GB337281A - Improvements in and relating to mining machines - Google Patents

Improvements in and relating to mining machines

Info

Publication number
GB337281A
GB337281A GB2399129A GB2399129A GB337281A GB 337281 A GB337281 A GB 337281A GB 2399129 A GB2399129 A GB 2399129A GB 2399129 A GB2399129 A GB 2399129A GB 337281 A GB337281 A GB 337281A
Authority
GB
United Kingdom
Prior art keywords
cutter
cutterboxes
coal
relating
mining machines
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
GB2399129A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2399129A priority Critical patent/GB337281A/en
Publication of GB337281A publication Critical patent/GB337281A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/22—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
    • E21C25/50—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs with equipment for cleaning the slit

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

337,281. Hurd, F. W. Aug. 6, 1929. Coal-cuiting machines. - In a coal-cutting machine of the chain type with cutter-blocks as in Specification 241,110, the cutter-boxes are widened on the underside to assist in clearing the cut. The widening may be effected by detachable plates. As shown, alternate cutterboxes are arranged to receive cutters operating in opposite cutting directions; the idle cutterboxes are provided with scrapers 3 fixed by bolts 5 with tapered shanks adapted to engage the cutter-receiving slots. Specification 240,733 also is referred to.
GB2399129A 1929-08-06 1929-08-06 Improvements in and relating to mining machines Expired GB337281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2399129A GB337281A (en) 1929-08-06 1929-08-06 Improvements in and relating to mining machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2399129A GB337281A (en) 1929-08-06 1929-08-06 Improvements in and relating to mining machines

Publications (1)

Publication Number Publication Date
GB337281A true GB337281A (en) 1930-11-06

Family

ID=10204635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2399129A Expired GB337281A (en) 1929-08-06 1929-08-06 Improvements in and relating to mining machines

Country Status (1)

Country Link
GB (1) GB337281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650813A (en) * 1949-08-06 1953-09-01 Joy Mfg Co Disintegrating and gathering chain structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650813A (en) * 1949-08-06 1953-09-01 Joy Mfg Co Disintegrating and gathering chain structure

Similar Documents

Publication Publication Date Title
GB248997A (en) Improvements in and relating to core breakers for mining machines
GB337281A (en) Improvements in and relating to mining machines
GB203546A (en) Cutter head for wood working machines
GB241110A (en) Improvements in or relating to mining machines
GB189021A (en) Drills
GB229807A (en) Improvements in or connected with cutter chains of machines for use in mining coal and other minerals
GB367087A (en) Improvements in or connected with cutter-chains and cutters of machines for use in mining coal and other minerals
GB300730A (en) Improvements relating to coal and like cutting machines
GB338336A (en) Improvements in or relating to coal cutting and like machinery
GB426941A (en) Improvements in or relating to cutters or picks and mountings therefor for use in coal cutting or similar machines
SU97933A1 (en) Conic drill bit for drill bit
GB492758A (en) Improvements in and relating to mining machine cutter chains
GB670816A (en) A rock cutting machine
GB356562A (en) Improvements in and relating to feeding devices for use in wood working machinery
GB257465A (en) Improvements in or relating to knives
SU19884A1 (en) Attachment to a cutting machine to hold annular parts cut from the workpiece
GB206974A (en) Improvements relating to miners' and similar drills
FR581302A (en) Machine with a sharp tool for cutting, into separate slices, layers of soil to be exploited
GB247983A (en) Improvements relating to percussive drills
GB623882A (en) Improvements in or relating to mining machines
ES142186A1 (en) A machine to turn and pitch spikes, normal or inclined, with a tool for sharpening tools.
GB180145A (en) Improvements in or connected with cutting machines for use in mining coal and other minerals
GB241555A (en) Improvements in or relating to metal sawing machines with arcuate cut
GB306808A (en) Improvements in or relating to saw blades
GB443117A (en) Improvements in or relating to cutter chains and cutter bars for use in coal cuttingand similar machines