GB175542A - Improvements in or relating to coal or rock drilling and channelling machines - Google Patents

Improvements in or relating to coal or rock drilling and channelling machines

Info

Publication number
GB175542A
GB175542A GB6449/21A GB644921A GB175542A GB 175542 A GB175542 A GB 175542A GB 6449/21 A GB6449/21 A GB 6449/21A GB 644921 A GB644921 A GB 644921A GB 175542 A GB175542 A GB 175542A
Authority
GB
United Kingdom
Prior art keywords
support
coal
relating
rock drilling
worm
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
GB6449/21A
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 GB6449/21A priority Critical patent/GB175542A/en
Publication of GB175542A publication Critical patent/GB175542A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

175,542. Rayner, G. H. T., and Rayner, P. Feb. 25, 1921. Drills.-A hand or power driven drill for operating on rock or coal is attached to a support p which can turn on ball bearings round a central fixed support a. A toothed ring or segment f, which may be renewable, is bolted to the support a, and a worm 7, mounted in a box u, is carried by the support p and gears with the ring f. To adjust the worm horizontally and vertically, lateral play is provided, as shown at w and 4, round the bolts which hold the box to the support p. A handle (not shown) is attached to the worm shaft.
GB6449/21A 1921-02-25 1921-02-25 Improvements in or relating to coal or rock drilling and channelling machines Expired GB175542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6449/21A GB175542A (en) 1921-02-25 1921-02-25 Improvements in or relating to coal or rock drilling and channelling machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6449/21A GB175542A (en) 1921-02-25 1921-02-25 Improvements in or relating to coal or rock drilling and channelling machines

Publications (1)

Publication Number Publication Date
GB175542A true GB175542A (en) 1922-02-23

Family

ID=9814674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6449/21A Expired GB175542A (en) 1921-02-25 1921-02-25 Improvements in or relating to coal or rock drilling and channelling machines

Country Status (1)

Country Link
GB (1) GB175542A (en)

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