GB928736A - An improved reciprocating rock drill - Google Patents

An improved reciprocating rock drill

Info

Publication number
GB928736A
GB928736A GB2037/60A GB203760A GB928736A GB 928736 A GB928736 A GB 928736A GB 2037/60 A GB2037/60 A GB 2037/60A GB 203760 A GB203760 A GB 203760A GB 928736 A GB928736 A GB 928736A
Authority
GB
United Kingdom
Prior art keywords
water
piston
tube
pressure
steel
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
GB2037/60A
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.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co AG
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 Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Publication of GB928736A publication Critical patent/GB928736A/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
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes

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)

Abstract

928,736. Percussive tools. BOHLER & CO. A.G. GEB. Jan. 20, 1960 [Jan. 28, 1959], No. 2037/60. Class 124. A percussive drill comprises a drill piston, and a water duct extending from the back-head, through the piston, to a duct in the steel shank, the end of the tube in the back-head being connected to a piston defining a pressure chamber on the side remote from the drill piston in which water pressure urges the other end of the tube into contact with the steel shank. As shown, water under pressure enters a chamber formed above a piston 5 which is connected to a tube 6 extending through the tool and ending in a flexible portion 14, the end of which enters the water duct in a steel 10. The pressure of water on the piston 5 maintains the end of the tube 14 in water-tight connection with the steel, but, if desired, a spring 9 may be inserted in the chamber to augment the water pressure.
GB2037/60A 1959-01-28 1960-01-20 An improved reciprocating rock drill Expired GB928736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT61259A AT233499B (en) 1959-01-28 1959-01-28 Flushing arrangement for rock drills

Publications (1)

Publication Number Publication Date
GB928736A true GB928736A (en) 1963-06-12

Family

ID=3495199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2037/60A Expired GB928736A (en) 1959-01-28 1960-01-20 An improved reciprocating rock drill

Country Status (3)

Country Link
AT (1) AT233499B (en)
FR (1) FR1245994A (en)
GB (1) GB928736A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1232090B (en) * 1961-02-27 1967-01-12 Ingersoll Rand Co Hammer drill
FR2316431A1 (en) * 1975-07-04 1977-01-28 Montabert Roger IMPROVEMENT IN DRILLING HAMMERS

Also Published As

Publication number Publication date
FR1245994A (en) 1960-11-10
AT233499B (en) 1964-05-11

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