Abstract: A locking arrangement secures together first and second panels. The arrangement includes locking tabs (54, 56, 58) projecting from an end edge (64) of the first panel (12) and locking slits (50a, 50b, 50c) in the second panel (28). Each locking slit is provided for receiving a respective one of the locking tabs. The locking tabs and the locking slits are engageable by relative sliding movement with each other. At least one of the locking tabs and locking slits is configured to secure the first and second panels in a first overlapping position while at least another one of the locking tabs and locking slits is configured to secure the first and second panels in a second overlapping position.

Abstract: A container erecting system includes a top engaging surface and a bottom engaging surface that fold a collapsed container such as a carton. The top engaging surface moves at a first speed in a downstream direction and the bottom engaging surface moves at a second speed in the downstream direction. The first speed is different from the second speed.

Abstract: A tape perforating head assembly for scoring a perforated tear line in a piece of packaging tape joining article carriers together includes a headpiece, a plurality of perforating blades supported on the headpiece parallel to and adjacent one another, each perforating blade having a series of serrated teeth constructed and arranged to score the perforated tear line in the packaging tape. Each perforating blade is supported on the headpiece for reciprocal movement with respect to one another into a normally extended position away from the headpiece, and into a retracted position on the headpiece. The tape perforating head assembly also includes a spring positioned within a bore in which a guide pin is received, a pair of guide pins, and a pair of bores being provided for each perforating blade.