FR901915A - Device for the extraction of coals and other minerals - Google Patents

Device for the extraction of coals and other minerals

Info

Publication number
FR901915A
FR901915A FR901915DA FR901915A FR 901915 A FR901915 A FR 901915A FR 901915D A FR901915D A FR 901915DA FR 901915 A FR901915 A FR 901915A
Authority
FR
France
Prior art keywords
coals
minerals
extraction
Prior art date
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
Other languages
French (fr)
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.)
Rudolf Hausherr & Sohne Maschf
Original Assignee
Rudolf Hausherr & Sohne 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 Rudolf Hausherr & Sohne Maschf filed Critical Rudolf Hausherr & Sohne Maschf
Application granted granted Critical
Publication of FR901915A publication Critical patent/FR901915A/en
Expired 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
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/46—Mineral freed by means not involving slitting by percussed planing means

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)
FR901915D 1943-01-28 1944-02-11 Device for the extraction of coals and other minerals Expired FR901915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE901915X 1943-01-28

Publications (1)

Publication Number Publication Date
FR901915A true FR901915A (en) 1945-08-09

Family

ID=6860885

Family Applications (1)

Application Number Title Priority Date Filing Date
FR901915D Expired FR901915A (en) 1943-01-28 1944-02-11 Device for the extraction of coals and other minerals

Country Status (1)

Country Link
FR (1) FR901915A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610841A (en) * 1950-07-07 1952-09-16 Jeffrey Mfg Co Plow type of coal mining machine
US2610840A (en) * 1947-07-10 1952-09-16 Mavor & Coulson Ltd Machine for mining coal
US2699930A (en) * 1949-10-24 1955-01-18 Lobbe Armin Coal planing machine head and cutter arrangement thereon
DE971211C (en) * 1948-02-12 1958-12-24 Huwood Mining Machinery Ltd Coal plow with striking and cutting tools arranged one above the other in a row, moving back and forth
DE972813C (en) * 1948-02-12 1960-10-13 Huwood Mining Machinery Ltd Method and device for extracting coal or the like with an activated coal plow

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610840A (en) * 1947-07-10 1952-09-16 Mavor & Coulson Ltd Machine for mining coal
DE971211C (en) * 1948-02-12 1958-12-24 Huwood Mining Machinery Ltd Coal plow with striking and cutting tools arranged one above the other in a row, moving back and forth
DE972813C (en) * 1948-02-12 1960-10-13 Huwood Mining Machinery Ltd Method and device for extracting coal or the like with an activated coal plow
US2699930A (en) * 1949-10-24 1955-01-18 Lobbe Armin Coal planing machine head and cutter arrangement thereon
US2610841A (en) * 1950-07-07 1952-09-16 Jeffrey Mfg Co Plow type of coal mining machine

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