GB456140A - Rotary drilling bit - Google Patents

Rotary drilling bit

Info

Publication number
GB456140A
GB456140A GB13237/35A GB1323735A GB456140A GB 456140 A GB456140 A GB 456140A GB 13237/35 A GB13237/35 A GB 13237/35A GB 1323735 A GB1323735 A GB 1323735A GB 456140 A GB456140 A GB 456140A
Authority
GB
United Kingdom
Prior art keywords
ports
faces
chamber
drill rod
around
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
GB13237/35A
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.)
Chicago Pneumatic Tool Co LLC
Original Assignee
Chicago Pneumatic Tool Co LLC
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 Chicago Pneumatic Tool Co LLC filed Critical Chicago Pneumatic Tool Co LLC
Publication of GB456140A publication Critical patent/GB456140A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)

Abstract

456,140. Drills. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A. May 3, 1935, No. 13237. Convention date, May 29, 1934. [Class 85] [See also Group XXIII] A drilling-bit with means for attachment to a tubular drill rod, and having a central front opening, is provided with concave and convex cutting faces around the opening, diamond cutters being set in both faces. In Fig. 2, a head 1, threaded at 2 for connection to the drill rod, has a chamber 4 through which water passes from the tube to side ports 5 and a stepped central port 6 ; around the port 6 is a conical recess 8 surrounded by a convex face 3, the faces 3, 8, being studded with diamonds. In Fig. 4, the recess 8 is formed in a detachable holder 11 with a tapered end 13, the holder being held by a nut 12. Water flows to the ports 5 through one or more ports 14 and a chamber 15.
GB13237/35A 1934-05-29 1935-05-03 Rotary drilling bit Expired GB456140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US456140XA 1934-05-29 1934-05-29

Publications (1)

Publication Number Publication Date
GB456140A true GB456140A (en) 1936-11-03

Family

ID=21938928

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13237/35A Expired GB456140A (en) 1934-05-29 1935-05-03 Rotary drilling bit

Country Status (1)

Country Link
GB (1) GB456140A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175629A (en) * 1962-11-01 1965-03-30 Jersey Prod Res Co Jet bit
DE2807156A1 (en) * 1978-02-20 1979-08-23 Heller Verwaltungsges ROCK DRILLS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175629A (en) * 1962-11-01 1965-03-30 Jersey Prod Res Co Jet bit
DE2807156A1 (en) * 1978-02-20 1979-08-23 Heller Verwaltungsges ROCK DRILLS

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