FR1122176A - Hydraulic control device for driving deep probes - Google Patents
Hydraulic control device for driving deep probesInfo
- Publication number
- FR1122176A FR1122176A FR1122176DA FR1122176A FR 1122176 A FR1122176 A FR 1122176A FR 1122176D A FR1122176D A FR 1122176DA FR 1122176 A FR1122176 A FR 1122176A
- Authority
- FR
- France
- Prior art keywords
- control device
- hydraulic control
- driving deep
- probes
- deep probes
- 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
- 239000000523 sample Substances 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
- E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
- E21B1/04—Devices for reversing the movement of the rod or cable at the surface
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1122176T | 1955-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1122176A true FR1122176A (en) | 1956-09-03 |
Family
ID=9632455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1122176D Expired FR1122176A (en) | 1955-03-23 | 1955-03-23 | Hydraulic control device for driving deep probes |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1122176A (en) |
-
1955
- 1955-03-23 FR FR1122176D patent/FR1122176A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR1153152A (en) | Inductive control device for servo-mechanism | |
| FR1095353A (en) | Ultrasonic soundings recording device for metal parts | |
| FR1158074A (en) | Thermostat control device | |
| FR1166103A (en) | Electro-hydraulic control device for motorized valves | |
| FR1122176A (en) | Hydraulic control device for driving deep probes | |
| FR1090670A (en) | Fluid servo control device | |
| AT199896B (en) | Device for adding up pulses | |
| FR1120102A (en) | Eccentricity control device | |
| FR1161188A (en) | Pre-selective electro-pneumatic device with special precession for controlling gear changes | |
| FR1129492A (en) | Hydraulic control device for tractor | |
| FR1128125A (en) | Control device | |
| FR1163945A (en) | Flow control device | |
| FR1153500A (en) | Compensated control device | |
| FR1142740A (en) | Vehicle hydraulic braking control device | |
| FR1054617A (en) | Winch control device | |
| FR1156989A (en) | Device for selecting pulses | |
| FR1182338A (en) | Level control device for pneumatically suspended vehicles | |
| FR1153174A (en) | Hydraulic control device | |
| FR1121172A (en) | Control device for electriomagnetic clutches | |
| CH349429A (en) | Potentiometric device | |
| FR1112531A (en) | Control device for electromagnetic hammers | |
| FR1099077A (en) | Servo control device | |
| FR80001E (en) | Electro-hydraulic control device for motorized valves | |
| FR1151504A (en) | Thermostatic control device | |
| FR1154204A (en) | Thermostatic control device |