FR981860A - Method and apparatus for continuous coal mining - Google Patents

Method and apparatus for continuous coal mining

Info

Publication number
FR981860A
FR981860A FR981860DA FR981860A FR 981860 A FR981860 A FR 981860A FR 981860D A FR981860D A FR 981860DA FR 981860 A FR981860 A FR 981860A
Authority
FR
France
Prior art keywords
coal mining
continuous coal
continuous
mining
coal
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.)
SUNNYHILL COAL Co
Original Assignee
SUNNYHILL COAL Co
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 SUNNYHILL COAL Co filed Critical SUNNYHILL COAL Co
Application granted granted Critical
Publication of FR981860A publication Critical patent/FR981860A/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
    • E21C27/22—Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills, i.e. the rotary axis of the tool carrier being substantially perpendicular to the working face, e.g. MARIETTA-type

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)
FR981860D 1948-03-02 1949-02-28 Method and apparatus for continuous coal mining Expired FR981860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US981860XA 1948-03-02 1948-03-02

Publications (1)

Publication Number Publication Date
FR981860A true FR981860A (en) 1951-05-30

Family

ID=22267844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR981860D Expired FR981860A (en) 1948-03-02 1949-02-28 Method and apparatus for continuous coal mining

Country Status (1)

Country Link
FR (1) FR981860A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734732A (en) * 1956-02-14 tracy
US2745649A (en) * 1953-03-27 1956-05-15 Goodman Mfg Co Mining machine with adjustably mounted rotary cutting head
US2776123A (en) * 1952-10-23 1957-01-01 Colmol Company Boring type mining head having eccentric wedge
US2826402A (en) * 1953-05-11 1958-03-11 Union Carbide Corp Remotely controlled mining system
DE1026714B (en) * 1953-12-07 1958-03-27 Karl Balthasar Dipl Ing Device for the fully mechanical extraction of a floez, which has grown together with the lying and hanging adjacent rock, in longwall mining
DE1031748B (en) * 1952-08-30 1958-06-12 Union Carbide Corp Extraction drilling machine that can be moved on caterpillar chains with a tiltable drill head
DE1031747B (en) * 1952-08-09 1958-06-12 Union Carbide Corp Process for the extraction of coal and other minerals and extraction drilling machines therefor
DE1168847B (en) * 1956-09-05 1964-04-30 Bade & Co Gmbh Tunneling machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734732A (en) * 1956-02-14 tracy
DE1031747B (en) * 1952-08-09 1958-06-12 Union Carbide Corp Process for the extraction of coal and other minerals and extraction drilling machines therefor
DE1031748B (en) * 1952-08-30 1958-06-12 Union Carbide Corp Extraction drilling machine that can be moved on caterpillar chains with a tiltable drill head
US2776123A (en) * 1952-10-23 1957-01-01 Colmol Company Boring type mining head having eccentric wedge
US2745649A (en) * 1953-03-27 1956-05-15 Goodman Mfg Co Mining machine with adjustably mounted rotary cutting head
US2826402A (en) * 1953-05-11 1958-03-11 Union Carbide Corp Remotely controlled mining system
DE1026714B (en) * 1953-12-07 1958-03-27 Karl Balthasar Dipl Ing Device for the fully mechanical extraction of a floez, which has grown together with the lying and hanging adjacent rock, in longwall mining
DE1168847B (en) * 1956-09-05 1964-04-30 Bade & Co Gmbh Tunneling machine

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