FR1116820A - Improvements in processes and devices for the mechanical extraction of coal and other minerals - Google Patents

Improvements in processes and devices for the mechanical extraction of coal and other minerals

Info

Publication number
FR1116820A
FR1116820A FR1116820DA FR1116820A FR 1116820 A FR1116820 A FR 1116820A FR 1116820D A FR1116820D A FR 1116820DA FR 1116820 A FR1116820 A FR 1116820A
Authority
FR
France
Prior art keywords
minerals
coal
processes
devices
mechanical 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.)
BHS Bayerische Berg Hutten und Salzwerke AG
Original Assignee
BHS Bayerische Berg Hutten und Salzwerke AG
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 BHS Bayerische Berg Hutten und Salzwerke AG filed Critical BHS Bayerische Berg Hutten und Salzwerke AG
Application granted granted Critical
Publication of FR1116820A publication Critical patent/FR1116820A/en
Expired 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
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/34—Machine propelled along the working face by cable or chain
FR1116820D 1953-11-30 1954-11-25 Improvements in processes and devices for the mechanical extraction of coal and other minerals Expired FR1116820A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1116820X 1953-11-30

Publications (1)

Publication Number Publication Date
FR1116820A true FR1116820A (en) 1956-05-14

Family

ID=7724178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1116820D Expired FR1116820A (en) 1953-11-30 1954-11-25 Improvements in processes and devices for the mechanical extraction of coal and other minerals

Country Status (1)

Country Link
FR (1) FR1116820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357724A1 (en) * 1976-07-09 1978-02-03 Halbach & Braun EXTRACTION PLANT FOR BOTTOM OPERATIONS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357724A1 (en) * 1976-07-09 1978-02-03 Halbach & Braun EXTRACTION PLANT FOR BOTTOM OPERATIONS

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