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GB392773A - Improvements in or relating to coal cutting machines - Google Patents

Improvements in or relating to coal cutting machines

Info

Publication number
GB392773A
GB392773A GB2057532A GB2057532A GB392773A GB 392773 A GB392773 A GB 392773A GB 2057532 A GB2057532 A GB 2057532A GB 2057532 A GB2057532 A GB 2057532A GB 392773 A GB392773 A GB 392773A
Authority
GB
United Kingdom
Prior art keywords
pin
cutting machines
coal
relating
pick
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
GB2057532A
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.)
JOHN OLIVER VESSEY
Original Assignee
JOHN OLIVER VESSEY
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 JOHN OLIVER VESSEY filed Critical JOHN OLIVER VESSEY
Priority to GB2057532A priority Critical patent/GB392773A/en
Publication of GB392773A publication Critical patent/GB392773A/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

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)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

392,773. Coal-cutting machines. VESSEY, J. O. and LOCKWOOD, J., Albion Steel Works, Arley Street, Sheffield. July 21, 1932, No. 20575. [Class 68 (i).] In a coal-cutting machine with detachable picks, the picks f are each detachably and reversibly held in the cutter boxes a by a pin f pressed by a spring e and engaging one of a series of indentations h formed in the front and rear faces of the pick. One or more cam faces m are formed on the cutter box and engaged by a cross-key k on the pin f whereby when the latter is rotated as by a spanner engaging its flattened end n, the pin is freed from engagement with the pick.
GB2057532A 1932-07-21 1932-07-21 Improvements in or relating to coal cutting machines Expired GB392773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2057532A GB392773A (en) 1932-07-21 1932-07-21 Improvements in or relating to coal cutting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2057532A GB392773A (en) 1932-07-21 1932-07-21 Improvements in or relating to coal cutting machines

Publications (1)

Publication Number Publication Date
GB392773A true GB392773A (en) 1933-05-25

Family

ID=10148167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2057532A Expired GB392773A (en) 1932-07-21 1932-07-21 Improvements in or relating to coal cutting machines

Country Status (1)

Country Link
GB (1) GB392773A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610049A (en) * 1949-10-18 1952-09-09 Elles Albert Charles Bit
DE1032702B (en) * 1953-09-01 1958-06-26 James Alexander Cook Cylindrical bit holder with screw thread for broaching machines
US2965365A (en) * 1958-04-14 1960-12-20 Cincinnati Mine Machinery Co Bit and resilient holding means therefor
US9670648B2 (en) 2015-08-10 2017-06-06 Caterpillar Inc. Replaceable tip systems for a tine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610049A (en) * 1949-10-18 1952-09-09 Elles Albert Charles Bit
DE1032702B (en) * 1953-09-01 1958-06-26 James Alexander Cook Cylindrical bit holder with screw thread for broaching machines
US2965365A (en) * 1958-04-14 1960-12-20 Cincinnati Mine Machinery Co Bit and resilient holding means therefor
US9670648B2 (en) 2015-08-10 2017-06-06 Caterpillar Inc. Replaceable tip systems for a tine

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