Transport apparatus for roving bobbins for a group of spinning machines

A transport apparatus for a plurality of roving bobbins for a group of spinning machines comprising:

• a closed circulating path for each of said spinning machines;
• a plurality of suspended roving bobbin carriages movable independently of each other each equipped either with full or empty roving bobbins which are movable along each of said closed circulating paths;
• a loading station from which a plurality of said full roving bobbins are deliverable;
• a closed transport path which runs through said loading station which replaces at least one of said empty roving bobbins on said suspended carriages with at least one of said full roving bobbins;
• a plurality of connecting paths connecting said transport path with each of said circulating paths so as to remove said suspended carriages with said empty roving bobbins from and feed said suspended carriages with said full roving bobbins to said circulating paths;
• a switch controllable depending on the filling state of the approaching one of said suspended carriages being positioned at each branch of said connecting paths with said transport path or with said circulating paths;
• a plurality of sensing devices including at least one weighing device distinguishing between said suspended carriages with said full roving bobbins and said suspended carriages with said empty roving bobbins connected to said switches for control thereof;
• and
• a plurality of drive motion devices each comprising an electric motor mounted on each individual one of said suspended carriages which keep said suspended carriages in constant circulation on said transport path and said circulating paths.