GB191504730A - Improvements in Hammer Rock Drills. - Google Patents

Improvements in Hammer Rock Drills.

Info

Publication number
GB191504730A
GB191504730A GB191504730DA GB191504730A GB 191504730 A GB191504730 A GB 191504730A GB 191504730D A GB191504730D A GB 191504730DA GB 191504730 A GB191504730 A GB 191504730A
Authority
GB
United Kingdom
Prior art keywords
chuck
extension
squared
piston
drills
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
Inventor
Walter Edward Kimber
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
Application granted granted Critical
Publication of GB191504730A publication Critical patent/GB191504730A/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
    • E21B6/08—Separate drives for percussion and rotation

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

4730. Kimber, W. E. March 26. Percussive drills.-The chuck 6 has a squared connexion 4 with a rod 3 passing centrally through the hammer piston to a squared connexion 5 with an extension 8 rotatable in the cylinder body 2. The connexions 4, 5 are loose fitting to provide for possible errors in alinement. The extension 8 acts as a feed-piston and is rotated by a crank and rod 11, on which it is slidably mounted. Passages 19, 21 convey air from the casing 16 to the rear of the extension 8, which is provided with piston-rings 22 working in the abutment cylinder 9. The drills engage the chuck by a threaded portion 23 and a plain portion 24. A squared portion 28 is provided for engagement by a spanner. Fluid under pressure is supplied to an annular channel 26 and thence by passages 27 to the bottom of the recess in the chuck and the bore of the drill.
GB191504730D 1915-03-26 1915-03-26 Improvements in Hammer Rock Drills. Expired GB191504730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191504730T 1915-03-26

Publications (1)

Publication Number Publication Date
GB191504730A true GB191504730A (en) 1915-12-30

Family

ID=32674028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191504730D Expired GB191504730A (en) 1915-03-26 1915-03-26 Improvements in Hammer Rock Drills.

Country Status (1)

Country Link
GB (1) GB191504730A (en)

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