ZA708723B - Improvements in or relating to mining - Google Patents

Improvements in or relating to mining

Info

Publication number
ZA708723B
ZA708723B ZA708723A ZA708723A ZA708723B ZA 708723 B ZA708723 B ZA 708723B ZA 708723 A ZA708723 A ZA 708723A ZA 708723 A ZA708723 A ZA 708723A ZA 708723 B ZA708723 B ZA 708723B
Authority
ZA
South Africa
Prior art keywords
mining
relating
Prior art date
Application number
ZA708723A
Inventor
A Hilton
Original Assignee
Mining Dev Ag
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 Mining Dev Ag filed Critical Mining Dev Ag
Publication of ZA708723B publication Critical patent/ZA708723B/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
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/58—Chisel-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Artificial Fish Reefs (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
ZA708723A 1969-12-30 1970-12-29 Improvements in or relating to mining ZA708723B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6323769 1969-12-30

Publications (1)

Publication Number Publication Date
ZA708723B true ZA708723B (en) 1971-10-27

Family

ID=10488888

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA708723A ZA708723B (en) 1969-12-30 1970-12-29 Improvements in or relating to mining

Country Status (5)

Country Link
US (1) US3758160A (en)
CA (1) CA929539A (en)
CH (1) CH517892A (en)
GB (1) GB1344820A (en)
ZA (1) ZA708723B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA752609B (en) * 1975-04-23 1976-08-25 Atlas Copco Ab Improvements in or relating to methods of and apparatus for winning reef
DE2713781C3 (en) * 1977-03-29 1983-02-24 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Process and device for the combined hydraulic-mechanical underground extraction of mainly hard mineral raw materials
WO2020172736A1 (en) * 2019-02-26 2020-09-03 Novamera Inc. Method and system for mining

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US486101A (en) * 1892-11-15 Rock drilling and splitting
US1631693A (en) * 1927-06-07 Broaching tool
US395105A (en) * 1888-12-25 Rock-drilling tool
US740906A (en) * 1902-07-22 1903-10-06 David Awst Owen Rock-drill attachment.
US923513A (en) * 1908-05-05 1909-06-01 Martin Hardsocg Drill.
US2390562A (en) * 1944-01-03 1945-12-11 Kindred L Storrs Method of mining coal
US3167354A (en) * 1962-08-24 1965-01-26 Ingersoll Rand Co Drilling method for mining thin ore bodies

Also Published As

Publication number Publication date
CH517892A (en) 1972-01-15
US3758160A (en) 1973-09-11
GB1344820A (en) 1974-01-23
CA929539A (en) 1973-07-03

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