DE335805C - Rock drill - Google Patents
Rock drillInfo
- Publication number
- DE335805C DE335805C DENDAT335805D DE335805DD DE335805C DE 335805 C DE335805 C DE 335805C DE NDAT335805 D DENDAT335805 D DE NDAT335805D DE 335805D D DE335805D D DE 335805DD DE 335805 C DE335805 C DE 335805C
- Authority
- DE
- Germany
- Prior art keywords
- rock drill
- metal parts
- soft metal
- drill
- rock
- 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.)
- Expired
Links
- 239000011435 rock Substances 0.000 title claims 3
- 239000002184 metal Substances 0.000 claims 3
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
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
-
- 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
- E21B10/56—Button-type inserts
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)
Description
Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE335805T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE335805C true DE335805C (en) | 1921-04-14 |
Family
ID=6219691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT335805D Expired DE335805C (en) | Rock drill |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE335805C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014007958A1 (en) * | 2014-06-04 | 2015-12-17 | Vittorio Pittana | Device and method for reducing the necessary drive power in core drilling |
-
0
- DE DENDAT335805D patent/DE335805C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014007958A1 (en) * | 2014-06-04 | 2015-12-17 | Vittorio Pittana | Device and method for reducing the necessary drive power in core drilling |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT279998B (en) | Process for manufacturing twist drills or similar tools as well as twist drills manufactured according to the process | |
DE387281C (en) | Method for producing shaft openings in mining | |
DE335805C (en) | Rock drill | |
DE600676C (en) | Coal and rock drill bits with two cutting edges at an unequal distance from the drill axis | |
DE587498C (en) | The base frame is cushioned by rubber buffers between metal plates | |
DE326679C (en) | Device for the production of opaque fog curtains according to | |
DE359355C (en) | Milling mandrel with right-hand and left-hand thread on which the right-hand and left-hand cutters are attached | |
DE554689C (en) | Grinding wheel | |
DE545847C (en) | Brush for cleaning beer glasses and the like like | |
DE544552C (en) | Silencer for internal combustion engines | |
DE514283C (en) | Core body for wreaths | |
DE366575C (en) | Plant pot | |
DE377460C (en) | Rock drill with breaking surfaces between the teeth | |
DE643635C (en) | Sieve bottom for the device for the uninterrupted dry extinguishing of lime o. | |
DE617495C (en) | Machine for covering potato plant furrows | |
DE534445C (en) | Ankle support | |
DE336953C (en) | Bar arrangement for windows | |
DE320306C (en) | piston | |
DE506875C (en) | Self-grabber | |
DE512437C (en) | Self-grabber | |
DE465752C (en) | Combined drop-fall area sprinkling for chimney coolers | |
DE846324C (en) | Rotary hoe or hand tiller | |
DE499007C (en) | Tapping head with conical guide mandrel | |
DE562458C (en) | Tube mill with fall-plate-like armor | |
DE605114C (en) | Segment grinding wheel for grinding the running surface of railway wheel rims |