FR591212A - Perfectionnements apportés aux haveuses - Google Patents

Perfectionnements apportés aux haveuses

Info

Publication number
FR591212A
FR591212A FR591212DA FR591212A FR 591212 A FR591212 A FR 591212A FR 591212D A FR591212D A FR 591212DA FR 591212 A FR591212 A FR 591212A
Authority
FR
France
Prior art keywords
shearers
improvements made
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
English (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.)
Sullivan Machinery Co
Original Assignee
Sullivan Machinery 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 Sullivan Machinery Co filed Critical Sullivan Machinery Co
Application granted granted Critical
Publication of FR591212A publication Critical patent/FR591212A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
    • E21C29/06—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains anchored at one or both ends to the mine working face
    • E21C29/10—Cable or chain co-operating with a winch or the like on the machine

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)
FR591212D 1924-06-12 1924-12-29 Perfectionnements apportés aux haveuses Expired FR591212A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US591212XA 1924-06-12 1924-06-12

Publications (1)

Publication Number Publication Date
FR591212A true FR591212A (fr) 1925-06-30

Family

ID=22020989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR591212D Expired FR591212A (fr) 1924-06-12 1924-12-29 Perfectionnements apportés aux haveuses

Country Status (1)

Country Link
FR (1) FR591212A (fr)

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