GB845322A - Improvements in machines for cutting coal and like minerals - Google Patents

Improvements in machines for cutting coal and like minerals

Info

Publication number
GB845322A
GB845322A GB36593/57A GB3659357A GB845322A GB 845322 A GB845322 A GB 845322A GB 36593/57 A GB36593/57 A GB 36593/57A GB 3659357 A GB3659357 A GB 3659357A GB 845322 A GB845322 A GB 845322A
Authority
GB
United Kingdom
Prior art keywords
drum
holder
pin
pinion
nov
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
GB36593/57A
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 GB845322A publication Critical patent/GB845322A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C25/00Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate

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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

845,322. Mining machines. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GEB. Nov. 25, 1957 [Nov. 28, 1956; Jan. 5, 1957], No. 36593/57. Class 68(1). A drum type cutting machine in which the drum 5 is rotatable in opposite directions and is provided with cutting tools 13, having oppositely directed edges 18 and 19, the tools being arranged to pivot with respect to the drum 5 through limited paths. A pick 13 is mounted in a holder 11 secured to a pin 10 and has a tail 12 engaged in a notch 9 in the external surface of an internally toothed gear ring 7, which is coaxial with and free to rotate relative to the drum 5. The ring is driven by a pinion 8 and when the direction of rotation of the pinion is reversed, the holder 11 pivots in the rectangular opening 17 until its movement is stopped by one of the edges 20 and the whole drum then begins to rotate. Tugs 14 on the tool-holder close the appropriate part of the opening 17 to prevent cut material entering the mechanism. In the example shown each pick is mounted in a separate holder keyed to the pin 10, only one holder being driven from the gear ring 7. In a modification the picks are mounted in a single holder of suitable length which is free to pivot on the pin 10, which is fixed in the walls of the drum.
GB36593/57A 1956-11-28 1957-11-25 Improvements in machines for cutting coal and like minerals Expired GB845322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE845322X 1956-11-28

Publications (1)

Publication Number Publication Date
GB845322A true GB845322A (en) 1960-08-17

Family

ID=6774770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36593/57A Expired GB845322A (en) 1956-11-28 1957-11-25 Improvements in machines for cutting coal and like minerals

Country Status (3)

Country Link
BE (1) BE562037A (en)
FR (1) FR1184796A (en)
GB (1) GB845322A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012051803A1 (en) * 2010-10-23 2012-04-26 Li Shiqing Composite rotary-cutting mining machine
CN103233731A (en) * 2013-04-15 2013-08-07 中国神华能源股份有限公司 Coal cutting method with multiple demonstration knifes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012051803A1 (en) * 2010-10-23 2012-04-26 Li Shiqing Composite rotary-cutting mining machine
CN103233731A (en) * 2013-04-15 2013-08-07 中国神华能源股份有限公司 Coal cutting method with multiple demonstration knifes
CN103233731B (en) * 2013-04-15 2015-04-22 中国神华能源股份有限公司 Coal cutting method with multiple demonstration knifes

Also Published As

Publication number Publication date
FR1184796A (en) 1959-07-24
BE562037A (en)

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