BE429829A - - Google Patents
Info
- Publication number
- BE429829A BE429829A BE429829DA BE429829A BE 429829 A BE429829 A BE 429829A BE 429829D A BE429829D A BE 429829DA BE 429829 A BE429829 A BE 429829A
- Authority
- BE
- Belgium
Links
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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
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)
- Earth Drilling (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77153A US2132519A (en) | 1936-04-30 | 1936-04-30 | Feeding device |
| FR842285T | 1938-08-18 | ||
| BE429829T | 1938-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE429829A true BE429829A (en:Method) | 1938-09-30 |
Family
ID=22136375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE429829D BE429829A (en:Method) | 1936-04-30 | 1938-08-22 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2132519A (en:Method) |
| BE (1) | BE429829A (en:Method) |
| FR (1) | FR842285A (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3085638A (en) * | 1953-10-23 | 1963-04-16 | Atlas Copco Ab | Rock drilling mechanisms |
| US3193055A (en) * | 1962-01-16 | 1965-07-06 | Lawrence J Morin | Safety brake combination for pneumatic drills |
| US3149541A (en) * | 1963-07-12 | 1964-09-22 | K & H Equipment Ltd | Hydraulically controlled air leg structure |
-
1936
- 1936-04-30 US US77153A patent/US2132519A/en not_active Expired - Lifetime
-
1938
- 1938-08-18 FR FR842285D patent/FR842285A/fr not_active Expired
- 1938-08-22 BE BE429829D patent/BE429829A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR842285A (fr) | 1939-06-08 |
| US2132519A (en) | 1938-10-11 |