Abstract: Associated to the first product of each group or slug of products being formed is a first engagement element which follows the movement of advance of said first product, preventing it from falling forwards in the direction of advance. In such conditions, the products are made to advance according to a stacking path that is substantially horizontal, setting them up against the first product, and thus determining the formation of groups or slugs of products and counting the number of products stacked. When the number of products stacked reaches the desired value, the last product in the group is engaged by a second engagement element which exerts an action of thrust in a forward direction on the slug of products thus formed, so causing separation thereof from the first product of a new slug being formed in the stacking structure. The stacking operation is performed on the products, which are set on edge after being tipped starting from a previous substantially horizontal position of advance.

Abstract: Groups comprising a specified number of articles separated by intervals of separation are formed from an incoming flow of articles. The process involves interacting with the flow of articles in such a way as to bring about, in a coordinated manner: a slowing action on at least one article situated in the forwardmost position of its particular group, and an accelerating action on at least one article situated in the rearmost position of its particular group.

Abstract: A device for cutting film-like material in a shearing action by a blade and a counterblade provided with respective cutting edges. The blade has first and second ends. Movement of the blade is controlled such that the first end and the second end move along paths that are different from, but substantially parallel, to one another. The blade moves between a separated position and a closed position. In the separated position, the cutting edges define a space through which the film-like material may advance, and the distance between the respective cutting edges is not constant along the entire blade, with the second end of the blade being closer to the counterblade than is the first end of the blade. In the closed position, the blade and the counterblade are closed on one another after cutting the film-like material with a gradual cooperative movement of the cutting edges.

Abstract: In order to convey articles in a conveying device incorporated, for example, within an automatic packaging plant, a first conveyor and a second conveyor are used, the first one being arranged upstream of the second one in the direction of feeding of the articles conveyed. The conveyors have respective conveying directions forming between them an angle equal, for example, to 90°. The articles are received on the second conveyor in a positive and unconfined conveying condition.