GB134311A - Improvements in and relating to Percussive Rock Drills or Boring Tools. - Google Patents

Improvements in and relating to Percussive Rock Drills or Boring Tools.

Info

Publication number
GB134311A
GB134311A GB17702/18A GB1770218A GB134311A GB 134311 A GB134311 A GB 134311A GB 17702/18 A GB17702/18 A GB 17702/18A GB 1770218 A GB1770218 A GB 1770218A GB 134311 A GB134311 A GB 134311A
Authority
GB
United Kingdom
Prior art keywords
piston
relating
valve
boring tools
rock 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
GB17702/18A
Inventor
George Jonathan Short
Joseph Henry Williams
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
Priority to GB17702/18A priority Critical patent/GB134311A/en
Publication of GB134311A publication Critical patent/GB134311A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes

Abstract

134,311. Short, G. J., and Williams, J. H. Oct. 30, 1918. Percussive drills. - Constant or intermittent streams of water are directed on to and around the tool by a series of nozzles l arranged on an annular chamber i secured to the piston-rod a. The nozzles are in one or more rings, preferably concentric with the piston, and are inclined towards the drill c. The chamber i may be adjustable along the piston-rod. In the form shown, the streams of water are intermittent, flowing only when a valve t is opened by a cam or eccentric q which is intermittently rotated by gearing n, o and the usual rifle-bar d. A slide or rotary valve may replace the valve t.
GB17702/18A 1918-10-30 1918-10-30 Improvements in and relating to Percussive Rock Drills or Boring Tools. Expired GB134311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17702/18A GB134311A (en) 1918-10-30 1918-10-30 Improvements in and relating to Percussive Rock Drills or Boring Tools.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17702/18A GB134311A (en) 1918-10-30 1918-10-30 Improvements in and relating to Percussive Rock Drills or Boring Tools.

Publications (1)

Publication Number Publication Date
GB134311A true GB134311A (en) 1919-10-30

Family

ID=32408968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17702/18A Expired GB134311A (en) 1918-10-30 1918-10-30 Improvements in and relating to Percussive Rock Drills or Boring Tools.

Country Status (1)

Country Link
GB (1) GB134311A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005945A1 (en) * 1994-08-19 1996-02-29 Bretec Oy Hydraulic percussion hammer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005945A1 (en) * 1994-08-19 1996-02-29 Bretec Oy Hydraulic percussion hammer

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