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: A bypass for a car of a circuit cable railway system, which is positioned at a turn-about station of the system between the incoming and outgoing lines of at least one revolving conveying cable. The bypass includes coupling points, disposed on incoming and outgoing tracks of the station, at which the car is decoupled from the conveying cable when entering the station and coupled to the conveying train cable when exiting the station. A conveying apparatus drives the car, which has been decoupled from the conveying cable, at a feeding velocity around the station on a station track, and accelerates movement of the car on the station track to enable the car to recouple with the conveying cable at the coupling point when exiting the station. The station track has an incoming portion at the location where the car enters the station and an outgoing portion at a location where the car exits the station.

Abstract: A rescue vehicle 1 for a cable railway is conveyed above the passenger cars 2.sub.B, 2.sub.T on cable 4 in the direction of travel F. Its cabin 3 is hung on suspension tackle 5 which rides on the cable 4, and which can swing in the manner of a pendulum (5.sub.1). The rescue cabin 3 can be released from the suspension tackle 5 and lowered on at least three triangulated hoisting cables (6) to a rescue position at the level of a stranded passenger car 2.sub.B in order to pick up its passengers. A cable winch 7 with a single shaft and winches is mounted on the roof of the cabin, to synchronously wind in and pay out the hoisting cables.

Abstract: A rope guide system and for an aerial ropeway includes a haulage rope that travels along a path between two stations, and comprises two driving wheels 4.sub.1, 4.sub.2 disposed at one of the stations and laterally offset with respect to each other, which convey the haulage rope. Two inner deflector wheels 6.sub.1, 6.sub.2 direct the rope to cross over itself at a predetermined location to form inner and outer rope loops, and cooperate to direct the inner rope loop toward and away from the two driving wheels. A first reversing wheel 5.sub.1 is disposed at the other station, and the inner rope loop passes around it. Either two additional reversing wheels 5.sub.2, 5.sub.3 or a second, larger reversing wheel 5.sub.2, about which the outer loop passes, is/are disposed at the other station. Two outer deflector wheels direct the outer rope loop toward and away from either the two additional reversing wheels or the second reversing wheel.

Abstract: A multi-cylinder piston pump of rotary slide valve design for conveying free flowing materials, in particular concrete, comprises a rotary slide valve (33, 36) connected to the piston (48, 49) and their cylinders (44, 45) with which it pivots. The feeder hopper (4) of the pump is equipped with a stirrer (5) which is actuated only when the pump is in operation. The rotary slide valve (33, 36) is located outside the feeder hopper (4). During the delivery stroke, the axis of the delivery cylinder is coaxial with the longitudinal axis of the adjacent conical pressure pipe (18). This pump is of simpler design than known pumps and is therefore more reliable and requires less maintenance.

Abstract: When injecting concrete, the nozzle of the injecting device must perform a circular motion in order to avoid the formation of so-called beads. Since this is a laborious operation, the invention proposes an injecting device whose nozzle is provided with said motion by a mechanical drive. However, the feeding hose is not to perform said tumbling motion in order to the hazard of buckling, among other things. For said purpose serves a hydraulic motor (2) whose eccentric (1) provides the hose holding means (3) with a circular tumbling motion, said motion taking effect on the end of the feeding hose (6), said end being secured in hose holding means (3), and thus on the nozzle (7), whose mouth describes a circular motion. The hose holding means (3) is secured against twisting by the cross joint shaft (4).

Abstract: The apparatus of this invention feeds coarse-grained, lumpy dry materials from a hopper (1) to an outlet chamber (19) into which materials are blown. It has two rotors (5, 15) that rotate in unison about a common vertical axis and have circumferentially arranged material chambers (24, 25) that are coaxial with one another. A plate (7) between the two rotors (5, 15) has a passage (8) with which the chambers (24, 25) of the rotors (5, 15) can be brought into register by rotor rotation. The upper rotor (5) has a plurality of air chambers (26, 27) which receive pressure air conducted through the passage (8) from each of the chambers (25) of the lower rotor (15). A connecting channel (28) serves to increase the pressure on the outer side of the chambers (25) of the lower rotor (15). Multiple openings into the atmosphere discharge the chambers (24, 26, 27) of the upper rotor (5). With this arrangement the pressure drop .DELTA.

Abstract: Disclosed is apparatus for automatically lining a vessel. With a template inside the vessel, pouring and ramming stations are disposed within the annular space defined by the template and vessel for rotation about the central axis of the vessel. The ramming stations include rams movable in a radially inward direction to compact the lining material at the bottom of the vessel and movable outwardly to compact the material forming the side walls of the vessel.

Abstract: A method of molding articles of plastic having an expanded plastic cellular core using a closable and sealable mold having a sealed mold cavity and including at least one mold core extending into the cavity, comprises, directing the plastic melt material containing a foaming agent into the mold cavity under pressure so as to form a flow front of the melt which progresses through the cavity and which spreads out in all directions and flows around the mold core and tends to form a pocket of gas in the vicinity of the mold core, and venting the cavity adjacent the core so as to remove gas from any gas pocket which may be formed in the vicinity of the core. The apparatus for carrying out the invention includes a vent line which extends from the cavity in the vicinity of the mold core out of the cavity and which has a control valve for opening the vent line to vent any gas which forms in the cavity and which might tend to form a pocket after the buildup of a pressure in the mold cavity.

Abstract: Disclosed is apparatus for automatically lining a vessel. With a template inside the vessel, pouring and ramming stations are disposed within the annular space defined by the template and vessel for rotation about the central axis of the vessel. The ramming stations include rams movable in a radially inward direction to compact the lining material at the bottom of the vessel and movable outwardly to compact the material forming the side walls of the vessel.

Abstract: Apparatus for repairing electric furnaces, ladles or the like while they are hot and which includes a centrifugal slinging machine that can be lowered into the hot furnace. The machine includes a centrifuging wheel which can deliver lining repair material radially outwardly and against the interior wall of the furnace. The centrifugal delivery portion of the machine can be selectively divided into sectors so that repair material can be selectively dispersed only against that portion of the interior furnace wall that needs repair or alternatively, the machine can deliver material to the entire circumference of the interior of the furnace. The machine has adjustable sliders which are provided around the circumference of the machine to selectively distribute the material around the interior of the furnace and the sliders are infinitely variable in their adjustment, and radial director vanes act in cooperation with the sliders.

Abstract: Apparatus and method for reducing interior surface roughness and improving interior surface gloss in extruded tubular articles made from foamed thermoplastic materials.

Abstract: A method for producing an improved molded thermoplastic polymeric resinous article comprising: introducing a heat plastified thermoplastic polymeric resinous material into a mold in the presence of a finely divided inorganic material; cooling said heat plastified thermoplastic polymeric resinous material; removing from said mold said cooled mold shaped thermoplastic polymeric resinous material having finely divided inorganic material incorporated therein.

Abstract: A method for producing an improved molded thermoplastic polymeric resinous article comprising: introducing a heat plastified thermoplastic polymeric resinous material into a mold in the presence of a finely divided inorganic material; cooling the heat plastified thermoplastic polymeric resinous material; removing from the mold the cooled mold-shaped thermoplastic polymeric resinous article having finely divided inorganic material incorporated therein.