FR56970E - Combination router - Google Patents
Combination routerInfo
- Publication number
- FR56970E FR56970E FR56970DA FR56970E FR 56970 E FR56970 E FR 56970E FR 56970D A FR56970D A FR 56970DA FR 56970 E FR56970 E FR 56970E
- Authority
- FR
- France
- Prior art keywords
- combination router
- router
- combination
- 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
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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/081—Screw-and-nut feed mechanisms
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/001—Drilling a non circular hole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/52—Machines incorporating two or more of the slitting means according to groups E21C25/02, E21C25/06, E21C25/16, E21C25/20 and E21C25/22
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR851486X | 1947-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR56970E true FR56970E (en) | 1952-10-10 |
Family
ID=9323611
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR949150D Expired FR949150A (en) | 1947-07-01 | 1947-07-01 | Combination router |
FR56970D Expired FR56970E (en) | 1947-07-01 | 1947-12-30 | Combination router |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR949150D Expired FR949150A (en) | 1947-07-01 | 1947-07-01 | Combination router |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE422748A (en) |
DE (1) | DE851486C (en) |
FR (2) | FR949150A (en) |
LU (1) | LU29081A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2624079A1 (en) * | 1975-05-29 | 1976-12-09 | Gustaf Haakan Oskar Wibom | METHOD FOR FORMING HOLES WITH SELECTED EXTERNAL SHAPE IN ROCK OR FLOOR AND DRILLING MACHINE TO PERFORM THE METHOD |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1075070B (en) * | 1960-02-11 | Gebr. Eickhoff Maschinenfabrik u. Eisengießerei m.b.H., Bochum | Extraction machine with several gear-driven, axially parallel cutting rollers | |
US5570934A (en) * | 1995-03-16 | 1996-11-05 | Hydro-Quebec | Traction boring device using multiple trepans for producing large cuts in concrete works and the like and method of producing cuts |
CN102691500A (en) * | 2011-03-19 | 2012-09-26 | 刘素华 | Sawing-impacting coal cutter |
DE102011087096B4 (en) * | 2011-11-25 | 2014-12-11 | Pierre-Yves Mutel | Tool and method for creating boreholes with a non-rotationally symmetrical cross section |
CN110242293A (en) * | 2019-06-21 | 2019-09-17 | 辽宁工程技术大学 | A kind of rotary digging formula Coal cutter |
-
0
- BE BE422748D patent/BE422748A/xx unknown
- LU LU29081D patent/LU29081A1/xx unknown
-
1947
- 1947-07-01 FR FR949150D patent/FR949150A/en not_active Expired
- 1947-12-30 FR FR56970D patent/FR56970E/en not_active Expired
-
1950
- 1950-10-03 DE DES20363A patent/DE851486C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2624079A1 (en) * | 1975-05-29 | 1976-12-09 | Gustaf Haakan Oskar Wibom | METHOD FOR FORMING HOLES WITH SELECTED EXTERNAL SHAPE IN ROCK OR FLOOR AND DRILLING MACHINE TO PERFORM THE METHOD |
Also Published As
Publication number | Publication date |
---|---|
LU29081A1 (en) | |
DE851486C (en) | 1952-10-06 |
BE422748A (en) | |
FR949150A (en) | 1949-08-22 |
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