent/FR1175285A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4236850A (en) * | 1977-12-24 | 1980-12-02 | Thyssen Industrie Ag | Shield timbering frame for timbering mines |
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