VERFAHREN UND VORRICHTUNG ZUM SCHNEIDEN VON KOERPERN AUS HARTEN MATERIALIEN, OHNE KOERPER AUS WEICHEREN MATERIALIEN ZU SCHNEIDEN.

摘要

The invention concerns a process and apparatus for cutting hard objects or materials without cutting softer objects or materials. In the invention, a transmission imparts to the cutting element a relatively slow periodic motion that is combined with a second, more rapid periodic motion consisting of relatively low-amplitude vibrations, with the second motion being imparted by oscillation. The invention may be applied to jigsaws and circular saws.