GB135199A - Improvements in and relating to expansion drills for boring earth and other material - Google Patents

Improvements in and relating to expansion drills for boring earth and other material

Info

Publication number
GB135199A
GB135199A GB2809119A GB2809119A GB135199A GB 135199 A GB135199 A GB 135199A GB 2809119 A GB2809119 A GB 2809119A GB 2809119 A GB2809119 A GB 2809119A GB 135199 A GB135199 A GB 135199A
Authority
GB
United Kingdom
Prior art keywords
cutters
mandrel
bore
jaws
drill
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
GB2809119A
Other languages
English (en)
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.)
Stickney Charles Lewis
Original Assignee
Stickney Charles Lewis
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 Stickney Charles Lewis filed Critical Stickney Charles Lewis
Publication of GB135199A publication Critical patent/GB135199A/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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools

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)
  • Drilling Tools (AREA)
GB2809119A 1918-11-12 1919-11-12 Improvements in and relating to expansion drills for boring earth and other material Expired GB135199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US505941XA 1918-11-12 1918-11-12

Publications (1)

Publication Number Publication Date
GB135199A true GB135199A (en) 1921-01-13

Family

ID=21966164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2809119A Expired GB135199A (en) 1918-11-12 1919-11-12 Improvements in and relating to expansion drills for boring earth and other material

Country Status (2)

Country Link
FR (1) FR505941A (fr)
GB (1) GB135199A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4006298A1 (fr) * 2020-11-27 2022-06-01 Zipp Industries GmbH & Co. KG Dispositif de forage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT354960B (de) * 1978-04-06 1980-02-11 Panzer Ferdinand Bohrkrone fuer die herstellung von bohrungen in erdreich oder gestein

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4006298A1 (fr) * 2020-11-27 2022-06-01 Zipp Industries GmbH & Co. KG Dispositif de forage

Also Published As

Publication number Publication date
FR505941A (fr) 1920-08-10

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