Abstract: An apparatus for transferring containers of different dimensions along a predetermined path defined by a conveying mechanism provided with camming members at selected points along the path comprising housing means being transportable along the predetermined path, gripping means including at least one pair of first and second gripping elements connected to said housing and being movable between a gripping position whereat a container is firmly and positively gripped, and a non-gripping position whereat the container can be freely moved from between said elements; and actuating means including separate actuating members, each connected to corresponding ones of said gripping elements and being independently and continuously engageable with the camming members for enabling independent and/or simultaneous movement of the gripping members between the gripping and non-gripping positions.