ZA737797B - Raise boring head and rolling cutter arrangement therefor - Google Patents

Raise boring head and rolling cutter arrangement therefor

Info

Publication number
ZA737797B
ZA737797B ZA737797*A ZA737797A ZA737797B ZA 737797 B ZA737797 B ZA 737797B ZA 737797 A ZA737797 A ZA 737797A ZA 737797 B ZA737797 B ZA 737797B
Authority
ZA
South Africa
Prior art keywords
boring head
rolling cutter
cutter arrangement
raise boring
arrangement therefor
Prior art date
Application number
ZA737797*A
Inventor
R Goodfellow
Original Assignee
Kennametal Inc
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 Kennametal Inc filed Critical Kennametal Inc
Publication of ZA737797B publication Critical patent/ZA737797B/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • 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
    • E21B10/10—Roller bits with roller axle supported at both ends
    • 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)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
ZA737797*A 1972-10-17 1973-10-05 Raise boring head and rolling cutter arrangement therefor ZA737797B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US300353A US3921734A (en) 1972-10-17 1972-10-17 Raise boring head and rolling cutter arrangement therefor

Publications (1)

Publication Number Publication Date
ZA737797B true ZA737797B (en) 1974-08-28

Family

ID=23158746

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA737797*A ZA737797B (en) 1972-10-17 1973-10-05 Raise boring head and rolling cutter arrangement therefor

Country Status (5)

Country Link
US (1) US3921734A (en)
JP (1) JPS5611838B2 (en)
CA (1) CA1010019A (en)
GB (2) GB1421259A (en)
ZA (1) ZA737797B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049067A (en) * 1975-11-05 1977-09-20 Ingersoll-Rand Company Cutter mounting extension apparatus
US4142593A (en) * 1977-10-25 1979-03-06 Smith International, Inc. Raise drill inner yoke bridge
US4241799A (en) * 1979-10-17 1980-12-30 Hughes Tool Company Protected cutter mounting for drill bits
US4630693A (en) * 1985-04-15 1986-12-23 Goodfellow Robert D Rotary cutter assembly
US4760890A (en) * 1987-05-18 1988-08-02 Tamrock Inc. Cutter assembly for rotary boring of earth
ZA200203609B (en) * 2001-05-08 2002-12-12 Smith International Mounting attachment and bearing system for an industrial earth-boring cutter.
US9279232B2 (en) * 2012-10-12 2016-03-08 Caterpillar Inc. Front head nut pocket configuration for hydraulic hammer
US8973909B2 (en) 2013-08-01 2015-03-10 Hendrickson Usa, L.L.C. Cross arm bushing assembly useful for vehicle suspension
JP6603594B2 (en) * 2016-02-12 2019-11-06 シャープ株式会社 Audio signal transmitting apparatus, audio signal transmitting method, control program, and computer-readable recording medium
CN106440548A (en) * 2016-11-11 2017-02-22 珠海格力电器股份有限公司 Liquid separation head and air conditioner
USD934056S1 (en) * 2017-11-21 2021-10-26 Iron Grip Holdings Pty Limited Stabilisation ring segment for an underground reamer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695771A (en) * 1951-05-04 1954-11-30 Grant Oil Tool Company Tool for removing material from well bore walls
US3385385A (en) * 1966-04-01 1968-05-28 Reed Roller Bit Co Drill bit
US3461983A (en) * 1967-06-28 1969-08-19 Dresser Ind Cutting tool having hard insert in hole surrounded by hard facing
US3601207A (en) * 1969-05-19 1971-08-24 Lawrence Mfg Co Cutter assembly
US3638740A (en) * 1970-03-30 1972-02-01 Murphy Ind Inc G W Raise drilling bit
US3705635A (en) * 1971-01-13 1972-12-12 Dresser Ind Large diameter earth boring bit
ZA714204B (en) * 1971-06-28 1972-03-29 Mcdonnell P Ltd Improvements in or relating to rotary cutters
US3749188A (en) * 1971-08-20 1973-07-31 G W Murphy Indu Inc Drill bit
JPS5017001A (en) * 1973-06-12 1975-02-22

Also Published As

Publication number Publication date
US3921734A (en) 1975-11-25
GB1421260A (en) 1976-01-14
AU6125973A (en) 1975-04-17
GB1421259A (en) 1976-01-14
JPS4974101A (en) 1974-07-17
CA1010019A (en) 1977-05-10
JPS5611838B2 (en) 1981-03-17
USB300353I5 (en) 1975-01-28

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