BE375294A - - Google Patents
Info
- Publication number
- BE375294A BE375294A BE375294DA BE375294A BE 375294 A BE375294 A BE 375294A BE 375294D A BE375294D A BE 375294DA BE 375294 A BE375294 A BE 375294A
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Hydraulic Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US427517A US1788034A (en) | 1930-02-11 | 1930-02-11 | Feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE375294A true BE375294A (fi) |
Family
ID=23695204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE375294D BE375294A (fi) | 1930-02-11 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1788034A (fi) |
| BE (1) | BE375294A (fi) |
| DE (1) | DE551087C (fi) |
| FR (1) | FR706623A (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2443814A (en) * | 1942-06-08 | 1948-06-22 | Joy Mfg Co | Forging apparatus |
| US2693733A (en) * | 1950-02-09 | 1954-11-09 | Joy Mfg Co | Power hammer for mechanical tamping |
-
0
- BE BE375294D patent/BE375294A/xx unknown
-
1930
- 1930-02-11 US US427517A patent/US1788034A/en not_active Expired - Lifetime
- 1930-11-26 DE DE1930551087D patent/DE551087C/de not_active Expired
- 1930-11-27 FR FR706623D patent/FR706623A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1788034A (en) | 1931-01-06 |
| FR706623A (fr) | 1931-06-27 |
| DE551087C (de) | 1932-05-27 |