GB747783A - Improvements in or relating to percussion tools - Google Patents

Improvements in or relating to percussion tools

Info

Publication number
GB747783A
GB747783A GB644/54A GB64454A GB747783A GB 747783 A GB747783 A GB 747783A GB 644/54 A GB644/54 A GB 644/54A GB 64454 A GB64454 A GB 64454A GB 747783 A GB747783 A GB 747783A
Authority
GB
United Kingdom
Prior art keywords
dogs
slots
ring
ratchet wheel
jan
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
GB644/54A
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.)
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
Publication of GB747783A publication Critical patent/GB747783A/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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Percussive Tools And Related Accessories (AREA)
GB644/54A 1953-01-08 1954-01-08 Improvements in or relating to percussion tools Expired GB747783A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE747783X 1953-01-08

Publications (1)

Publication Number Publication Date
GB747783A true GB747783A (en) 1956-04-11

Family

ID=6648702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB644/54A Expired GB747783A (en) 1953-01-08 1954-01-08 Improvements in or relating to percussion tools

Country Status (2)

Country Link
BE (1) BE525514A (enrdf_load_stackoverflow)
GB (1) GB747783A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE525514A (enrdf_load_stackoverflow)

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