Article transfer device having various transverse dimensions and system comprising such devices

A device for transferring articles, each having a substantially cylindrical portion of transverse size lying in a range from a minimum size to a maximum size, the transfer device comprising a transport structure carrying cantilevered-out gripper clamps, each comprising first and second jaws extending on respective sides of a longitudinal axis of the clamp, which jaws are movable relative to each other to bear against the cylindrical portion of an article and keep a central axis of the cylindrical portion of said article intersecting said longitudinal axis of the clamp regardless of the transverse size, the device being characterized in that the jaws have ends extending in a common plane, the jaws being provided with facing bearing surfaces so that together the facing bearing surfaces form together a V-shape for centering the cylindrical portion and the jaws being of a length such that said ends extend set back from a transverse axis of the cylindrical portion that is perpendicular both to the longitudinal axis of the clamp and to a central axis of the cylindrical portion, and in that said end of the first jaw is extended by a first finger that extends offset from the plane and that has a bend so as to form a V-shape with said end of the first jaw and bear against the cylindrical portion beyond the transverse axis.