BE374713A - - Google Patents
Info
- Publication number
- BE374713A BE374713A BE374713DA BE374713A BE 374713 A BE374713 A BE 374713A BE 374713D A BE374713D A BE 374713DA BE 374713 A BE374713 A BE 374713A
- 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
- E21B19/081—Screw-and-nut feed mechanisms
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)
- Drilling And Boring (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US355587XA | 1930-01-30 | 1930-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE374713A true BE374713A (fi) |
Family
ID=21883438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE374713D BE374713A (fi) | 1930-01-30 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE374713A (fi) |
| DE (1) | DE559509C (fi) |
| FR (1) | FR704831A (fi) |
| GB (1) | GB355587A (fi) |
-
0
- BE BE374713D patent/BE374713A/xx unknown
-
1930
- 1930-10-31 GB GB32835/30A patent/GB355587A/en not_active Expired
- 1930-10-31 FR FR704831D patent/FR704831A/fr not_active Expired
- 1930-11-06 DE DE1930559509D patent/DE559509C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE559509C (de) | 1932-09-21 |
| FR704831A (fr) | 1931-05-27 |
| GB355587A (en) | 1931-08-27 |