Abstract: A chip collecting apparatus for a machine tool has two separate chip conveyors for chips of different materials. The chip collecting apparatus receives chips on fixed guide plates. Chips are washed from the fixed guide plates into a chip collecting area. In the chip collecting area is disposed a change-over plate for directing the chips from the guide plates onto either one of the chip conveyors. The change-over plate is pivotably moveable between different positions corresponding to the respective chip conveyors. In an alternative embodiment, only one chip conveyor is used, and the change-over plate is provided at the discharge end of the conveyor to discharge chips into either one of two chip collecting bins.

Abstract: An antiscattering device for the collection of waste material (dust, shavings) produced in the course of drilling, milling and similar operations, to be fitted in the most appropriate way on machine tools and basically made up of a bellows shaped bell (e.g. frustum-conical), provided, if required, with an axially elastic vacuum cleaner or extractor--which can be fitted on the machine tools themselves. This bell is permanently or temporarily secured to the frames of machine tools (e.g. manually, on a drill), coaxially to the drill bit while its base, provided with a seal ring, rests on the surface of the material to be drilled, thereby creating, with its shell, a receptacle where the waste material collects.