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GB1144331A - Improvements in and relating to drills - Google Patents

Improvements in and relating to drills

Info

Publication number
GB1144331A
GB1144331A GB1100166A GB1100166A GB1144331A GB 1144331 A GB1144331 A GB 1144331A GB 1100166 A GB1100166 A GB 1100166A GB 1100166 A GB1100166 A GB 1100166A GB 1144331 A GB1144331 A GB 1144331A
Authority
GB
United Kingdom
Prior art keywords
trough
drills
march
rotary
drill
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
GB1100166A
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.)
Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
Original Assignee
Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
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 Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG filed Critical Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
Publication of GB1144331A publication Critical patent/GB1144331A/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
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

1,144,331. Drills. HAWERA HARTMETALL-WERKZEUGFABRIK RAVENSBERG G.m.b.H. 14 March, 1966 [13 March, 1965], No. 11001/66. Heading B3C. A drill for rotary, or axial and rotary, drilling rock, comprises a spiral undercut collecting trough 6, for the dust, the outer diameter of the drill forming an acute angle with the adjacent dust carrying portion 6a of the trough. Preferably the trough has a pitch angle of less than 30 degrees.
GB1100166A 1965-03-13 1966-03-14 Improvements in and relating to drills Expired GB1144331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH55459A DE1291707B (en) 1965-03-13 1965-03-13 Rock drill

Publications (1)

Publication Number Publication Date
GB1144331A true GB1144331A (en) 1969-03-05

Family

ID=7159043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1100166A Expired GB1144331A (en) 1965-03-13 1966-03-14 Improvements in and relating to drills

Country Status (5)

Country Link
AT (1) AT263594B (en)
CH (1) CH446240A (en)
DE (1) DE1291707B (en)
GB (1) GB1144331A (en)
NL (1) NL147357B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2735227C2 (en) * 1977-08-04 1983-10-27 Hawera Probst Gmbh + Co, 7980 Ravensburg Rock drill
DE2808885C2 (en) * 1978-03-02 1986-11-20 Hawera Probst Gmbh + Co, 7980 Ravensburg Rotary percussion drills for rock and the like
CH626557A5 (en) * 1978-09-28 1981-11-30 Guex Philippe & Fils Sa
DE3834675A1 (en) * 1988-10-12 1990-04-19 Hawera Probst Kg Hartmetall DRILLING TOOL
US5040620A (en) * 1990-10-11 1991-08-20 Nunley Dwight S Methods and apparatus for drilling subterranean wells
US5641028A (en) * 1995-08-10 1997-06-24 Black & Decker Inc. Drill bit with debris conveying flute

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE291398C (en) *
DE1819813U (en) * 1960-01-22 1960-10-20 Schmidt Kranz & Co Maschb G M DRILL RODS.
DE1784215A1 (en) * 1968-07-18 1971-07-29 Fritz Feise Verwaltungs Gmbh Windows with a metal or plastic profile frame

Also Published As

Publication number Publication date
NL147357B (en) 1975-10-15
AT263594B (en) 1968-07-25
CH446240A (en) 1967-11-15
DE1291707B (en) 1969-04-03
NL6603310A (en) 1966-09-14

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