GB721078A - Improvements in or relating to coal-cutting machines - Google Patents

Improvements in or relating to coal-cutting machines

Info

Publication number
GB721078A
GB721078A GB31490/52A GB3149052A GB721078A GB 721078 A GB721078 A GB 721078A GB 31490/52 A GB31490/52 A GB 31490/52A GB 3149052 A GB3149052 A GB 3149052A GB 721078 A GB721078 A GB 721078A
Authority
GB
United Kingdom
Prior art keywords
jib
mineral
machine
pick
dec
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
GB31490/52A
Other languages
English (en)
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.)
Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
Original Assignee
Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
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 Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH filed Critical Gebr Eickhoff Maschinenfabrik u Eisengiesserei GmbH
Publication of GB721078A publication Critical patent/GB721078A/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
    • E21C25/52—Machines incorporating two or more of the slitting means according to groups E21C25/02, E21C25/06, E21C25/16, E21C25/20 and E21C25/22

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Harvesting Machines For Root Crops (AREA)
GB31490/52A 1951-12-19 1952-12-12 Improvements in or relating to coal-cutting machines Expired GB721078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE721078X 1951-12-19

Publications (1)

Publication Number Publication Date
GB721078A true GB721078A (en) 1954-12-29

Family

ID=6629114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31490/52A Expired GB721078A (en) 1951-12-19 1952-12-12 Improvements in or relating to coal-cutting machines

Country Status (3)

Country Link
BE (1) BE516333A (enrdf_load_stackoverflow)
FR (1) FR1068387A (enrdf_load_stackoverflow)
GB (1) GB721078A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091440A (en) * 1960-11-29 1963-05-28 Mavor & Coulson Ltd Cutter-loaders for mining minerals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091440A (en) * 1960-11-29 1963-05-28 Mavor & Coulson Ltd Cutter-loaders for mining minerals

Also Published As

Publication number Publication date
BE516333A (enrdf_load_stackoverflow)
FR1068387A (fr) 1954-06-24

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