Abstract: A method of supplying cartons to a carton-packaging machine, comprising the steps of providing flattened cartons stacked in a line in a container package so that two cutouts on the cartons are lined to form two grooves on two parallel sides of the cartons; inserting two bar-shaped forks into the grooves respectively in the stacking direction of the cartons; pressing the cartons to be together along the inserting direction of the bar-shaped forks by pressers, which are adjustable for a different stacking amount of the cartons, so that the cartons are placed at the central portion of the bar-shaped forks; pulling out the cartons from the package with the bar-shaped forks; and supplying the cartons to the carton-packaging machine with the bar-shaped forks.

Abstract: Disclosed is a film perforator having a punch unit, a pad roller and a feed roller which are disposed at the upstream side of the punch unit and support a film by nipping it between them, and a sprocket which is disposed at the downstream side of the punch unit and comes into engagement with punch-finished perforations, the sprocket and the feed rollers are connected by a pulley and the line speed of the sprocket is adjsuted to be a little higher than that of the feed rollers so that the film is caused to slip from its nipped position between the feed roller and the pad roller, whereby the film is exerted with backward tension so as to keep its proper flatness.