Abstract: A sifting device including a sieve box (1), which is caused to oscillate using a drive (4), as a fundamental oscillation system having essentially horizontal first transverse carriers (1.3) and a supplementary oscillation system (2), attached to the sieve box (1), having essentially horizontal second transverse carriers (2.3), positioned essentially parallel to the first transverse carriers, which are each positioned between two first transverse carriers (1.3) and are connected thereto by stretchable sieve liner strips (3), with, for two sequential transverse carriers, the transverse carrier closer to the feeding side (A) being higher than the subsequent transverse carrier, which is closer to the discharge side (B), with the sifting device having at least two sections, in which the height difference between the centers of gravity of two sequential transverse carriers (1.3, 2.3) is greater in the particular feeding-side section than in the discharge-side section.

Abstract: Method and apparatus for sorting waste paper pieces of different grades and conditions. The method includes moving a plurality of waste paper pieces in a conveying direction on at least one sorting belt, each waste paper piece having a surface, irradiating at least one area of the surface with radiation, registering the radiation reflected from the surface, and sorting the waste paper on the basis of the reflected radiation, wherein waste paper pieces of at least one type are separated from waste paper pieces of at least one other type.

Abstract: A lighting apparatus for use with line scan cameras in plants for detecting and recognizing objects in a flow of materials such as goods to be sorted, in which several separately controllable diodes and an optical device are provided, with the diodes being disposed at least in one row next to one another over the width of the respective section of the plant and the optical device regularizes the light emitted by the diodes in such a way that a secure detection of the objects and its properties such as material composition, color, size or the like is ensured by cameras. The optical device comprises two diffusers and an interposed lens.

Abstract: A device for making available and delivering sacks which can be supplied in hoppers (1).

Abstract: A method for determining the purity of processed waste glass, in which the sample quantity is taken from the processed waste glass stream and is deposited preferably in one layer and is allowed to flow over a free-falling track and the foreign matter according to non-ferrous metals and opaque foreign particles are blown out and weighed according to a separate detection of said groups of foreign matter and for the determination of the quality of the sample the ratios of non-ferrous metal additions to the entire sample quantity and the opaque foreign particles to the entire sample quantity are determined, with said groups of foreign matter being jointly weighed continuously and the weight increases, depending on the group of foreign matter--non-ferrous metals or opaque foreign particles--which was detected immediately prior to the weight increase, being added to this group of foreign matter.

Abstract: Device for separating bodies with: a conveying device comprising at least one rim proceeding in the conveying direction; at least one guiding device which is permanently mounted at a distance which is significantly smaller than the dimensions perpendicular to the conveying device of the bodies to be separated, which guiding device comprises a deflector which forms an angle with the direction of movement of the conveying device; and a feeding position for the bodies. In order to allow a reliable separation of the bodies, it is provided that the deflector of the guiding device with its--viewed in the conveying direction--trailing edge ends at a distance before the nearest rim of the conveying device, so that an unobstructed conveying path for the bodies to be separated remains between the trailing edge of the deflector and the nearest rim of the conveying device.

Abstract: Device for separating a mixture of objects of flat dimension and objects of spatial dimension with a conveying device comprising at least one conveying carrier. The conveying device comprises two boundaries to which tangents proceeding in the conveying direction may be joined, and a feeding device for feeding a stream of objects to be separated to the conveying device substantially in one layer. In order to allow a reliable separation of foils and bodies of spatial dimension, it is provided that the conveying carrier is penetrable by air or that gaps for the passing through of air are provided between the conveying carriers. A surface tangent to the upper side of the conveying carrier(s) defines a line of intersection with a plane standing rectangularly to the conveying direction, which line forms an angle with the horizontal.

Abstract: An apparatus for sorting pieces of waste of materials having different properties comprises a disk revolving about a substantially vertical axis and comprising a conically upwardly and outwardly tapering rim defining a conveying path, which is concave in cross section, the rim constituting an outer guide wall, and a feeding device for feeding successive pieces to the revolving conveying path at a feeding station. The revolution of the conveying path generates a centrifugal force holding the pieces against the outer guide wall, and a sensor device is arranged along the conveying path for sensing the different properties of the successive pieces. Devices controlled by the sensor device remove single pieces at discharge stations dependent on the sensed properties of the pieces.

Abstract: A method for determining the purity of treated used glass, in which the sample quantity is taken from the treated used glass stream and the foreign bodies still contained therein, separated according to non-ferrous metals and opaque foreign materials such as ceramic and porcelain particles and stones, are sorted out, weighed and put in relation to the weight of the whole sample. In order to be able to analyze a sample in a simple manner, it is provided that the sample is piled in one layer and allowed to trickle over a free-falling path and that foreign bodies made from non-ferrous metals are blown out and thereafter opaque foreign bodies are blown out and collected in containers separate from the non-ferrous metals.

Abstract: A screening apparatus comprises an elongated support frame; a mobile, deformable sieve consisting of a sieve mat extending along the length of the support frame and having lateral edges; and a series of alternatingly immobile and mobile sieve mat carriers mounted on the support frame and extending transversely to the length of the support frame, the sieve mat being affixed to the carriers and the mobile carriers being movable with respect to the support frame in the direction of the length of the support frame, the lateral sieve mat edges extending transversely to the carriers and being raised to form rims for the sieve mat.

Abstract: A device for smoothing out and pressing together the free projecting end extending over the filling material of filled sacks, said sacks comprising side walls which are inwardly folded and there being two movable pairs of fingers engaging in the sack in the plane of the opened sack or a plane being parallel to said plane as well as a plane being lateral to said plane, whereby said fingers of each of said pair of fingers are arranged at a distance in the transverse direction of the sack opening and two rods or knives are arranged, said rods or knives being movable against each other and are extendable from the outer side of the sack between the fingers of each pair of fingers engaging in the sack, and, if necessary, on both sides of a closable loading funnel of a sack filling station.

Abstract: A transport installation comprises a conveyor belt extending along a curved track in a substantially horizontal plane for transporting goods in a conveying direction, separate conveyor belt support stations for the upper and the lower strand of the conveyor belt, the separate conveyor belt support stations being spaced along the curved track and each of said stations having at least one conveyor belt strand support roller rotatable about an axis extending transversely to the conveying direction, and each conveyor belt support station being independently freely pivotal in a pivoting path in response to forces applied to the conveyor belt strands about an axis extending above the conveyor track and substantially parallel to the conveying direction, the pivoting path extending transversely to the conveying direction and rising towards the center point of the curvature of the track.

Abstract: A screening machine (FIG. 3) having a vibrator constructed so that the striking elements 7 move substantially only vertically. The vibrator comprises springs having crossing elements 2,3 mounted on the frame and connecting member 4. The connecting member 4 can be moved to rotate the striking elements about the crossing point D of the crossing elements, which is disposed substantially in the plane of the spring.

Abstract: In a vibratory mill, a plurality of parallel, horizontal grinding tubes are mounted in groups on an upper and a lower part of a carrier. The two carrier parts are linked together by two pairs of links which form a parallel crank linkage and stationary bearings mount each of the links intermediate their ends for pivoting about an axis parallel to the grinding tube axes. An eccentric drive mechanism is arranged to vibrate the carrier in a direction transverse to the grinding tube axes. The drive mechanism includes an eccentric mounted on one of the carrier parts for imparting to the carrier an amplitude of vibration of at least 15 mm about a central position of the links which is inclined from the horizontal at an angle of 30.degree.-60.degree., preferably 45.degree., a connecting rod connected to the eccentric and extending at a right angle to the central position of the links, and a rubber or helical spring connecting the connecting rod to the other carrier part.

Abstract: A washing machine comprises two frames each mounting a plurality of tubular wash receptacles and arranged to oscillate on a support in opposite directions. Connecting rods resiliently affixed to each frame interconnect the two frames and constitute an oscillating system with the frame and receptacles mounted thereon. A crank drive oscillates the system in the range of the natural frequency thereof. Wash and wash liquid is preferably continuously delivered to each receptacle.