BE667424A - - Google Patents
Info
- Publication number
- BE667424A BE667424A BE667424DA BE667424A BE 667424 A BE667424 A BE 667424A BE 667424D A BE667424D A BE 667424DA BE 667424 A BE667424 A BE 667424A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
- E21F13/086—Armoured conveyors shifting devices
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
- Fluid-Damping Devices (AREA)
- Actuator (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK53583A DE1288545B (de) | 1964-07-28 | 1964-07-28 | Rueckzylinder mit einem beiderseits von einem Arbeitsmedium beaufschlagbaren Kolben |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE667424A true BE667424A (xx) | 1965-11-16 |
Family
ID=7226775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE667424D BE667424A (xx) | 1964-07-28 | 1965-07-26 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE667424A (xx) |
| DE (1) | DE1288545B (xx) |
| GB (1) | GB1078834A (xx) |
| NL (1) | NL6509389A (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217502B (zh) * | 2021-06-01 | 2022-03-22 | 中国矿业大学(北京) | 伪三轴保压加载装置的活塞杆保压推送装置 |
| CN113680425B (zh) * | 2021-09-14 | 2023-01-20 | 洛阳大华智能科技有限公司 | 一种液压锁紧式圆锥破碎机及锁紧方法 |
| CN114215821B (zh) * | 2021-12-30 | 2024-06-25 | 徐州徐工液压件有限公司 | 一种内置油路支腿液压缸 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE918204C (de) * | 1952-04-30 | 1954-09-20 | Fritz Bothe | Rueckvorrichtung, insbesondere zum Verlegen von Strebfoerderern |
| DE1864707U (de) * | 1962-01-26 | 1963-01-03 | Glueck Auf Guenther Klerner Ma | Abaenderbares, doppeltwirkendes, hydraulisches vorrueckzylinderaggregat, insbesondere fuer strebfoerderer im bergbau. |
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1964
- 1964-07-28 DE DEK53583A patent/DE1288545B/de active Pending
-
1965
- 1965-07-20 NL NL6509389A patent/NL6509389A/xx unknown
- 1965-07-26 BE BE667424D patent/BE667424A/xx unknown
- 1965-07-27 GB GB3195365A patent/GB1078834A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1288545B (de) | 1969-02-06 |
| NL6509389A (xx) | 1966-01-31 |
| GB1078834A (en) | 1967-08-09 |