GB191005942A - An Improved Drill Head for Core Drills. - Google Patents

An Improved Drill Head for Core Drills.

Info

Publication number
GB191005942A
GB191005942A GB191005942DA GB191005942A GB 191005942 A GB191005942 A GB 191005942A GB 191005942D A GB191005942D A GB 191005942DA GB 191005942 A GB191005942 A GB 191005942A
Authority
GB
United Kingdom
Prior art keywords
core
drill head
improved drill
core drills
prevent
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
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.)
HEINRICH LAPP AG fur TIEFBOHR
Original Assignee
HEINRICH LAPP AG fur TIEFBOHR
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 HEINRICH LAPP AG fur TIEFBOHR filed Critical HEINRICH LAPP AG fur TIEFBOHR
Application granted granted Critical
Publication of GB191005942A publication Critical patent/GB191005942A/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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/10—Formed core retaining or severing means
    • E21B25/14—Formed core retaining or severing means mounted on pivot transverse to core axis

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)

Abstract

5942. Lapp Akt.-Ges. fiir Tiefbohrungen, H. Oct. 28, 1909, [Convention date]. Bore-hole apparatus.-To prevent the flushing- water from coming in contact with the core and injuring it, the non-rotating core tube b has a steel blade b', projecting in front of the diamond head a, which is pressed into the ground in advance of the diamond head due to the weight above it. Flaps c prevent the core from dropping back.
GB191005942D 1909-10-28 1910-03-09 An Improved Drill Head for Core Drills. Expired GB191005942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191005942X 1909-10-28

Publications (1)

Publication Number Publication Date
GB191005942A true GB191005942A (en) 1910-09-01

Family

ID=32521614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191005942D Expired GB191005942A (en) 1909-10-28 1910-03-09 An Improved Drill Head for Core Drills.

Country Status (1)

Country Link
GB (1) GB191005942A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543861A (en) * 1948-02-12 1951-03-06 Harry J Mader Plug insert bit for core drills

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543861A (en) * 1948-02-12 1951-03-06 Harry J Mader Plug insert bit for core drills

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