an empty tube return track and a plurality of transport tracks each extending through one winding head of the bobbin winder transversely between the supply and return tracks the entrance region of each transverse transport track is closable by selectively operable blocking mechanism disposed in operation to permit empty pallets to enter the transverse transport track while pallets equipped with cops are shunted in this manner the transverse transport tracks serve as a storage device for empty pallets which provides the advantage that at the completion of a batch the time needed by the bobbin winder to properly end the batch is shortened and hence the machine 39 s efficiency is increased application_number US 34334794 A description fig1 shows a perspective view of the pallet transport system 21 of a bobbin winding machine 25 which for the sake of simplicity is shown only schematically the representation of the bobbin winder 25 is essentially limited to the power supply and operating unit 22 disposed at one end of the machine as well as to positional indications for the multiple aligned winding heads a b y of the machine a pallet transport system 21 is arranged on a chassis identified overall at 20 for delivering yarn wound bobbins to and removing unwound empty bobbin tubes from the several winding heads.