GB226924A - Improvements in or relating to fluid pressure operated percussive drills - Google Patents

Improvements in or relating to fluid pressure operated percussive drills

Info

Publication number
GB226924A
GB226924A GB28514/23A GB2851423A GB226924A GB 226924 A GB226924 A GB 226924A GB 28514/23 A GB28514/23 A GB 28514/23A GB 2851423 A GB2851423 A GB 2851423A GB 226924 A GB226924 A GB 226924A
Authority
GB
United Kingdom
Prior art keywords
bore
piston
relating
cylinder
fluid pressure
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
GB28514/23A
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.)
ALFRED SGONINA
BRITISH FLOTTMANN DRILL COMPAN
Original Assignee
ALFRED SGONINA
BRITISH FLOTTMANN DRILL COMPAN
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 ALFRED SGONINA, BRITISH FLOTTMANN DRILL COMPAN filed Critical ALFRED SGONINA
Priority to GB28514/23A priority Critical patent/GB226924A/en
Publication of GB226924A publication Critical patent/GB226924A/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)
  • Percussive Tools And Related Accessories (AREA)

Abstract

226,924. British Flottmann Drill Co., Ltd., and Sgonina, A. Nov. 12, 1923. Percussive tools.-For clearing the bore hole made by a rock drill or like tool, exhaust fluid is caused to pass indirectly from the outer end of the cylinder to an axial bore in the piston. For this purpose the bore b in the. piston registers with the clearing passage in the tool and slides on a tube b<1> provided with ports c<1> which are uncovered by the piston at the same time as the main exhaust ports f. In a modified arrangement the bore b terminates in a cross bore which communicates with recesses in the cylinder wall. By lengthening these recesses, exhaust from the inner end of the cylinder may be used as well.
GB28514/23A 1923-11-12 1923-11-12 Improvements in or relating to fluid pressure operated percussive drills Expired GB226924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28514/23A GB226924A (en) 1923-11-12 1923-11-12 Improvements in or relating to fluid pressure operated percussive drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28514/23A GB226924A (en) 1923-11-12 1923-11-12 Improvements in or relating to fluid pressure operated percussive drills

Publications (1)

Publication Number Publication Date
GB226924A true GB226924A (en) 1925-01-08

Family

ID=10276838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28514/23A Expired GB226924A (en) 1923-11-12 1923-11-12 Improvements in or relating to fluid pressure operated percussive drills

Country Status (1)

Country Link
GB (1) GB226924A (en)

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