side of the compressing station 14 the trays or packages 30 including the premiums 32 are inserted into the cut outs 26 of the boxes 24 such insertion may be achieved manually through the use of skilled workers not illustrated or automatically through the use of a pick and place mechanical or robot arm 118 in either event it will typically be preferable to include one or more bins 120 or other supply device such as a conveyor or stacker both not illustrated disposed on or adjacent the front longitudinal frame member 40 of the conveyor assembly 20 to hold and maintain a supply of the packages or trays 30 referring to now to fig9 and 10 the conveyor assembly 20 next moves the cartons or boxes 24 with the inserted premium trays 30 to the cover applying and sealing station 18 the cover applying and sealing station 18 includes a plurality of vertical supports 122 which may be attached to the longitudinal frame members 40 or otherwise supported the right vertical supports 122 include height adjustment assemblies 124 such as cooperating slots and thumbscrews which adjustably vertically position and pivotally secure a restraining plate 126 the restraining plate 126 extends across the width of the conveyor assembly 20 and between the vertical supports 122 and provides a down force to fully or substantially fully seat and retain the premium trays 30 in the.