FR2016891A6 - - Google Patents
Info
- Publication number
- FR2016891A6 FR2016891A6 FR6926570A FR6926570A FR2016891A6 FR 2016891 A6 FR2016891 A6 FR 2016891A6 FR 6926570 A FR6926570 A FR 6926570A FR 6926570 A FR6926570 A FR 6926570A FR 2016891 A6 FR2016891 A6 FR 2016891A6
- Authority
- FR
- France
- 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
- E21D23/04—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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bathtub Accessories (AREA)
- Lining And Supports For Tunnels (AREA)
- Tents Or Canopies (AREA)
- Pivots And Pivotal Connections (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681758794 DE1758794A1 (en) | 1968-08-08 | 1968-08-08 | Longwall construction team for a hiking expansion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2016891A6 true FR2016891A6 (en) | 1970-05-15 |
Family
ID=5695227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6926570A Expired FR2016891A6 (en) | 1968-08-08 | 1969-08-01 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3563040A (en) |
| JP (1) | JPS495085B1 (en) |
| DE (1) | DE1758794A1 (en) |
| FR (1) | FR2016891A6 (en) |
| GB (1) | GB1237803A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946371B (en) * | 2020-09-03 | 2022-03-11 | 迁安市凯达工贸有限责任公司 | Support system for roof of mining of roof bolter |
-
1968
- 1968-08-08 DE DE19681758794 patent/DE1758794A1/en active Pending
-
1969
- 1969-08-01 FR FR6926570A patent/FR2016891A6/fr not_active Expired
- 1969-08-05 US US847584A patent/US3563040A/en not_active Expired - Lifetime
- 1969-08-08 JP JP44062835A patent/JPS495085B1/ja active Pending
- 1969-08-08 GB GB39844/69A patent/GB1237803A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS495085B1 (en) | 1974-02-05 |
| DE1758794A1 (en) | 1971-02-11 |
| US3563040A (en) | 1971-02-16 |
| GB1237803A (en) | 1971-06-30 |