GB842706A - Improvements relating to boring apparatus for use in mines and quarries - Google Patents

Improvements relating to boring apparatus for use in mines and quarries

Info

Publication number
GB842706A
GB842706A GB22745/56A GB2274556A GB842706A GB 842706 A GB842706 A GB 842706A GB 22745/56 A GB22745/56 A GB 22745/56A GB 2274556 A GB2274556 A GB 2274556A GB 842706 A GB842706 A GB 842706A
Authority
GB
United Kingdom
Prior art keywords
boring apparatus
quarries
mines
bore
improvements relating
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
GB22745/56A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB842706A publication Critical patent/GB842706A/en
Expired legal-status Critical Current

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids

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)
  • Drilling And Boring (AREA)

Abstract

842,706. Earth-boring apparatus. MYARD, J. July 23, 1956 [July 23, 1955], No. 22745/56. Class 85. Boring apparatus for use in mines and quarries comprises a body 1 which is provided with retaining means 5 for a filter bag and is located in a bore by inverted tongues 3. The bore is sealed by a clamp 6 which is adjustably mounted on the member 1 and engages a rubber washer 8. The drilling tool 12 is bored at 15 for the passage of compressed air and is located in the member 1 by a ring 14 engaging rubber discs 13. In a modification, Figs. 3 and 4 (not shown), the member 1 is located in a bore disposed to one side of the aperture to be drilled and is held therein by two adjustable legs.
GB22745/56A 1955-07-23 1956-07-23 Improvements relating to boring apparatus for use in mines and quarries Expired GB842706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR842706X 1955-07-23

Publications (1)

Publication Number Publication Date
GB842706A true GB842706A (en) 1960-07-27

Family

ID=9311590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22745/56A Expired GB842706A (en) 1955-07-23 1956-07-23 Improvements relating to boring apparatus for use in mines and quarries

Country Status (1)

Country Link
GB (1) GB842706A (en)

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