GB762847A - Improvements in and relating to rotary drilling machines - Google Patents

Improvements in and relating to rotary drilling machines

Info

Publication number
GB762847A
GB762847A GB37476/54A GB3747654A GB762847A GB 762847 A GB762847 A GB 762847A GB 37476/54 A GB37476/54 A GB 37476/54A GB 3747654 A GB3747654 A GB 3747654A GB 762847 A GB762847 A GB 762847A
Authority
GB
United Kingdom
Prior art keywords
motor
relating
rotary drilling
drilling machines
dec
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
GB37476/54A
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 GB762847A publication Critical patent/GB762847A/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/081—Screw-and-nut feed mechanisms
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

762,847. Portable drilling-machines. SEAWRIGHT, R. M. F. Dec. 28, 1954 [Dec. 29, 1953], No. 37476/54. Class 83 (3). [Also in Group XXVI] A drilling-machine comprises two fluid-pressure motors, one 15 to rotate the drill-chuck 11 and the other 16, motivated by the residual energy of the first, to drive the feed mechanism 18, 10. Additional pressure-fluid may be supplied to the feed-motor through a valve 19. Each motor may be of sliding-vane type and have a casing 50, Fig. 4, adjustable by a handlever 56 to vary the expansion ratio of, or to reverse, the motor.
GB37476/54A 1953-12-29 1954-12-28 Improvements in and relating to rotary drilling machines Expired GB762847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA762847X 1953-12-29

Publications (1)

Publication Number Publication Date
GB762847A true GB762847A (en) 1956-12-05

Family

ID=25571083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37476/54A Expired GB762847A (en) 1953-12-29 1954-12-28 Improvements in and relating to rotary drilling machines

Country Status (1)

Country Link
GB (1) GB762847A (en)

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