A separating device wherein two belts with different friction coefficients present respective straight portions facing each other and converging at a contact portion. The belts are fed with a number of mail items which are wedged in the V-shaped opening defined by the straight portions and are fed singly through the contact portion by the higher friction coefficient belt and to the input of a follow-up conveyor belt system. The device comprises a barrier of sensors located between the contact po...

The invention relates to a separating apparatus for separating a mixture of materials of different flowability for preparing foodstuffs. The apparatus includes a hollow drum having a perforated circumferential surface around a portion of which is wrapped an endless presser belt forming a compression zone for the material to be processed. The belt is pressed against the drum by a presser roller having a hub body around which a tubular cylindrical body forms the roller surface. The cylindrical bod...

A separating grid (1) for collection and removal of solid particles and objects (4) from running water (2) in a channel (2). The separating grid (1) comprises a stand (9) including a separating unit (10) formed by separating grid bars (11, 12) positioned side by side in such a manner that fixed grid bars (11) alternate with mobile grid bars (12), said grid bars formed with collection and removal means (13). The fixed grid bars (11) are securely attached to the stand whereas the mobile grid bars ...

The invention is directed to separating materials comprising a primary or secondary aliphatic hydroxyl group-containing support coated with at least one covalently bonded polymer, wherein (1) the covalently bonded polymers are bonded to the support by graft polymerization via the .alpha.-carbon atoms of the hydroxyl groups, and (2) the polymer contains identical or different recurring units of the formula I ##STR1## wherein R.sup.1 is H or CH.sub.3 ; Y is ##STR2## R' and R" are each independentl...

The invention relates to separating materials for thin-layer chromatography, based on sorbent-coated supports, the sorbent essentially comprising optically active poly(meth)acrylamides bonded to silica gel, and a binder system comprising a mixture of carboxyl-containing polyvinyl and acrylate polymers.

An apparatus for separating fiber and shiv includes a pinned metering rotor and a pinned separation rotor adapted to rotate with surfaces moving in opposite directions and having fixed bearing locations, the final separation rotor being adjacent a shroud in which are a plurality of slots, and a pinned doffer rotor rotatable in either direction and having a bearing location which is adjustable relative to the separation rotor. A shell feed structure at the intersection of the metering rotor and t...

A device for separating flat parcels from a stack of parcels includes a drawing element that travels in a conveying direction and acts by friction on a parcel to be drawn off from the stack of parcels. A guide wall for the stacked parcels forms a gap with the drawing element for a drawn off parcel to pass through. A support surface supports the stack of parcels and generates a stack pressure in a direction of the drawing element. At least one first nozzle disposed in the region of the support su...

Apparatus for separating a suspension into at least two fractions of different densities, which comprises one or more cyclones, each mounted for rotation about an axis spaced therefrom and oriented transversely of said axis, and each having an inlet adapted to communicate with a source of said suspension, a first outlet for discharging the lighter of said two fractions and a second outlet for discharging the heavier of said two fractions and which is more distant from said axis than the first ou...

Separator for immiscible fluids having a closed end and an outlet spaced along an axis, a separating medium arranged with inlet and outlet faces generally parallel to the axis so that fluid having passed through the medium flows along the axis toward the outlet, and a multiplicity of flow-directing surfaces arranged adjacent one of said faces to direct fluid entering said separator in a direction having a component along said axis toward said closed end.

The invention relates to an apparatus for the separation of edge trimmings, in connection with a pulper. The upper portion of the jacket of the pulper (1) serves as a jacket of a first cyclone (5), a second cyclone (8) opposite in direction being provided within said cyclone (5). When the air flow enters the second cyclone and the direction thereof is reversed, it is essentially retarded, whereby also light paper particles fall into the stock contained in the pulper. The object is to provide an ...