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ZA796174B - Tools for cutting heads - Google Patents

Tools for cutting heads

Info

Publication number
ZA796174B
ZA796174B ZA00796174A ZA796174A ZA796174B ZA 796174 B ZA796174 B ZA 796174B ZA 00796174 A ZA00796174 A ZA 00796174A ZA 796174 A ZA796174 A ZA 796174A ZA 796174 B ZA796174 B ZA 796174B
Authority
ZA
South Africa
Prior art keywords
tools
cutting heads
heads
cutting
Prior art date
Application number
ZA00796174A
Inventor
S Howe
Original Assignee
Hall & Pickles 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 Hall & Pickles Ltd filed Critical Hall & Pickles Ltd
Publication of ZA796174B publication Critical patent/ZA796174B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • 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
    • E21B10/12—Roller bits with discs cutters
    • 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
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • E21C35/1837—Mining picks; Holders therefor with inserts or layers of wear-resisting material characterised by the shape
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/104—Cutting tool fixtures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
ZA00796174A 1978-11-25 1979-11-16 Tools for cutting heads ZA796174B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7846070 1978-11-25

Publications (1)

Publication Number Publication Date
ZA796174B true ZA796174B (en) 1980-11-26

Family

ID=10501327

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00796174A ZA796174B (en) 1978-11-25 1979-11-16 Tools for cutting heads

Country Status (4)

Country Link
AU (1) AU5301379A (en)
DE (1) DE2946893A1 (en)
FR (1) FR2468721A1 (en)
ZA (1) ZA796174B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016125917A1 (en) * 2016-12-30 2018-07-05 Wirtgen Gmbh Tool replacement holder
DE102016125921A1 (en) 2016-12-30 2018-07-05 Wirtgen Gmbh Tool combination with a chisel holder and two chisels

Also Published As

Publication number Publication date
FR2468721A1 (en) 1981-05-08
DE2946893A1 (en) 1980-06-04
AU5301379A (en) 1980-05-29

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