SE7700818L - DEVICE FOR EARTH DRILLING MACHINE - Google Patents

DEVICE FOR EARTH DRILLING MACHINE

Info

Publication number
SE7700818L
SE7700818L SE7700818A SE7700818A SE7700818L SE 7700818 L SE7700818 L SE 7700818L SE 7700818 A SE7700818 A SE 7700818A SE 7700818 A SE7700818 A SE 7700818A SE 7700818 L SE7700818 L SE 7700818L
Authority
SE
Sweden
Prior art keywords
gage
earth boring
boring apparatus
insert
asymmetric
Prior art date
Application number
SE7700818A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
Jr J W Langford
W S Keller
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of SE7700818L publication Critical patent/SE7700818L/en

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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts

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)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

ASYMMETRIC GAGE INSERT FOR AN EARTH BORING APPARATUS An asymmetric gage row insert provides a larger amount of wall contacting surface thereby decreasing the wear on the gage insert and increasing the ability of the earth boring apparatus to maintain a full gage hole. The insert has a shape prior to assembly onto the earth boring apparatus that includes a base integrally joined to an asymmetric head. The base is mounted in a socket in the earth boring apparatus. The head projects from the earth boring apparatus and includes an extended gage cutting surface. The gage cutting surface is the largest plane surface on the head. The gage cutting surface contacts the wall of the hole with the majority of the length of its extended surface and with the same angle as the gage angle of the bit. -1a-
SE7700818A 1976-03-29 1977-01-26 DEVICE FOR EARTH DRILLING MACHINE SE7700818L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67153576A 1976-03-29 1976-03-29

Publications (1)

Publication Number Publication Date
SE7700818L true SE7700818L (en) 1977-09-30

Family

ID=24694909

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7700818A SE7700818L (en) 1976-03-29 1977-01-26 DEVICE FOR EARTH DRILLING MACHINE

Country Status (8)

Country Link
BR (1) BR7700922A (en)
CA (1) CA1071184A (en)
DE (1) DE2706908A1 (en)
FR (1) FR2354441A1 (en)
GB (1) GB1556513A (en)
IT (1) IT1066629B (en)
PL (1) PL113302B1 (en)
SE (1) SE7700818L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8307010L (en) * 1983-12-19 1985-06-20 Santrade Ltd PIPE FOR SHIPPING DRILLING AND DRILLING THEREOF
CA1308400C (en) * 1986-10-29 1992-10-06 Camille A. Ajus Method and device for constructing sleeves
SE507098C2 (en) * 1994-10-12 1998-03-30 Sandvik Ab Carbide pin and rock drill bit for striking drilling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE211516C1 (en) * 1962-03-15 1967-03-14
US3442342A (en) * 1967-07-06 1969-05-06 Hughes Tool Co Specially shaped inserts for compact rock bits,and rolling cutters and rock bits using such inserts
US3522852A (en) * 1967-08-18 1970-08-04 Trident Ind Inc Expandable drill bit and reamer construction
US3495668A (en) * 1968-07-05 1970-02-17 Murphy Ind Inc G W Drill bit
US3734213A (en) * 1971-02-02 1973-05-22 Kennametal Inc Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines

Also Published As

Publication number Publication date
IT1066629B (en) 1985-03-12
FR2354441B1 (en) 1983-05-27
BR7700922A (en) 1977-10-18
PL113302B1 (en) 1980-12-31
FR2354441A1 (en) 1978-01-06
GB1556513A (en) 1979-11-28
DE2706908A1 (en) 1977-10-13
CA1071184A (en) 1980-02-05

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