FR876793A - Improvements to portable mechanical perforators used for example in mines - Google Patents
Improvements to portable mechanical perforators used for example in minesInfo
- Publication number
- FR876793A FR876793A FR876793DA FR876793A FR 876793 A FR876793 A FR 876793A FR 876793D A FR876793D A FR 876793DA FR 876793 A FR876793 A FR 876793A
- Authority
- FR
- France
- Prior art keywords
- mines
- portable mechanical
- mechanical perforators
- perforators used
- portable
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
- B25H1/0057—Devices for securing hand tools to the work
-
- 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
- E21B19/084—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 with flexible drawing means, e.g. cables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling And Boring (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2289739A GB533294A (en) | 1939-08-08 | 1939-08-08 | Improvements in and relating to portable mechanically operated drills for use in mines and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
FR876793A true FR876793A (en) | 1942-11-17 |
Family
ID=10186822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR876793D Expired FR876793A (en) | 1939-08-08 | 1940-12-30 | Improvements to portable mechanical perforators used for example in mines |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR876793A (en) |
GB (1) | GB533294A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4261673A (en) * | 1979-04-05 | 1981-04-14 | Hougen Everett D | Magnetic base drill |
PL131597U1 (en) * | 2018-12-27 | 2024-02-12 | Politechnika Śląska | Trailer for driving a mining hand drill |
CN109898986B (en) * | 2019-03-26 | 2020-10-02 | 平庆义 | Mechanical equipment for mine hole drilling |
CN114215493B (en) * | 2021-12-15 | 2023-11-07 | 青岛新胜石油机械有限公司 | Single-machine double-well oil pumping mechanism |
-
1939
- 1939-08-08 GB GB2289739A patent/GB533294A/en not_active Expired
-
1940
- 1940-12-30 FR FR876793D patent/FR876793A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB533294A (en) | 1941-02-11 |
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