AU463518B2 - Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines - Google Patents

Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines

Info

Publication number
AU463518B2
AU463518B2 AU41273/72A AU4127372A AU463518B2 AU 463518 B2 AU463518 B2 AU 463518B2 AU 41273/72 A AU41273/72 A AU 41273/72A AU 4127372 A AU4127372 A AU 4127372A AU 463518 B2 AU463518 B2 AU 463518B2
Authority
AU
Australia
Prior art keywords
boring
excavation
rotary cutter
raise
machines
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
AU41273/72A
Other versions
AU4127372A (en
Inventor
D. Goodfellow Robert
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.)
Kennametal Inc
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
Priority to AU41273/72A priority Critical patent/AU463518B2/en
Publication of AU4127372A publication Critical patent/AU4127372A/en
Application granted granted Critical
Publication of AU463518B2 publication Critical patent/AU463518B2/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
    • E21B10/46—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)
AU41273/72A 1972-04-18 1972-04-18 Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines Expired AU463518B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU41273/72A AU463518B2 (en) 1972-04-18 1972-04-18 Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU41273/72A AU463518B2 (en) 1972-04-18 1972-04-18 Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines

Publications (2)

Publication Number Publication Date
AU4127372A AU4127372A (en) 1973-10-25
AU463518B2 true AU463518B2 (en) 1975-07-31

Family

ID=3728660

Family Applications (1)

Application Number Title Priority Date Filing Date
AU41273/72A Expired AU463518B2 (en) 1972-04-18 1972-04-18 Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines

Country Status (1)

Country Link
AU (1) AU463518B2 (en)

Also Published As

Publication number Publication date
AU4127372A (en) 1973-10-25

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