FR2276454B3 - - Google Patents

Info

Publication number
FR2276454B3
FR2276454B3 FR7520258A FR7520258A FR2276454B3 FR 2276454 B3 FR2276454 B3 FR 2276454B3 FR 7520258 A FR7520258 A FR 7520258A FR 7520258 A FR7520258 A FR 7520258A FR 2276454 B3 FR2276454 B3 FR 2276454B3
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
FR7520258A
Other languages
French (fr)
Other versions
FR2276454A1 (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.)
Hausherr & Soehne Maschf
Original Assignee
Hausherr & Soehne Maschf
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 Hausherr & Soehne Maschf filed Critical Hausherr & Soehne Maschf
Publication of FR2276454A1 publication Critical patent/FR2276454A1/en
Application granted granted Critical
Publication of FR2276454B3 publication Critical patent/FR2276454B3/fr
Granted legal-status Critical Current

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
    • E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
    • E21C27/12—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Rolling Contact Bearings (AREA)
FR7520258A 1974-06-29 1975-06-27 TOOL HOLDER FOR DRILLING MACHINE Granted FR2276454A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7422194 1974-06-29

Publications (2)

Publication Number Publication Date
FR2276454A1 FR2276454A1 (en) 1976-01-23
FR2276454B3 true FR2276454B3 (en) 1979-02-23

Family

ID=6645572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7520258A Granted FR2276454A1 (en) 1974-06-29 1975-06-27 TOOL HOLDER FOR DRILLING MACHINE

Country Status (2)

Country Link
FR (1) FR2276454A1 (en)
GB (1) GB1509387A (en)

Also Published As

Publication number Publication date
FR2276454A1 (en) 1976-01-23
GB1509387A (en) 1978-05-04

Similar Documents

Publication Publication Date Title
FR2296895B1 (en)
FR2286748B1 (en)
FR2268452A1 (en)
FR2258529B3 (en)
FR2273946B1 (en)
FR2269726A1 (en)
JPS50101523A (en)
JPS50104889U (en)
FR2276454B3 (en)
JPS50156039A (en)
JPS50142254U (en)
JPS50124429U (en)
JPS50116353A (en)
JPS50133636U (en)
JPS50135508A (en)
CH573799A5 (en)
CH564866A5 (en)
CH577406A5 (en)
CH577065B5 (en)
CH577643A5 (en)
CH576401A5 (en)
CH575766A5 (en)
CH577699B5 (en)
CH575455A5 (en)
CH577779A5 (en)