GB338336A - Improvements in or relating to coal cutting and like machinery - Google Patents

Improvements in or relating to coal cutting and like machinery

Info

Publication number
GB338336A
GB338336A GB3299729A GB3299729A GB338336A GB 338336 A GB338336 A GB 338336A GB 3299729 A GB3299729 A GB 3299729A GB 3299729 A GB3299729 A GB 3299729A GB 338336 A GB338336 A GB 338336A
Authority
GB
United Kingdom
Prior art keywords
cutter
cutters
boxes
chain
movement
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
GB3299729A
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.)
British Jeffrey Diamond Ltd
Original Assignee
British Jeffrey Diamond Ltd
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 British Jeffrey Diamond Ltd filed Critical British Jeffrey Diamond Ltd
Priority to GB3299729A priority Critical patent/GB338336A/en
Publication of GB338336A publication Critical patent/GB338336A/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
    • E21C25/28—Chains or chain guides
    • E21C25/34—Chains

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)
  • Sawing (AREA)

Abstract

338,336. British Jeffrey-Diamond, Ltd., and Lithgoe, J. Oct. 30, 19'29. Coal-cutting machines.- In a cutter-chain for coalcutting &c. machines with a series of separate cutters arranged in cutter-boxes in V-formation and svmmetrically disposed relatively to the central plane of movement of the chain, the cutter:boxes are so arranged as to permit the same disposition of the V-formation to be obtained relatively to the direction of movement of the chain in both directions of movement thereof. With sets of seven cutters, alternate cutter-boxes are arranged to receive successively pairs of outer cutters 8 and pairs of inner cutters 12, while intermediate cutter-boxes are identical and adapted to receive either a central cutter 13 or a pair of cutters 10.
GB3299729A 1929-10-30 1929-10-30 Improvements in or relating to coal cutting and like machinery Expired GB338336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3299729A GB338336A (en) 1929-10-30 1929-10-30 Improvements in or relating to coal cutting and like machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3299729A GB338336A (en) 1929-10-30 1929-10-30 Improvements in or relating to coal cutting and like machinery

Publications (1)

Publication Number Publication Date
GB338336A true GB338336A (en) 1930-11-20

Family

ID=10347131

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3299729A Expired GB338336A (en) 1929-10-30 1929-10-30 Improvements in or relating to coal cutting and like machinery

Country Status (1)

Country Link
GB (1) GB338336A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737378A (en) * 1950-04-29 1956-03-06 Joy Mfg Co Mining machine bit patterns
US2832579A (en) * 1954-07-12 1958-04-29 Joy Mfg Co Mining machine bit tip patterns
EP0798446A2 (en) * 1996-03-28 1997-10-01 Maschinenfabrik Korfmann GmbH Cutting chain for a cutting machine for cutting hard stone material such as marble or the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737378A (en) * 1950-04-29 1956-03-06 Joy Mfg Co Mining machine bit patterns
US2832579A (en) * 1954-07-12 1958-04-29 Joy Mfg Co Mining machine bit tip patterns
EP0798446A2 (en) * 1996-03-28 1997-10-01 Maschinenfabrik Korfmann GmbH Cutting chain for a cutting machine for cutting hard stone material such as marble or the like
EP0798446A3 (en) * 1996-03-28 1998-06-17 Maschinenfabrik Korfmann GmbH Cutting chain for a cutting machine for cutting hard stone material such as marble or the like

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