Abstract: Apparatus for applying closures to containers includes a plurality of cam followers, closure tightening mechanisms associated with the cam followers to tighten closures on the container, a cam assembly having an annular cam groove for receiving the cam followers, and a cam insert positioned along a portion of the length of the cam assembly The cam insert is moveable between a first position and a second position to change the path of the cam followers between a first path and a second path, where the first path causes the cam followers to move relative to the cam assembly at a first rate, thereby causing the closure tighteners to tighten closures on the containers at a first rate, and the second path causes the cam followers to move relative to the cam assembly at a second rate, thereby causing the closure tighteners to tighten closures on the containers at a second rate.

Abstract: A mechanism for pre-tightening closures on containers in a container filling and capping system is disclosed. The closure pre-tightening mechanism includes a hold down plate for exerting a downwardly directed force against closures which are loosely deposited upon the containers by a closure applying mechanism. The hold down plate is supported in a floating manner, permitting pivoting or other transverse movement to accommodate misalignment with the containers. A vertically serrated rail is provided on the lower surface of the hold down plate for engaging the outer surfaces of the closures and rotating them relative to the containers. A reaction rail is also provided on the lower surface of the hold down plate for engaging the opposed outer surfaces of the closures while they are engaged with the serrated rail.