NL6609824A - - Google Patents
Info
- Publication number
- NL6609824A NL6609824A NL6609824A NL6609824A NL6609824A NL 6609824 A NL6609824 A NL 6609824A NL 6609824 A NL6609824 A NL 6609824A NL 6609824 A NL6609824 A NL 6609824A NL 6609824 A NL6609824 A NL 6609824A
- Authority
- NL
- Netherlands
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
- E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/517—Extension elements
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/52—Extensible units located above or below standard props
- E21D15/526—Extensible units located above or below standard props for step-by-step extension of the prop
-
- 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
- E21D23/049—Connecting devices between the head or foot of a prop and the cap or base of the roof support
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)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Catching Or Destruction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1965K0051733 DE1923414U (de) | 1965-07-16 | 1965-07-16 | Hydraulische grubenausbaurahmen. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6609824A true NL6609824A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-01-17 |
Family
ID=7226103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6609824A NL6609824A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-07-16 | 1966-07-13 |
Country Status (3)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353720B (zh) * | 2022-03-21 | 2022-06-17 | 太原向明智控科技有限公司 | 一种基于拉线位移传感器的液压支架采高测量装置及方法 |
-
1965
- 1965-07-16 DE DE1965K0051733 patent/DE1923414U/de not_active Expired
-
1966
- 1966-07-13 NL NL6609824A patent/NL6609824A/xx unknown
- 1966-07-14 BE BE684146D patent/BE684146A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE684146A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1966-12-16 |
| DE1923414U (de) | 1965-09-16 |