GB662362A - Improvements in or relating to drills and bits therefor - Google Patents

Improvements in or relating to drills and bits therefor

Info

Publication number
GB662362A
GB662362A GB885449A GB885449A GB662362A GB 662362 A GB662362 A GB 662362A GB 885449 A GB885449 A GB 885449A GB 885449 A GB885449 A GB 885449A GB 662362 A GB662362 A GB 662362A
Authority
GB
United Kingdom
Prior art keywords
drills
axis
relating
drill
tips
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
GB885449A
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.)
Gullick Ltd
Original Assignee
Gullick Ltd
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 Gullick Ltd filed Critical Gullick Ltd
Priority to GB885449A priority Critical patent/GB662362A/en
Publication of GB662362A publication Critical patent/GB662362A/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
    • E21B10/02—Core bits

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)
  • Mechanical Control Devices (AREA)

Abstract

662,362. Drills. GULLICK, Ltd., and SEAMAN, T. April 1, 1949, No. 885'4/49. Addition to 625,362. Class 83 (iii). The drill of the parent Specification is modified by locating at least one of the cutting tips 14 closer to the axis XX of the drill than the other 13, or others. The tips 13, 14 and spacing pieces 18 are secured in the head 10 in a socket 16 which is disposed eccentrically in relation to the axis X-X. An abutment 20 may be provided to locate the tip 14 which may have its inner edge 19 extended to or beyond the axis X-X so as to remove the core C.
GB885449A 1949-04-01 1949-04-01 Improvements in or relating to drills and bits therefor Expired GB662362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB885449A GB662362A (en) 1949-04-01 1949-04-01 Improvements in or relating to drills and bits therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB885449A GB662362A (en) 1949-04-01 1949-04-01 Improvements in or relating to drills and bits therefor

Publications (1)

Publication Number Publication Date
GB662362A true GB662362A (en) 1951-12-05

Family

ID=9860525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB885449A Expired GB662362A (en) 1949-04-01 1949-04-01 Improvements in or relating to drills and bits therefor

Country Status (1)

Country Link
GB (1) GB662362A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196277A (en) * 1986-09-16 1988-04-27 Glasdon Ltd Cutter for cutting flat bottomed hole in road

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196277A (en) * 1986-09-16 1988-04-27 Glasdon Ltd Cutter for cutting flat bottomed hole in road
GB2196277B (en) * 1986-09-16 1990-04-25 Glasdon Ltd Cutting tool

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