GB674714A - Improvements in apparatus for mining coal or other minerals from the solid - Google Patents

Improvements in apparatus for mining coal or other minerals from the solid

Info

Publication number
GB674714A
GB674714A GB24435/50A GB2443550A GB674714A GB 674714 A GB674714 A GB 674714A GB 24435/50 A GB24435/50 A GB 24435/50A GB 2443550 A GB2443550 A GB 2443550A GB 674714 A GB674714 A GB 674714A
Authority
GB
United Kingdom
Prior art keywords
minerals
solid
mining coal
mining
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
GB24435/50A
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.)
Joy Manufacturing Co
Original Assignee
Joy Manufacturing Co
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 Joy Manufacturing Co filed Critical Joy Manufacturing Co
Publication of GB674714A publication Critical patent/GB674714A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/26—Mineral freed by means not involving slitting by closely adjacent cutter chains acting on the full working face

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

674,714. Mining-machines. JOY MANUFACTURING CO. May 20, 1948. [May 28, 1947] No. 24435/50. Divided out of 674,626. Drawings to Specification. Class 68 (i). In a mining-machine as described in Specification 674,626, the disintegrating mechanism is not traversed laterally across the face.
GB24435/50A 1947-05-28 1948-05-20 Improvements in apparatus for mining coal or other minerals from the solid Expired GB674714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US674714XA 1947-05-28 1947-05-28

Publications (1)

Publication Number Publication Date
GB674714A true GB674714A (en) 1952-06-25

Family

ID=22076211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24435/50A Expired GB674714A (en) 1947-05-28 1948-05-20 Improvements in apparatus for mining coal or other minerals from the solid

Country Status (1)

Country Link
GB (1) GB674714A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126725A1 (en) * 1983-03-23 1984-11-28 VOEST-ALPINE Aktiengesellschaft Partial-cut cutting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126725A1 (en) * 1983-03-23 1984-11-28 VOEST-ALPINE Aktiengesellschaft Partial-cut cutting machine

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