ZA732944B - Improvements relating to rock drills - Google Patents

Improvements relating to rock drills

Info

Publication number
ZA732944B
ZA732944B ZA00732944A ZA732944A ZA732944B ZA 732944 B ZA732944 B ZA 732944B ZA 00732944 A ZA00732944 A ZA 00732944A ZA 732944 A ZA732944 A ZA 732944A ZA 732944 B ZA732944 B ZA 732944B
Authority
ZA
South Africa
Prior art keywords
improvements relating
rock drills
drills
rock
relating
Prior art date
Application number
ZA00732944A
Inventor
W Mayall
Original Assignee
W Mayall
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 W Mayall filed Critical W Mayall
Publication of ZA732944B publication Critical patent/ZA732944B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C2/00—Rotary-piston engines
    • F03C2/30—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F03C2/304—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movements defined in sub-group F03C2/08 or F03C2/22 and relative reciprocation between members
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/006—Mechanical motion converting means, e.g. reduction gearings
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
ZA00732944A 1972-05-09 1973-05-01 Improvements relating to rock drills ZA732944B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2164172 1972-05-09

Publications (1)

Publication Number Publication Date
ZA732944B true ZA732944B (en) 1975-06-25

Family

ID=10166353

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00732944A ZA732944B (en) 1972-05-09 1973-05-01 Improvements relating to rock drills

Country Status (8)

Country Link
JP (1) JPS4961003A (en)
AU (1) AU5520373A (en)
BE (1) BE799279A (en)
DE (1) DE2323472A1 (en)
FR (1) FR2184342A5 (en)
IT (1) IT984931B (en)
NL (1) NL7306392A (en)
ZA (1) ZA732944B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009510A1 (en) * 1989-02-09 1990-08-23 John Richard Neville Roe Positive displacement wing motor
US5460496A (en) * 1991-10-18 1995-10-24 John R. N. Roe Wing motor having non-radial roller slats
CN105840412B (en) * 2016-05-23 2017-11-10 王向军 A kind of cam follower hydraulic motor of abdominal cavity with oil
CN110206523B (en) * 2019-05-31 2023-12-05 西安交通大学 Deep and shallow groove reversing mechanism, energy collecting rod pusher and shock wave generator

Also Published As

Publication number Publication date
DE2323472A1 (en) 1973-11-29
IT984931B (en) 1974-11-20
BE799279A (en) 1973-11-09
AU5520373A (en) 1974-11-07
JPS4961003A (en) 1974-06-13
NL7306392A (en) 1973-11-13
FR2184342A5 (en) 1973-12-21

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