It comprises cavities (6) delimited by front, back and side walls (116) having an open bottom which allows the passage of articles (A), supporting/stop configurations for the article (A) in order to confer it a predetermined orientation when it falls through said bottom, and chutes for receiving and carrying the articles (A) under the cavities (6), travelling together in a closed circuit, said supporting means being interposed between the bottom of each cavity (6) and respective ducts to temporarily retain the articles (A) in said cavities (6) during part of said circuit, several of said supporting/stop configurations, walls, parts of walls and/or combinations thereof (126, 136) being connected to shifting elements so that they may be introduced into/withdrawn from said cavities (6) to adapt them to different articles (A). IMAGE
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