SUBSTRATE TRANSPORT MEANS FOR SKIN PACKAGING MACHINES

A flat apertured endless belt has an upper stretch riding on air intake grills. Its apertures register with the air intakes to apply suction to the underside of substrate on it. Substrate lengths are impositively driven toward said stretch, faster than it moves, along a feed table having its top surface parallel to but above that of said stretch. Downstream from the table a hold down finger forces the medial portion of each substrate length into tractive engagement with the belt while its side edge portions are supported by rails coplanar with the table top, bowing it to an upwardly concave transverse curvature which insures that the length behind it will edgewise abut it.