FR1447719A - Attelage de soutènement hydraulique marchant - Google Patents
Attelage de soutènement hydraulique marchantInfo
- Publication number
- FR1447719A FR1447719A FR32363A FR32363A FR1447719A FR 1447719 A FR1447719 A FR 1447719A FR 32363 A FR32363 A FR 32363A FR 32363 A FR32363 A FR 32363A FR 1447719 A FR1447719 A FR 1447719A
- Authority
- FR
- France
- Prior art keywords
- walk
- hydraulic support
- behind hydraulic
- support hitch
- hitch
- 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
- E21D23/12—Control, e.g. using remote control
- E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
-
- 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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
-
- 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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
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)
- Architecture (AREA)
- Structural Engineering (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR32363A FR1447719A (fr) | 1965-09-23 | 1965-09-23 | Attelage de soutènement hydraulique marchant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR32363A FR1447719A (fr) | 1965-09-23 | 1965-09-23 | Attelage de soutènement hydraulique marchant |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1447719A true FR1447719A (fr) | 1966-07-29 |
Family
ID=8588895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR32363A Expired FR1447719A (fr) | 1965-09-23 | 1965-09-23 | Attelage de soutènement hydraulique marchant |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1447719A (fr) |
-
1965
- 1965-09-23 FR FR32363A patent/FR1447719A/fr not_active Expired
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