TAILED DESCRIPTION OF THE INVENTIONA centrifugal device is schematically illustrated in FIG. 1 This centrifugal device, denoted in its entirety by the reference numeral 1, is adapted for supplying preforms 2 made of thermoplastic material such as PET so that the preforms 2 received in bulk in the device (preforms 2a in FIG. 1) are delivered, at the outlet of the device, horizontally-laid and align