Abstract: A spray machine having a driven rotor unit which carries, at its periphery, a plurality of bushings that are open at both sides. The bushings are arranged such that their axes point in a direction with at least one directional component parallel to an axis of the rotor unit. The bushings include a filling opening (6) at a filling arrangement (20), a pressurized air inlet opening (5), and an ejection opening (3) which is located opposite to the pressurized air inlet opening (5) relative to a direction of the bushing axes. Each of the openings are arranged so that, when the rotor unit rotates, the openings of the bushings pass over the openings. Sealing plate arrangements are provided so that the surface pressure between the sealing plate arrangements and the rotor unit in an area including the filling opening is lower than the surface pressure of the sealing plate arrangements to the rotor unit in an area including the pressurized air inlet opening and the ejection opening.

Abstract: A sealing plate for a rotor unit of a spray machine to seal the rotor unit has with respect to the stator. The rotor unit has a plurality of surrounding bushings that have at both sides thereof. The spray machine includes a filling opening, a pressurized air inlet opening and an ejection opening. The openings are arranged such that rotation of the rotor unit causes the bushing openings to pass over the air inlet and injection openings. The sealing plate includes at least one opening and an elastic plate. A metallic stripping off element is disposed adjacent the at least one opening.

Abstract: The invention involves a device and a process which can be employed for sealing building branch lines (3b) leading from a building or a collecting manhole directly to a sewer main (4) using a relining process in which liners (1) made of self-hardening/self-curing sealant are used. In the process according to the invention, a pipe repairing machine (6) is employed which features a rope guiding device (10) at its front end (14), said rope guiding device (10) being comprised of a roller mount (15) to which a deflection pulley (5) and a retaining roller (16) are affixed. The pipe repairing machine (6) into whose rope guiding device (10) the rope (7) to which the liner (1) is attached is threaded is positioned inside the sewer main (4) at the building branch line junction (2) in such a manner that the rope (7) does not come into contact with the building branch line edge (9) facing the pipe repairing machine (6) when taut.