Abstract: A printing couple in a printing machine is comprised of at least three cylinders, a forme cylinder, a transfer cylinder and a counter-pressure cylinder. The counter-pressure cylinder forms a printing location or point in cooperation with the transfer cylinder. The transfer cylinder is mounted in at least one lever which can be pivoted about an eccentrically pivoting axis in relation to the rotational axis of the forme cylinder. When the three cylinders are in a print position, a connecting plane through the axis of rotation of the forme cylinder and the pivoting axis of the lever forms an angle of between 25° and 65° with a plane through the axis of rotation of the cylinder forming the printing point.

Abstract: A electrographic element (10) having a base substrate (12), a conductive layer (14), a single, integral dielectric/adhesive/release layer (16) upon which an image is deposited, and an optional final substrate (20) and a method of making the electrographic element are disclosed. The single, integral dielectric/adhesive/release layer is preferably a co-polymer of polyvinylchloride and polyvinyl acetate. A method of making the electrographic element is also disclosed.

Abstract: A randomizing web former is provided for producing webs with greater degrees of isotropy than heretofore by including both a carding element, such as a worker roll or a carding segment, and an aerodynamic, centrifugal randomizing web former, employing a jamming action and then free flight of the web to randomize, both on the same toothed cylinder. Usually, the fibrous flock is worked into an array of axially parallel fibers by an assemblage of sequentially arranged carding cylinders and cooperating carding elements such as carding worker rolls and or stationary carding segments similar to flats but of complementary arcuity to the cylinders. Thereupon the web is moved to a toothed roll having both a carding element and a web former either in that sequence or combined so as to act sequentially or concurrently. The resultant randomized web is then doffed.

Abstract: In conjunction with a randomizing web former is disclosed means for regulating the pressures subsisting within the jamming slot of the randomizing web former formed between the arcuate toothed surface of a carded staple fiber bearing cylinder and a confining surface mounted adjacent thereto. The regulating means includes a housing one wall of which is perforate so as to provide gaseous intercommunication with the interior plenum thereof, in which resides a pressure sensing element interconnected with a control element such as a preprogrammed computer. The plenum intercommunicates with a pressure adjusting device, and the latter is operatively interconnected with the control element.

Abstract: This disclosure relates to a novel method of and apparatus for producing an open non-woven fabric from fibrous material by delivering the fiber flocks through a carding zone during which time the fiber flocks are loosened and spread to form a non-woven fabric, subjecting the spread-out non-woven fabric to a jamming effect in a jamming zone downstream of the carding zone to form a non-woven fabric of matted fibers, and releasing the jamming effect to form an open non-woven fabric.

Abstract: This disclosure relates to apparatus for separating card strips, such as fiber neps, fiber adhesions, short fibers, foreign particles, waste fibers and the like from fibrous material during a carding operation in which a rotating carding cylinder has means for carrying fibrous material therewith, a strips roller adjacent the carding cylinder defining therewith a gap through which the fibrous material is carried by the carding machine, and the strips roller including means for forming carding strips from the fibrous material which are subsequently removed therefrom.

Abstract: Apparatus for feeding fibrous material to a carding machine including a rotatable roll having an exterior cylindrical surface which with first and second surfaces in opposing relationship thereto defines a curved trough converging from an entrance end portion thereof in a direction of travel of the fibrous material through the trough, a tear-off point upstream of an exit end portion of the trough, the radius of curvature of the first and second surface being identical and corresponding to the radius of the first surface, and an imaginary straight line through the tear-off point being in tangential relationship to the second surface and the cylindrical surface.

Abstract: This disclosure relates to apparatus for cleaning natural fibers of their contaminants by passing the same through a pair of rotary drum sieves each having a porous peripheral surface subject to a vacuum whereby natural fibers adhere to the porous peripheral surfaces and contaminants are drawn therethrough, the drum sieves being disposed with portions of their peripheral surfaces defining a throat through which the fibers pass, and means contiguous the throat for cutting off the vacuum effect of the first drum sieve whereby the fibers are transferred from the first drum peripheral surface to that of the second drum.