FR2354854B3 - - Google Patents

Info

Publication number
FR2354854B3
FR2354854B3 FR7718633A FR7718633A FR2354854B3 FR 2354854 B3 FR2354854 B3 FR 2354854B3 FR 7718633 A FR7718633 A FR 7718633A FR 7718633 A FR7718633 A FR 7718633A FR 2354854 B3 FR2354854 B3 FR 2354854B3
Authority
FR
France
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
FR7718633A
Other languages
French (fr)
Other versions
FR2354854A1 (en
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.)
Gullick Dobson Ltd
Original Assignee
Gullick Dobson 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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Publication of FR2354854A1 publication Critical patent/FR2354854A1/en
Application granted granted Critical
Publication of FR2354854B3 publication Critical patent/FR2354854B3/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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)
FR7718633A 1976-06-19 1977-06-17 PERCUSSION TOOL FOR MINE EXPLOITATION Granted FR2354854A1 (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 (2)

Publication Number Publication Date
FR2354854A1 FR2354854A1 (en) 1978-01-13
FR2354854B3 true FR2354854B3 (en) 1980-04-04

Family

ID=10229410

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718633A Granted FR2354854A1 (en) 1976-06-19 1977-06-17 PERCUSSION TOOL FOR MINE EXPLOITATION

Country Status (6)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI66460C (en) * 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
JPS52156102A (en) 1977-12-26
AU2615277A (en) 1978-12-21
GB1585117A (en) 1981-02-25
ZA773618B (en) 1979-04-25
DE2727334A1 (en) 1977-12-22
FR2354854A1 (en) 1978-01-13

Similar Documents

Publication Publication Date Title
IN145409B (en)
JPS5611867B2 (en)
FR2352153B1 (en)
FR2372460B1 (en)
FR2354854B3 (en)
JPS5325639U (en)
JPS5543332B2 (en)
FI53405B (en)
JPS52146918U (en)
CS177750B1 (en)
JPS51163982U (en)
JPS52133948U (en)
CS177445B1 (en)
JPS52144391U (en)
CS175512B1 (en)
JPS5318507U (en)
JPS52168908U (en)
JPS52168488U (en)
BG23263A1 (en)
DD125729A2 (en)
BG36544A1 (en)
CH604053A5 (en)
BG23222A1 (en)
BG23051A1 (en)
BG22976A1 (en)

Legal Events

Date Code Title Description
ST Notification of lapse