DE118176C - - Google Patents
Info
- Publication number
- DE118176C DE118176C DENDAT118176D DE118176DA DE118176C DE 118176 C DE118176 C DE 118176C DE NDAT118176 D DENDAT118176 D DE NDAT118176D DE 118176D A DE118176D A DE 118176DA DE 118176 C DE118176 C DE 118176C
- Authority
- DE
- Germany
- Prior art keywords
- jaws
- chisel
- drill bit
- cutting
- grooves
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 4
- 238000009966 trimming Methods 0.000 description 4
- 210000003128 head Anatomy 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 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
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE118176C true DE118176C (es) |
Family
ID=387389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT118176D Active DE118176C (es) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE118176C (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921696A1 (de) * | 1977-05-26 | 1980-12-11 | Schaefers Geb Meyer Hanna | Bohrwerkzeug |
-
0
- DE DENDAT118176D patent/DE118176C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921696A1 (de) * | 1977-05-26 | 1980-12-11 | Schaefers Geb Meyer Hanna | Bohrwerkzeug |
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