GB298235A - Improvement in pneumatic percussive tools - Google Patents

Improvement in pneumatic percussive tools

Info

Publication number
GB298235A
GB298235A GB28542/28A GB2854228A GB298235A GB 298235 A GB298235 A GB 298235A GB 28542/28 A GB28542/28 A GB 28542/28A GB 2854228 A GB2854228 A GB 2854228A GB 298235 A GB298235 A GB 298235A
Authority
GB
United Kingdom
Prior art keywords
improvement
percussive tools
pneumatic percussive
drill
pneumatic
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
GB28542/28A
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand 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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of GB298235A publication Critical patent/GB298235A/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/12—Underwater drilling
    • E21B7/122—Underwater drilling with submersible vertically movable guide

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)
  • Earth Drilling (AREA)

Abstract

298,235. Ingersoll-Rand Co., (Assignees of Hansen, C. C.). Oct. 6, 1927, [Convention date]. Percussive drills. - A submarine rock drill K is provided with a tubular mud guard F adjustably carried by the foot E of the guide frame D and connected thereto by springs S which prevent it from rising when the drill is hauled up for changing the steel.
GB28542/28A 1927-10-06 1928-10-04 Improvement in pneumatic percussive tools Expired GB298235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US298235XA 1927-10-06 1927-10-06

Publications (1)

Publication Number Publication Date
GB298235A true GB298235A (en) 1929-06-06

Family

ID=21851080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28542/28A Expired GB298235A (en) 1927-10-06 1928-10-04 Improvement in pneumatic percussive tools

Country Status (1)

Country Link
GB (1) GB298235A (en)

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