BE477454A - - Google Patents
Info
- Publication number
- BE477454A BE477454A BE477454DA BE477454A BE 477454 A BE477454 A BE 477454A BE 477454D A BE477454D A BE 477454DA BE 477454 A BE477454 A BE 477454A
- Authority
- BE
- Belgium
- Prior art keywords
- crown
- bit
- crowns
- cutting
- desc
- Prior art date
Links
- 239000011435 rock Substances 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 241000425571 Trepanes Species 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 101100511466 Caenorhabditis elegans lon-1 gene Proteins 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 241000731961 Juncaceae Species 0.000 description 1
- 241000735470 Juncus Species 0.000 description 1
- 241000238634 Libellulidae Species 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 210000004417 patella 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
- E21B10/36—Percussion drill bits
- E21B10/40—Percussion drill bits with leading portion
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 |
|---|---|
| BE477454A true BE477454A (de) |
Family
ID=125519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE477454D BE477454A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE477454A (de) |
-
0
- BE BE477454D patent/BE477454A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100534727C (zh) | 密封塞取出装置 | |
| DE10001841A1 (de) | Schneidwerkzeughalter mit einer ausgesparten Nut zur Entfernung des Scheidwerkzeugs | |
| US8069544B2 (en) | Device for extracting a quick-change tool holder | |
| EP1493897A3 (de) | Vorrichtung zum Richtungsbohren | |
| US2684839A (en) | Hand operated pick | |
| EP2674249A2 (de) | Entfernung von Befestigungen | |
| US4405005A (en) | Firewood splitter | |
| BE477454A (de) | ||
| US7131175B2 (en) | Extraction tool for extracting spiral threaded inserts and use of the extraction tool | |
| CN106592930A (zh) | 冲击式铲刀 | |
| US8281474B2 (en) | Tool and method of use for extraction of failed wheel bearings | |
| US5974917A (en) | MIG welding gun contact tip changing tool | |
| EP0384087B1 (de) | Niet und Werkzeug, um den Niet zu befestigen | |
| CN213890305U (zh) | 一种便于废料取出的飞机轮胎开孔器 | |
| US924378A (en) | Pipe-reamer. | |
| AU2008249198A1 (en) | Device for extracting a quick-change tool holder | |
| EP2392432B1 (de) | Meißelartiges Schlagwerkzeug | |
| US1268871A (en) | Chisel-handle. | |
| CH263563A (fr) | Trépan pour travaux de mines. | |
| KR102368410B1 (ko) | 드릴비트 분리용 공구 | |
| KR20120000727U (ko) | 치핑해머 | |
| FR2649029A1 (fr) | Procede de percage de trous carres et geometriques | |
| KR101389576B1 (ko) | 석공망치의 나무자루 고정쐐기 | |
| WO2021078747A1 (fr) | Outillage d'insertion par interférence dans une structure d'une fixation et méthode d'installation par interférence dans une structure d'une fixation au moyen d'un tel outillage | |
| CN110712174A (zh) | 一种活动式压力钳 |