GB119649A - Improvements in Pneumatic Hammers and the like. - Google Patents

Improvements in Pneumatic Hammers and the like.

Info

Publication number
GB119649A
GB119649A GB8657/18A GB865718A GB119649A GB 119649 A GB119649 A GB 119649A GB 8657/18 A GB8657/18 A GB 8657/18A GB 865718 A GB865718 A GB 865718A GB 119649 A GB119649 A GB 119649A
Authority
GB
United Kingdom
Prior art keywords
piston
tool
balls
rollers
hammer
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 - Lifetime
Application number
GB8657/18A
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.)
FONDERIE OFFICINE FREJUS AUTOM
Original Assignee
FONDERIE OFFICINE FREJUS AUTOM
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 of GB119649A publication Critical patent/GB119649A/en
Application filed by FONDERIE OFFICINE FREJUS AUTOM filed Critical FONDERIE OFFICINE FREJUS AUTOM
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

119,649. Fonderie Officine Frejus- Automobili Diatto. Sept. 15, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Percussive tools.-In a pneumatic hammer, drill, or like tool, the hammer piston 6 is non- rotatably connected to the tool and engages an annular member 1 by means of helical grooves 5, while one or more balls or rollers 7, arranged in oblique recesses 1<11> in the member 1 or in the surrounding part of the cylinder 2, prevent rotation of the member 1 in one direction whereby rotation is imparted to the piston and tool during one stroke of the piston. The balls or rollers are preferably pressed by light springs 8.
GB8657/18A 1917-09-15 1918-05-24 Improvements in Pneumatic Hammers and the like. Expired - Lifetime GB119649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT119649X 1917-09-15

Publications (1)

Publication Number Publication Date
GB119649A true GB119649A (en)

Family

ID=32375393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8657/18A Expired - Lifetime GB119649A (en) 1917-09-15 1918-05-24 Improvements in Pneumatic Hammers and the like.

Country Status (1)

Country Link
GB (1) GB119649A (en)

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