FR1215639A - Device for adjusting the speed of advance of cutters or similar machines for mining operations - Google Patents

Device for adjusting the speed of advance of cutters or similar machines for mining operations

Info

Publication number
FR1215639A
FR1215639A FR774243A FR774243A FR1215639A FR 1215639 A FR1215639 A FR 1215639A FR 774243 A FR774243 A FR 774243A FR 774243 A FR774243 A FR 774243A FR 1215639 A FR1215639 A FR 1215639A
Authority
FR
France
Prior art keywords
cutters
advance
adjusting
speed
mining operations
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
FR774243A
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.)
Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
Original Assignee
Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
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 Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH filed Critical Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
Application granted granted Critical
Publication of FR1215639A publication Critical patent/FR1215639A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/04—Safety devices
    • E21C35/043—Protection against overload during transfer of machines for slitting or completely freeing the mineral from the seam

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)
FR774243A 1957-10-26 1958-09-11 Device for adjusting the speed of advance of cutters or similar machines for mining operations Expired FR1215639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1215639X 1957-10-26

Publications (1)

Publication Number Publication Date
FR1215639A true FR1215639A (en) 1960-04-20

Family

ID=7733538

Family Applications (1)

Application Number Title Priority Date Filing Date
FR774243A Expired FR1215639A (en) 1957-10-26 1958-09-11 Device for adjusting the speed of advance of cutters or similar machines for mining operations

Country Status (1)

Country Link
FR (1) FR1215639A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961561A (en) * 1971-11-08 1976-06-08 Applied Power Inc. Proportional force amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961561A (en) * 1971-11-08 1976-06-08 Applied Power Inc. Proportional force amplifier

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