GB616946A - Improvements in coal cutters - Google Patents

Improvements in coal cutters

Info

Publication number
GB616946A
GB616946A GB28567/46A GB2856746A GB616946A GB 616946 A GB616946 A GB 616946A GB 28567/46 A GB28567/46 A GB 28567/46A GB 2856746 A GB2856746 A GB 2856746A GB 616946 A GB616946 A GB 616946A
Authority
GB
United Kingdom
Prior art keywords
coal
uprights
unit
cutters
coal cutters
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
GB28567/46A
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.)
EVENCE COPPEE ET CIE
Original Assignee
EVENCE COPPEE ET CIE
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 EVENCE COPPEE ET CIE filed Critical EVENCE COPPEE ET CIE
Publication of GB616946A publication Critical patent/GB616946A/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
    • E21C27/28—Mineral freed by means not involving slitting by percussive drills with breaking-down means, e.g. wedge-shaped tools

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)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

616,946. Coal cutters. COPPEE ET CIE, E. Sept. 24, 1946, No. 28567. Convention date, Oct. 19, 1945. [Class 124] In a coal cutter, the percussive tool 1 and its driving device 18 are rotatable vertically as a unit by means of trunnions 2 between the uprights 3 of a column which is rotatable horizontally between its supporting base 5 and locking device 8, and which is movable with said unit when it is disengaged. For this purpose, the uprights 3 carry brackets 9 for wheels or rollers 10, and a handle 21 is provided.
GB28567/46A 1945-10-19 1946-09-24 Improvements in coal cutters Expired GB616946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE616946X 1945-10-19

Publications (1)

Publication Number Publication Date
GB616946A true GB616946A (en) 1949-01-28

Family

ID=3875521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28567/46A Expired GB616946A (en) 1945-10-19 1946-09-24 Improvements in coal cutters

Country Status (1)

Country Link
GB (1) GB616946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207241A1 (en) * 1972-11-21 1974-06-14 Sp Konstruktors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207241A1 (en) * 1972-11-21 1974-06-14 Sp Konstruktors

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