DE268171C - - Google Patents
Info
- Publication number
- DE268171C DE268171C DENDAT268171D DE268171DA DE268171C DE 268171 C DE268171 C DE 268171C DE NDAT268171 D DENDAT268171 D DE NDAT268171D DE 268171D A DE268171D A DE 268171DA DE 268171 C DE268171 C DE 268171C
- Authority
- DE
- Germany
- Prior art keywords
- head
- displaced
- slots
- cutting edge
- cross
- 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
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000005553 drilling Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
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)
Description
Hierzu 1 Blatt Zeichnungen.
BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.
Claims (1)
- Patent-Anspruch:Bohrkopf für Gesteinbohrer mit auswechselbarer Einsatzschneide, dadurch gekennzeichnet, daß der Kopf (d) mit Schlitzen versehen ist, in denen ein im Querschnitt kreuzförmiger Einsatzstahl (e) mittels einer zentralen Schraube (h) verschoben werden kann.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE268171C true DE268171C (de) |
Family
ID=525165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT268171D Active DE268171C (de) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE268171C (de) |
-
0
- DE DENDAT268171D patent/DE268171C/de active Active
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