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B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B51/00—Tools for drilling machines
B23B51/04—Drills for trepanning
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23B—TURNING; BORING
B23B51/00—Tools for drilling machines
B23B51/04—Drills for trepanning
B23B51/044—Drills for trepanning with core holding devices
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Drilling Tools
(AREA)
Drilling And Boring
(AREA)
Description
BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.
Claims (1)
Patent-Anspruch:Patent claim:Ein Holzbohrer, bestehend aus dem cylindrischen Kernstück a mit einseitig angefeilter
Faconschneide b und der auf das Kernstück geschobenen, mit einer Schraube festgehaltenen
Führungshülse c, an welcher sich die kreisrunde Führungsschneide e und über derselben zwei
sich gegenüberstehende Fagonschneiden f und eine Oeffnung g "für den Durchgang der Späne
befinden.A wood drill, consisting of the cylindrical core a with a facon cutting edge filed on one side and the guide sleeve c pushed onto the core and held in place with a screw , on which the circular guide cutting edge e and above it two opposing Fagon cutting edges f and an opening g ″ for the The passage of the chips.Hierzu 1 Blatt Zeichnungen,1 sheet of drawings,
Tool e.g. jig saw, cutting edge adjusting device for producing e.g. holes, has slide gage slidable on measuring bar until measuring tip lies on workpiece centre marking, where dimension of workpiece radius is adjusted accordingly