GB797549A - Improvements in or relating to cutting machines for mines - Google Patents

Improvements in or relating to cutting machines for mines

Info

Publication number
GB797549A
GB797549A GB25713/55A GB2571355A GB797549A GB 797549 A GB797549 A GB 797549A GB 25713/55 A GB25713/55 A GB 25713/55A GB 2571355 A GB2571355 A GB 2571355A GB 797549 A GB797549 A GB 797549A
Authority
GB
United Kingdom
Prior art keywords
cutter
machine
secured
boom
axle
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
GB25713/55A
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
Publication of GB797549A publication Critical patent/GB797549A/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
    • E21C27/24—Mineral freed by means not involving slitting by milling means acting on the full working face, i.e. the rotary axis of the tool carrier being substantially parallel to the working face

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)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

797,549. Mineral - mining machines. GEB. EICKHOFF, MASCHINENFABRIK UND EISENGIESSEREI. Sept. 8, 1955 [Sept. 11, 1954], No. 25713/55. Class 68(1) The cutter means of a mineral-mining machine are mounted ahead of the machine on a support 4, 17 secured to and projecting forward from a structure 3 which houses a power unit for driving the cutter means and which is so pivotally mounted on a carriage 1 about an axis 2 extending transversely of the direction of advance of the machine that the structure may be swung by means, e.g. jacks 8, 9, acting between the structure and the carriage to cause the cutter means to excavate a space into which the machine may be advanced. A shaft driven from the power unit and disposed within the boom 4 drives through bevel gearing a shaft projecting from the boom and carrying sprockets 5, 6. The sprockets 5, 6 drive cutter chains that circulate about sprockets secured to an axle of a drum cutter 7, the axle being rotatably mounted in the spaced arms of the extension 7 secured to the boom 4. An extension cutter or cutters may be detachably secured to one or both ends of the axle.
GB25713/55A 1954-09-11 1955-09-08 Improvements in or relating to cutting machines for mines Expired GB797549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE797549X 1954-09-11

Publications (1)

Publication Number Publication Date
GB797549A true GB797549A (en) 1958-07-02

Family

ID=6711192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25713/55A Expired GB797549A (en) 1954-09-11 1955-09-08 Improvements in or relating to cutting machines for mines

Country Status (1)

Country Link
GB (1) GB797549A (en)

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