GB261244A - Improvements in drilling tools - Google Patents

Improvements in drilling tools

Info

Publication number
GB261244A
GB261244A GB788326A GB788326A GB261244A GB 261244 A GB261244 A GB 261244A GB 788326 A GB788326 A GB 788326A GB 788326 A GB788326 A GB 788326A GB 261244 A GB261244 A GB 261244A
Authority
GB
United Kingdom
Prior art keywords
cutters
cutter
path
flushing medium
ducts
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
GB788326A
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.)
WILLIAM VALENTINE SEIFERT
Original Assignee
WILLIAM VALENTINE SEIFERT
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 WILLIAM VALENTINE SEIFERT filed Critical WILLIAM VALENTINE SEIFERT
Priority to GB788326A priority Critical patent/GB261244A/en
Publication of GB261244A publication Critical patent/GB261244A/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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/12—Roller bits with discs cutters

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

261,244. Haddan, A. J. H., (Seifert, W. V.). March 22, 1926. Borehole apparatus.-A drill for boring earth and rock has the cutters arranged to make annular cuts successively decreasing in diameter, the cutters being so recedingly stepped that each cutter removes the periphery of the core produced by the preceding cutter. As shown, an annular base member 7 is connected to a head 9 by an intermediate member which may be solid or formed of spaced legs 8 leaving apertures 10 for a flushing medium; the member 7 has lateral projections 32 to force loose hard material into the walls of the bore. One or more ducts 28 are formed in the member 7 and are each connected by a pipe 31 and branch ducts 29 to a duct 25 through which flushing medium is supplied. Rolling frusto-conical cutters 11 - - 23 are mounted on the member 7 and arms 8 so that the path of each cutter falls within the path of the next lower cutter. The cutters may be held within bushed apertures 41 by washers 44 and nuts 40, and may be arranged helically, or cutters making adjacent cuts may be diametrically opposed.
GB788326A 1926-03-22 1926-03-22 Improvements in drilling tools Expired GB261244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB788326A GB261244A (en) 1926-03-22 1926-03-22 Improvements in drilling tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB788326A GB261244A (en) 1926-03-22 1926-03-22 Improvements in drilling tools

Publications (1)

Publication Number Publication Date
GB261244A true GB261244A (en) 1926-11-18

Family

ID=9841612

Family Applications (1)

Application Number Title Priority Date Filing Date
GB788326A Expired GB261244A (en) 1926-03-22 1926-03-22 Improvements in drilling tools

Country Status (1)

Country Link
GB (1) GB261244A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112629918A (en) * 2020-12-29 2021-04-09 中国建筑材料工业地质勘查中心青海总队 Sampling device for geological prospecting and sampling method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112629918A (en) * 2020-12-29 2021-04-09 中国建筑材料工业地质勘查中心青海总队 Sampling device for geological prospecting and sampling method thereof
CN112629918B (en) * 2020-12-29 2023-10-20 中国建筑材料工业地质勘查中心青海总队 Sampling device for geological prospecting and sampling method thereof

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