GB208755A - Improvements in or relating to appliances for manipulating percussive tool devices and the like - Google Patents

Improvements in or relating to appliances for manipulating percussive tool devices and the like

Info

Publication number
GB208755A
GB208755A GB2512922A GB2512922A GB208755A GB 208755 A GB208755 A GB 208755A GB 2512922 A GB2512922 A GB 2512922A GB 2512922 A GB2512922 A GB 2512922A GB 208755 A GB208755 A GB 208755A
Authority
GB
United Kingdom
Prior art keywords
drill
manipulating
appliances
relating
percussive tool
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
GB2512922A
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.)
SIR WILLIAM ARROL AND Co
Original Assignee
SIR WILLIAM ARROL AND Co
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 SIR WILLIAM ARROL AND Co filed Critical SIR WILLIAM ARROL AND Co
Priority to GB2512922A priority Critical patent/GB208755A/en
Publication of GB208755A publication Critical patent/GB208755A/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
    • 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
    • E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil

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)

Abstract

208,755. Arrol & Co., Ltd., Sir W., and Motion, R. Sept. 16, 1922. Percussive drills.--A rock drill or other percussive tool is carried on a trolley comprising two frames b of generally triangular shape. The inclination of the arm c, at the end of which the drill is pivoted, can be altered, so as to vary the height of the drill, by a circular rack b<5> and hand-driven pinion h<3>. For the purpose of feeding the carriage, two pawls i, j are mounted thereon and connected by a link k and a spring i<2>. The pawls engage a rack l anchored to the ground between the wheels, and the rear pawl is actuated by a weight n<4> raised by a hand lever n<1>, the front pawl having a pivoted toe-piece i<7>.
GB2512922A 1922-09-16 1922-09-16 Improvements in or relating to appliances for manipulating percussive tool devices and the like Expired GB208755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2512922A GB208755A (en) 1922-09-16 1922-09-16 Improvements in or relating to appliances for manipulating percussive tool devices and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2512922A GB208755A (en) 1922-09-16 1922-09-16 Improvements in or relating to appliances for manipulating percussive tool devices and the like

Publications (1)

Publication Number Publication Date
GB208755A true GB208755A (en) 1923-12-17

Family

ID=10222664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2512922A Expired GB208755A (en) 1922-09-16 1922-09-16 Improvements in or relating to appliances for manipulating percussive tool devices and the like

Country Status (1)

Country Link
GB (1) GB208755A (en)

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