GB424361A - Improvements in or relating to coal-cutting and like machines - Google Patents

Improvements in or relating to coal-cutting and like machines

Info

Publication number
GB424361A
GB424361A GB3120533A GB3120533A GB424361A GB 424361 A GB424361 A GB 424361A GB 3120533 A GB3120533 A GB 3120533A GB 3120533 A GB3120533 A GB 3120533A GB 424361 A GB424361 A GB 424361A
Authority
GB
United Kingdom
Prior art keywords
jib
coal
edge
boxes
cutting
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
GB3120533A
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.)
WILLIAM ARCHIBALD LOGAN
Original Assignee
WILLIAM ARCHIBALD LOGAN
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 WILLIAM ARCHIBALD LOGAN filed Critical WILLIAM ARCHIBALD LOGAN
Priority to GB3120533A priority Critical patent/GB424361A/en
Publication of GB424361A publication Critical patent/GB424361A/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

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)
  • Catching Or Destruction (AREA)

Abstract

424,361. Coal &c. cutting machines. LOGAN, W. A., Park Cottage, Kinghorn, Fifeshire. Nov. 9, 1933, No. 31205. [Class 68 (i)] In a coal &c. cutting machine of the chain type, the cutter boxes 3 are of U -shape to straddle the edge of the jib 1 and have inturned toes 6 engaging guide grooves 7 in the jib and tongues 10 engaging a groove 9 in the edge of the jib. The boxes may be interconnected by links 4 secured by stepped rivets 12 and guided on the edge of the jib. Alternatively, the boxes may be directly connected by means of integral lugs between which spaces for the drive sprocket teeth are provided. Further, the links 4 may overlap the top and bottom faces of the jib.
GB3120533A 1933-11-09 1933-11-09 Improvements in or relating to coal-cutting and like machines Expired GB424361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3120533A GB424361A (en) 1933-11-09 1933-11-09 Improvements in or relating to coal-cutting and like machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3120533A GB424361A (en) 1933-11-09 1933-11-09 Improvements in or relating to coal-cutting and like machines

Publications (1)

Publication Number Publication Date
GB424361A true GB424361A (en) 1935-02-20

Family

ID=10319579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3120533A Expired GB424361A (en) 1933-11-09 1933-11-09 Improvements in or relating to coal-cutting and like machines

Country Status (1)

Country Link
GB (1) GB424361A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122022B (en) * 1956-06-27 1962-01-18 Austin Hoy & Co Ltd Schraempickenhalterung for Schraemmaschinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122022B (en) * 1956-06-27 1962-01-18 Austin Hoy & Co Ltd Schraempickenhalterung for Schraemmaschinen

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