AT83087B - Drill. - Google Patents

Drill.

Info

Publication number
AT83087B
AT83087B AT83087DA AT83087B AT 83087 B AT83087 B AT 83087B AT 83087D A AT83087D A AT 83087DA AT 83087 B AT83087 B AT 83087B
Authority
AT
Austria
Prior art keywords
drill
chip evacuation
desc
evacuation grooves
warning
Prior art date
Application number
Other languages
German (de)
Inventor
Simon Oka
Original Assignee
Simon Oka
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 Simon Oka filed Critical Simon Oka
Application granted granted Critical
Publication of AT83087B publication Critical patent/AT83087B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



  Bohrer. 



   Die Form der Spanableitungsnuten des   Spiralboh : ers   hat den Nachteil, dass der Bohrer in einer Gussform nur nach Überwindung von grossen Schwierigkeiten gegossen werden kann, da die Form aus vielen Stücken zusammengestellt werden muss, so dass eine Massenfabrikation nicht möglich ist. 



   Gegenstand der Erfindung ist ein Bohrer, welcher keine schraubenförmigen, sondern beiderseits symmetrisch angeordnete wellenförmige Spanableitungsnuten besitzt, so dass er in einer zweiteiligen Gussform gegossen werden kann. Ein weiterer Vorteil dieses Bohrers ist, dass er rechts-oder linkssschneidend verwendet werden kann. 



   Die Figur zeigt den Bohrer gemäss der   Erfindung   in Ansicht. Es bezeichnet a den Bohrer und b eine der beiden wellenförmigen Spanableitungsnuten. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Drill.



   The shape of the chip evacuation grooves of the spiral drill has the disadvantage that the drill can only be cast in a mold after overcoming great difficulties, since the mold has to be put together from many pieces so that mass production is not possible.



   The subject of the invention is a drill which does not have any helical but rather wave-shaped chip evacuation grooves arranged symmetrically on both sides, so that it can be cast in a two-part mold. Another advantage of this drill is that it can be used for right or left cutting.



   The figure shows the drill according to the invention in view. It denotes a the drill and b one of the two wave-shaped chip evacuation grooves.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Bohrer, dadurch gekennzeichnet, dass die Spanableitungsnuten beiderseits symmetrisch wellenförmig verlaufen. EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Drill, characterized in that the chip evacuation grooves run symmetrically undulating on both sides. EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT83087D 1918-08-23 1918-08-23 Drill. AT83087B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT83087T 1918-08-23

Publications (1)

Publication Number Publication Date
AT83087B true AT83087B (en) 1921-03-10

Family

ID=3604313

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83087D AT83087B (en) 1918-08-23 1918-08-23 Drill.

Country Status (1)

Country Link
AT (1) AT83087B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005057996A1 (en) * 2005-12-05 2007-06-06 Gebr. Brasseler Gmbh & Co. Kg Root canal instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005057996A1 (en) * 2005-12-05 2007-06-06 Gebr. Brasseler Gmbh & Co. Kg Root canal instrument
DE102005057996B4 (en) * 2005-12-05 2008-08-28 Gebr. Brasseler Gmbh & Co. Kg Root canal instrument

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