FR876793A - Improvements to portable mechanical perforators used for example in mines - Google Patents

Improvements to portable mechanical perforators used for example in mines

Info

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
Application number
Other languages
French (fr)
Inventor
Harold Thomas Lamb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRITISH ENGINES Ltd
Original Assignee
BRITISH ENGINES Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BRITISH ENGINES Ltd filed Critical BRITISH ENGINES Ltd
Application granted granted Critical
Publication of FR876793A publication Critical patent/FR876793A/en
Expired legal-status Critical Current

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)
FR876793D 1939-08-08 1940-12-30 Improvements to portable mechanical perforators used for example in mines Expired FR876793A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GB533294A (en) 1941-02-11

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