GB207299A - Improvements in connection with coal-cutting and like machines - Google Patents

Improvements in connection with coal-cutting and like machines

Info

Publication number
GB207299A
GB207299A GB2504522A GB2504522A GB207299A GB 207299 A GB207299 A GB 207299A GB 2504522 A GB2504522 A GB 2504522A GB 2504522 A GB2504522 A GB 2504522A GB 207299 A GB207299 A GB 207299A
Authority
GB
United Kingdom
Prior art keywords
worm
independent
coal
cutting
machines
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
GB2504522A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2504522A priority Critical patent/GB207299A/en
Publication of GB207299A publication Critical patent/GB207299A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like

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)
  • Harvester Elements (AREA)

Abstract

207,299. Hurd, F. W. Sept. 15, 1922. Independent driving on opposite sides.-A coal cutting or like machine is carried by two tractor bands H driven through sprockets E, E' from a worm S and either of two worm wheels R, R<1>; pinions M, M<1>, M<2>, M<3> are adapted to be clutched to the worm wheels, the pinions engaging gears G, G' fixed to sprocket shafts and giving a reversible and independent drive for each hand. The worm S may be driven by the cutter driving motor or an independent motor.
GB2504522A 1922-09-15 1922-09-15 Improvements in connection with coal-cutting and like machines Expired GB207299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2504522A GB207299A (en) 1922-09-15 1922-09-15 Improvements in connection with coal-cutting and like machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2504522A GB207299A (en) 1922-09-15 1922-09-15 Improvements in connection with coal-cutting and like machines

Publications (1)

Publication Number Publication Date
GB207299A true GB207299A (en) 1923-11-29

Family

ID=10221319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2504522A Expired GB207299A (en) 1922-09-15 1922-09-15 Improvements in connection with coal-cutting and like machines

Country Status (1)

Country Link
GB (1) GB207299A (en)

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