DE139549C - - Google Patents
Info
- Publication number
- DE139549C DE139549C DENDAT139549D DE139549DA DE139549C DE 139549 C DE139549 C DE 139549C DE NDAT139549 D DENDAT139549 D DE NDAT139549D DE 139549D A DE139549D A DE 139549DA DE 139549 C DE139549 C DE 139549C
- Authority
- DE
- Germany
- Prior art keywords
- grooves
- knives
- cutter head
- wedge
- base
- 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
- 230000000630 rising effect Effects 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
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)
- Knives (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE139549C true DE139549C (cs) |
Family
ID=407286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT139549D Active DE139549C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE139549C (cs) |
-
0
- DE DENDAT139549D patent/DE139549C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE549025C (de) | Sicherheitsrasierhobel | |
| DE3002138A1 (de) | Saegekette fuer kettensaegen, insbesondere motorkettensaegen | |
| DE492674C (de) | Schraemkette | |
| DE139549C (cs) | ||
| DE633270C (de) | Spaltkeil mit Querverzahnung | |
| DE628595C (de) | Formfraeser fuer teils parallelwandige und teils pilzfoermige Nuten | |
| DE214733C (cs) | ||
| DE626057C (de) | Schraempicke mit eingesetztem Hartmetallschneidentraeger | |
| DE143972C (cs) | ||
| DE907404C (de) | Kettenschraemmaschine | |
| DE183159C (cs) | ||
| DE42731C (de) | Kehlhobel mit verstellbaren Messern | |
| DE272243C (cs) | ||
| DE620950C (de) | Zusammengesetzte Flachfeile mit runden, auswechselbaren Filenkoerpern | |
| DE121606C (cs) | ||
| DE331657C (de) | Schere, insbesondere fuer Walzeisen, mit Zahnradantrieb der Backen | |
| DE21536C (de) | Maschine zum Abschneiden und Biegen von Kettengliedern im kalten Zustande | |
| DE93808C (cs) | ||
| AT234615B (de) | Greifbacke für Greifwerkzeuge, insbesondere Rohrzangen | |
| DE277413C (cs) | ||
| DE120759C (cs) | ||
| DE127798C (cs) | ||
| DE66861C (de) | Vorrichtung für Bandsägen zur Ermöglichung von Bohr-, Fräs-, Nuth-, Spund-, Kreissäge- und dergl. Arbeiten | |
| AT256429B (de) | Sägekette | |
| DE874966C (de) | Bodenbearbeitungsgeraet mit in einem Rahmengestell gelagerter Walze |