GB1419402A - - Google Patents

Info

Publication number
GB1419402A
GB1419402A GB683773A GB683773A GB1419402A GB 1419402 A GB1419402 A GB 1419402A GB 683773 A GB683773 A GB 683773A GB 683773 A GB683773 A GB 683773A GB 1419402 A GB1419402 A GB 1419402A
Authority
GB
United Kingdom
Prior art keywords
machine
switches
motor
conveyer
magnet
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
GB683773A
Other languages
English (en)
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 filed Critical
Priority to GB683773A priority Critical patent/GB1419402A/en
Publication of GB1419402A publication Critical patent/GB1419402A/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
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/36—Machine self-propelled along the 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)
  • Control Of Conveyors (AREA)
GB683773A 1973-02-12 1973-02-12 Expired GB1419402A (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB683773A GB1419402A (enrdf_load_stackoverflow) 1973-02-12 1973-02-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB683773A GB1419402A (enrdf_load_stackoverflow) 1973-02-12 1973-02-12

Publications (1)

Publication Number Publication Date
GB1419402A true GB1419402A (enrdf_load_stackoverflow) 1975-12-31

Family

ID=9821661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB683773A Expired GB1419402A (enrdf_load_stackoverflow) 1973-02-12 1973-02-12

Country Status (1)

Country Link
GB (1) GB1419402A (enrdf_load_stackoverflow)

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee