Abstract: Disclosed is a system for utilizing existing information carriers used for advertising purposes or for directing traffic in shopping centers, leisure facilities and similar commercially used facilities which comprise goods stores and possibly restaurants or similar supply structures that are accessible and connected to each other via corridors and in which facility-owned means of transport (2) are made available to the public for transporting purchases and/or other objects. A plurality of information carriers is disposed across the surface area of the commercially used facility. A triggering device issuing at least one, preferably a number of different advertisements is assigned to said information carriers in addition to a triggering device issuing a standard message. The triggering device of the information carriers (7) can be switched over by means of sensors, each of which emits a signal that is characteristic of a specific transport vehicle.

Abstract: A delivery cart including a chassis, one or two castors pivotable about a vertical axis and two support wheels for supporting the chassis on a ground, a substantially vertically extending displacement stirrup attached to the chassis, a gearless, load-actuated reversible electric motor, formed integrally with the respective wheels, and a control system for controlling power supply to the electric motors and including sensors for sensing a displacement force or a steering force applied to the cart, and a free-programmable control unit for controlling power supply to the electric motors, in accordance with the one of a displacement force and a steering force.

Abstract: An advertisement system for an airport facility having a plurality of gates connected by passageways and aisles and provided in departure and arrival buildings with restaurants and shops, with information carriers emitting written and picture messages and provided on information boards, and with a plurality of luggage pushcarts for transporting luggage of airport passengers inside the facility, the advertisements system including a plurality of advertisement panels each having a standard advertisement message and at least one different advertisement message stored in the advertisement panels, and elements which arbitrary change the messages so that one of the advertisement messages is displayed at a time.

Abstract: A push luggage cart including a rigid load-bearing frame defining a longitudinal luggage-carrying surface inclined in a direction opposite to a forward movement direction of the cart, a front steering roller and two rear support rollers, two upright bars for supporting a push handle, and a front connection part and two rear connection parts, all having connection members for supporting the frame on the front and rear rollers, with the frame including hollow profile connection sections form-lockingly engaging the connection members of the front and rear connection parts.

Abstract: An apparatus for processing unvulcanized rubber utilizing intermeshing grooved rollers. To obtain rubber material having an optimally jagged surface, at least the cutting disks of one of the grooved rollers are additionally provided with teeth.