GB285076A - Improvements in or relating to rock drills - Google Patents

Improvements in or relating to rock drills

Info

Publication number
GB285076A
GB285076A GB2740/28A GB274028A GB285076A GB 285076 A GB285076 A GB 285076A GB 2740/28 A GB2740/28 A GB 2740/28A GB 274028 A GB274028 A GB 274028A GB 285076 A GB285076 A GB 285076A
Authority
GB
United Kingdom
Prior art keywords
relating
water
rock drills
leading
valve
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
GB2740/28A
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.)
FLOTTMANN AG
Original Assignee
FLOTTMANN 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 FLOTTMANN AG filed Critical FLOTTMANN AG
Publication of GB285076A publication Critical patent/GB285076A/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
    • E21B21/02—Swivel joints in hose-lines

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

285,076. Flottmann Akt.-Ges. Feb. 11, 1927, [Convention date]. Percussive drills.-The drill shank is packed by cup leathers g<1> or rubber rings h<1>, to which water is supplied by passages q, r leading from the clearing-water inlet i. A valve l, adjustable by means of a screw t, is inserted in the passage leading to the central bore p<2>. A separate regulating valve on the water pipe may be used also.
GB2740/28A 1927-02-11 1928-01-27 Improvements in or relating to rock drills Expired GB285076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE285076X 1927-02-11

Publications (1)

Publication Number Publication Date
GB285076A true GB285076A (en) 1928-07-12

Family

ID=6055403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2740/28A Expired GB285076A (en) 1927-02-11 1928-01-27 Improvements in or relating to rock drills

Country Status (1)

Country Link
GB (1) GB285076A (en)

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