AT242643B - Conical roller drill bit - Google Patents

Conical roller drill bit

Info

Publication number
AT242643B
AT242643B AT592958A AT592958A AT242643B AT 242643 B AT242643 B AT 242643B AT 592958 A AT592958 A AT 592958A AT 592958 A AT592958 A AT 592958A AT 242643 B AT242643 B AT 242643B
Authority
AT
Austria
Prior art keywords
drill bit
conical roller
roller drill
roller
conical
Prior art date
Application number
AT592958A
Other languages
German (de)
Original Assignee
Reed Roller Bit Co
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 Reed Roller Bit Co filed Critical Reed Roller Bit Co
Priority to AT592958A priority Critical patent/AT242643B/en
Application granted granted Critical
Publication of AT242643B publication Critical patent/AT242643B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



    Konusrollenbohrm. eissel    
 EMI1.1 
 

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   Fig. 3 zeigt einen Meissel, der im wesentlichen kegelförmige Schneidrollen 15 besitzt. Die Rolle 15 weist am Mantel angeordnete Reihen von Zähnen 16 und eine in Umfangsrichtung verlaufende Schneidkante 17 auf, welche die Enden der Zähne 16 miteinander verbindet. Die Schneidkante 17 ragt radial über die Zähne 16 der Rolle hinaus. 



    PATENTANSPRÜCHE :    
1. Konusrollenbohrmeissel, dessen Schneidrollen zusätzlich zu den in der Konusfläche liegenden Schneidkanten an ihrem bezüglich des Bohrloches äusseren Ende mit sich in Rollenumfangsrichtung erstreckenden Schneidkanten versehen sind, dadurch gekennzeichnet, dass die in Rollenumfangsrichtung verlaufende Schneidkante (12,14, 17) über den ganzen Umfang durchgehend ausgebildet und im Durchmesser grösser ist als die Basis des Rollenkonus. 
 EMI2.1 




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    Conical roller drill eissel
 EMI1.1
 

 <Desc / Clms Page number 2>

 



   3 shows a chisel which has essentially conical cutting rollers 15. The roller 15 has rows of teeth 16 arranged on the jacket and a cutting edge 17 running in the circumferential direction, which connects the ends of the teeth 16 to one another. The cutting edge 17 projects radially beyond the teeth 16 of the roller.



    PATENT CLAIMS:
1. Conical roller drill bits, the cutting rollers of which, in addition to the cutting edges located in the conical surface, are provided at their outer end with respect to the borehole with cutting edges extending in the circumferential direction of the roller, characterized in that the cutting edge (12, 14, 17) extending in the circumferential direction of the roller over the entire circumference continuously formed and larger in diameter than the base of the roller cone.
 EMI2.1

Claims (1)

Konusfläche liegenden Schneidkanten (11, 13,16) in die in Rollenumfangsrichtung verlaufende Schneidkante (12,14, 17) münden. Cutting edges (11, 13, 16) lying on the conical surface open into the cutting edge (12, 14, 17) running in the circumferential direction of the roller.
AT592958A 1958-08-25 1958-08-25 Conical roller drill bit AT242643B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT592958A AT242643B (en) 1958-08-25 1958-08-25 Conical roller drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT592958A AT242643B (en) 1958-08-25 1958-08-25 Conical roller drill bit

Publications (1)

Publication Number Publication Date
AT242643B true AT242643B (en) 1965-09-27

Family

ID=3581118

Family Applications (1)

Application Number Title Priority Date Filing Date
AT592958A AT242643B (en) 1958-08-25 1958-08-25 Conical roller drill bit

Country Status (1)

Country Link
AT (1) AT242643B (en)

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