ZA773618B - Percussive tools,particularly for mining - Google Patents

Percussive tools,particularly for mining

Info

Publication number
ZA773618B
ZA773618B ZA00773618A ZA773618A ZA773618B ZA 773618 B ZA773618 B ZA 773618B ZA 00773618 A ZA00773618 A ZA 00773618A ZA 773618 A ZA773618 A ZA 773618A ZA 773618 B ZA773618 B ZA 773618B
Authority
ZA
South Africa
Prior art keywords
mining
percussive tools
percussive
tools
Prior art date
Application number
ZA00773618A
Other languages
English (en)
Inventor
R Phillips
A Thompson
T Hamilton
Original Assignee
Chamber Of Mines Services 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 Chamber Of Mines Services Ltd filed Critical Chamber Of Mines Services Ltd
Publication of ZA773618B publication Critical patent/ZA773618B/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/28—Mineral freed by means not involving slitting by percussive drills with breaking-down means, e.g. wedge-shaped tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Percussive Tools And Related Accessories (AREA)
ZA00773618A 1976-06-19 1977-06-16 Percussive tools,particularly for mining ZA773618B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25544/76A GB1585117A (en) 1976-06-19 1976-06-19 Percussive tools particularly casing constructions thereof

Publications (1)

Publication Number Publication Date
ZA773618B true ZA773618B (en) 1979-04-25

Family

ID=10229410

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00773618A ZA773618B (en) 1976-06-19 1977-06-16 Percussive tools,particularly for mining

Country Status (6)

Country Link
JP (1) JPS52156102A (xx)
AU (1) AU2615277A (xx)
DE (1) DE2727334A1 (xx)
FR (1) FR2354854A1 (xx)
GB (1) GB1585117A (xx)
ZA (1) ZA773618B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI66460C (fi) * 1982-10-08 1984-10-10 Tampella Oy Ab Tryckmediedriven slagapparat
TWM268150U (en) * 2004-08-17 2005-06-21 Guo-Rung Liu Impact cylinder for reciprocal type pneumatic tool

Also Published As

Publication number Publication date
FR2354854A1 (fr) 1978-01-13
FR2354854B3 (xx) 1980-04-04
JPS52156102A (en) 1977-12-26
DE2727334A1 (de) 1977-12-22
AU2615277A (en) 1978-12-21
GB1585117A (en) 1981-02-25

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