Abstract: A transfer system for removing articles from trays includes a supply conveyor and a discharge conveyor A separation and transfer arrangement, including an article transport member, is interposed between a downstream end of the supply conveyor and an upstream end of the article discharge conveyor. The article transport member. Which may be a vacuum conveyor, acts on an upper end defined by each article to suspend the articles therebelow, and advances the articles from the downstream end of the supply conveyor to the upstream end of the discharge conveyor, which are at generally the same elevation. A tray transport member extends from the downstream end of the supply conveyor, and advances the trays downwardly in an upstream-to-downstream direction so that the trays are positioned below the upstream end of the discharge conveyor as the articles are deposited on the upstream end of the discharge conveyor by the article transport member.

Abstract: A row sweep system is configured to allow a sweep pusher arm such as a roller to travel around a station such as a row-forming station of a palletizer at a substantially constant velocity. The row sweep system may include a pair of semi-concentrically continuous drive members such as inner and outer drive chain loops that are connected through inner and outer pivot arrangements to the sweep pusher arm. The inner pivot arrangement may define a slide pivot that allows for varying an effective length of a driven arm defined between the inner and outer pivot arrangements to accommodate movement of the sweep pusher arm through a corner while maintaining a substantially constant velocity.