Abstract: An apparatus for cutting a cellular plastic web emerging from a web forming machine into a plurality of predetermined lengths is described. A cutting device including a plurality of spaced filaments is provided on a movable carriage slidably supported on a support stand. The filaments extend transversely of the carriage and the direction of the web emerging from the forming machine. The carriage is mounted on the stand for reciprocating sliding movement and in one direction of traverse moves in synchronism and in the same direction as the web. The filaments move alternately toward and away from the carriage to cut the web during successive synchronized movements of the carriage and web.

Abstract: An automatic-tensioning arrangement for roller driven belts of a cellular plastic forming machine is described. Sensor means are provided for detecting lateral movement of the belts on the support or drive rollers thereof and for generating a control signal in response thereto. The control signal from the sensor means is applied to a hydraulic tensioning device which displaces the drive rollers longitudinally of the belts to automatically tension the belts in response to detected lateral belt movement. A hydraulic tensioning device is provided for each end of each drive roller so the respective ends can be moved separately from one another. Accordingly, by selective movement of the respective ends of the rollers the belts can be guided back to normal desired position in response to a control signal from the respective sensor means.

Abstract: The present invention relates to a disinfectant of the so-called iodophor-type, i.e. wherein iodine is complexed to a carrier. In accordance with the invention iodine is complexed to a carrier forming a three-dimensional lattice, kept together by covalent bonds, and being insoluble in water, but capable of swelling in water to form a gel. The new iodophor according to the invention can be used for technical, cosmetical and medical disinfection.

Abstract: A room air conditioning apparatus for exchanging heat and/or moisture between fresh atmospheric air entering the room from the outside and consumed air being discharged from the room combines high capacity with relatively small dimensions, low air velocities and small pressure drops so as to minimize generation of disturbing noise. Within a casing, a motor-driven regenerative-type rotor passes through two air stream zones in the first of which is a motor-driven fan for discharge of consumed room air into the outer atmosphere and in the second of which is a motor-driven fan for supply of fresh air to the room from the outer atmosphere. In the rotor, the two air streams exchange heat and/or moisture content so that the supply of fresh air is given a desired, predetermined temperature and a desired moisture content.