Event and Pattern Detection over Streams.

Sealing and severing equipment for packaging articles like candy pieces and the like in flexible packaging sheet material. The equipment including a table extending between longitudinal and transverse sealing means where the bottom ends of sheet material draped over articles sequentially delivered to the table inlet are subsequently longitudinally sealed and then transversely sealed and severed at the opposite ends of the wrapped articles. A pair of horizontally spaced confronting conveyors are provided on opposite longitudinal sides of said table and carrying corresponding spaced pairs of confronting fingers to be moved along opposite sides of and along the length of said table. The confronting pairs of fingers deform the packaging material inward to an extent to be located behind an article to push the same on the table or in front of an article to limit forward movement thereof and thereby to define article confining spaces which assure the delivery of said packaging material encased articles properly positioned to said sealing and severing means to avoid crushing or damaging the articles and means for moving said conveyors to deliver sequentially said pairs of fingers to first position a pair of said fingers behind an article delivered to said table inlet to define the rear margin of an article confining space and to push the same forward along said table and then to position a pair of said confronting fingers in front of the article behind the latter article to limit its forward movement and to establish the front end of an article confining space.