NL243254A - - Google Patents
Info
- Publication number
- NL243254A NL243254A NL243254DA NL243254A NL 243254 A NL243254 A NL 243254A NL 243254D A NL243254D A NL 243254DA NL 243254 A NL243254 A NL 243254A
- Authority
- NL
- Netherlands
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)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Actuator (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH24729A DE1135399B (de) | 1958-09-13 | 1958-09-13 | Druckmittelbetriebenes Grubenausbauelement |
| DESCH26468A DE1138366B (de) | 1958-09-13 | 1959-08-01 | Ausziehbares, zweiteiliges Grubenausbau-element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL243254A true NL243254A (fi) |
Family
ID=25992755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL243254D NL243254A (fi) | 1958-09-13 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1138366B (fi) |
| FR (1) | FR1235039A (fi) |
| GB (1) | GB916936A (fi) |
| NL (1) | NL243254A (fi) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1554201B1 (de) * | 1965-02-25 | 1971-07-01 | Fichtel & Sachs Ag | Hydropneumatisches Hubaggregat,insbesondere zur stufenlosen Hoehenverstellung von Tischplatten und Stuehlen |
| DE1239648B (de) * | 1965-07-08 | 1967-05-03 | Hoesch Bergbautechnik G M B H | Hydraulischer Grubenstempel |
| CN102022128B (zh) * | 2011-01-06 | 2012-02-15 | 王洁 | 一种气液支柱 |
| CN103924991B (zh) * | 2014-03-07 | 2015-12-02 | 浙江衢州煤矿机械总厂股份有限公司 | 矿用内注式单体液压支柱 |
| CN108506030B (zh) * | 2018-02-23 | 2019-09-10 | 中国神华能源股份有限公司 | 一种液压支架及地下水库中的净化墙的布设方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1027615B (de) * | 1957-05-02 | 1958-04-10 | Karl Gerlach | Grubenstempel |
-
0
- NL NL243254D patent/NL243254A/xx unknown
-
1959
- 1959-08-01 DE DESCH26468A patent/DE1138366B/de active Pending
- 1959-09-10 FR FR804778A patent/FR1235039A/fr not_active Expired
- 1959-09-14 GB GB3116959A patent/GB916936A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB916936A (en) | 1963-01-30 |
| FR1235039A (fr) | 1960-07-01 |
| DE1138366B (de) | 1962-10-25 |