GB503999A - Improvements in or relating to picks or cutters of coal or rock cutting and like machines - Google Patents

Improvements in or relating to picks or cutters of coal or rock cutting and like machines

Info

Publication number
GB503999A
GB503999A GB1204238A GB1204238A GB503999A GB 503999 A GB503999 A GB 503999A GB 1204238 A GB1204238 A GB 1204238A GB 1204238 A GB1204238 A GB 1204238A GB 503999 A GB503999 A GB 503999A
Authority
GB
United Kingdom
Prior art keywords
coal
machines
inset
picks
shank
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
GB1204238A
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.)
DARWINS Ltd
Original Assignee
DARWINS Ltd
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 DARWINS Ltd filed Critical DARWINS Ltd
Priority to GB1204238A priority Critical patent/GB503999A/en
Publication of GB503999A publication Critical patent/GB503999A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor

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)
  • Earth Drilling (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

503,999. Coal &c. cutting-machines. DARWINS, Ltd., and LINLEY, A. April 22, 1938, No.12042. (Class 68 (in To enable gripping devices to obtain an adequate grip, the picks of coal or rock cutting or like machines are formed by casting steel around an inset of relatively soft, ductile and tenacious material, such as mild steel, so that the inset is embedded in the shank and has at least one face exposed at a side of the shank. As shown, the inset 6 is of I-section, the web thereof having an aperture 9 and notches 10 to key the inset to the body of the shank ; a number of small apertures may replace the aperture 9.
GB1204238A 1938-04-22 1938-04-22 Improvements in or relating to picks or cutters of coal or rock cutting and like machines Expired GB503999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1204238A GB503999A (en) 1938-04-22 1938-04-22 Improvements in or relating to picks or cutters of coal or rock cutting and like machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1204238A GB503999A (en) 1938-04-22 1938-04-22 Improvements in or relating to picks or cutters of coal or rock cutting and like machines

Publications (1)

Publication Number Publication Date
GB503999A true GB503999A (en) 1939-04-18

Family

ID=9997376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1204238A Expired GB503999A (en) 1938-04-22 1938-04-22 Improvements in or relating to picks or cutters of coal or rock cutting and like machines

Country Status (1)

Country Link
GB (1) GB503999A (en)

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