DE417641C - Three-pronged rock drill bit insert - Google Patents

Three-pronged rock drill bit insert

Info

Publication number
DE417641C
DE417641C DEK85187D DEK0085187D DE417641C DE 417641 C DE417641 C DE 417641C DE K85187 D DEK85187 D DE K85187D DE K0085187 D DEK0085187 D DE K0085187D DE 417641 C DE417641 C DE 417641C
Authority
DE
Germany
Prior art keywords
rock drill
pronged
drill bit
edges
bit insert
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
DEK85187D
Other languages
German (de)
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.)
KARL LAISSLE DIPL ING
Original Assignee
KARL LAISSLE DIPL ING
Publication date
Priority to DEK85187D priority Critical patent/DE417641C/en
Application granted granted Critical
Publication of DE417641C publication Critical patent/DE417641C/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

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)

Description

Abb. i.Fig.i.

Abb. 2.Fig. 2.

Claims (2)

Patent-Ansprüche:Patent Claims: 1. Dreizinkige Gesteinbohrer-Einsatzschneide mit Brechwirkung nach Patent 413066, dadurch gekennzeichnet, daß die Mittelspitze, deren Kanten beiderseits als Brechkanten von den Wurzeln der Seitens dhneidzähne ausgehen, vor den Seitenschneidzähnen hervorragt.1. Three-pronged rock drill bit insert with breaking effect according to patent 413066, characterized in that the central point, the edges of which on both sides as breaking edges start from the roots of the lateral teeth, in front of the lateral incisors stands out. 2. Gesteinbohrer-Einsatzschneide mit Brechwirkung nach Anspruch I1 dadurch gekennzeichnet, daß sich die Mittelspitze, deren Kanten beiderseits als Brechkanten von den Wurzeln der Seitenschneidzähne ausgehen, um ein geringes exzentrisch zwischen den Wurzeln verschieden breiter Seitenschneidzähne erhebt.2. Rock drill insert cutting edge with breaking effect according to claim I 1, characterized in that the central tip, the edges of which extend on both sides as breaking edges from the roots of the side cutting teeth, rises to a slight eccentric between the roots of side cutting teeth of different widths.
DEK85187D Three-pronged rock drill bit insert Expired DE417641C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK85187D DE417641C (en) Three-pronged rock drill bit insert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK85187D DE417641C (en) Three-pronged rock drill bit insert

Publications (1)

Publication Number Publication Date
DE417641C true DE417641C (en) 1925-10-06

Family

ID=7235290

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK85187D Expired DE417641C (en) Three-pronged rock drill bit insert

Country Status (1)

Country Link
DE (1) DE417641C (en)

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