GB426941A - Improvements in or relating to cutters or picks and mountings therefor for use in coal cutting or similar machines - Google Patents

Improvements in or relating to cutters or picks and mountings therefor for use in coal cutting or similar machines

Info

Publication number
GB426941A
GB426941A GB924335A GB924335A GB426941A GB 426941 A GB426941 A GB 426941A GB 924335 A GB924335 A GB 924335A GB 924335 A GB924335 A GB 924335A GB 426941 A GB426941 A GB 426941A
Authority
GB
United Kingdom
Prior art keywords
cutter
cutters
picks
relating
coal
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
GB924335A
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.)
ROBERT KILBOURNE JEFFREY
British Jeffrey Diamond Ltd
Original Assignee
ROBERT KILBOURNE JEFFREY
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 ROBERT KILBOURNE JEFFREY, British Jeffrey Diamond Ltd filed Critical ROBERT KILBOURNE JEFFREY
Priority to GB924335A priority Critical patent/GB426941A/en
Publication of GB426941A publication Critical patent/GB426941A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
    • E21C35/1936—Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank

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)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

426,941. Coal &c. cutting machines. BRITISH JEFFREY-DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire, and JEFFREY, R. K., 8, Sessions Village, Bexley, Columbus, Ohio, U.S.A. Sept. 4, 1933, No. 9243/35. Divided out of 426,787. [Class 68 (i)] A cutter box for the cutter chain of a coal &c. cutting machine has on its outer surface a shallow transverse recess 5, with side lugs 10, in which the flat T-shaped body 6 of a cutter is reversibly held by a bolt 8 passing through a slot 9 in the cutter. The cutter has one or more tapered, upwardly and outwardly inclined, cutting points 7.
GB924335A 1933-09-04 1933-09-04 Improvements in or relating to cutters or picks and mountings therefor for use in coal cutting or similar machines Expired GB426941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB924335A GB426941A (en) 1933-09-04 1933-09-04 Improvements in or relating to cutters or picks and mountings therefor for use in coal cutting or similar machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB924335A GB426941A (en) 1933-09-04 1933-09-04 Improvements in or relating to cutters or picks and mountings therefor for use in coal cutting or similar machines

Publications (1)

Publication Number Publication Date
GB426941A true GB426941A (en) 1935-04-04

Family

ID=9868187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB924335A Expired GB426941A (en) 1933-09-04 1933-09-04 Improvements in or relating to cutters or picks and mountings therefor for use in coal cutting or similar machines

Country Status (1)

Country Link
GB (1) GB426941A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599837A (en) * 1949-02-19 1952-06-10 Joy Mfg Co Reversible mining chain
US3598447A (en) * 1969-06-30 1971-08-10 Gen Electric Cutter bits and blocks for mining machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599837A (en) * 1949-02-19 1952-06-10 Joy Mfg Co Reversible mining chain
US3598447A (en) * 1969-06-30 1971-08-10 Gen Electric Cutter bits and blocks for mining machines

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