| 摘要 |
Apparatus for supporting a container in a vertical position by the finish portion thereof, includes a plurality of chuck jaws pivotally movable between an outwardly spread open position and a radially inward closed position wherein the jaws substantially completely enclose the container finish and support the container by it. The jaws are movable to the closed position by virtue of the fact that their centers of gravity are disposed radially outwardly of a central pivot. A vertically movable annular sleeve is adapted to engage and surround the jaws to positively hold them closed. The jaws are hung on pivots and, when the sleeve is moved out of engagement from them, they can be urged open by a direct acting cam or by tilting of the chucked container within the jaws in order to release the container. The chuck body which pivotally mounts the jaws is capable of receiving jaws of different shapes and sizes to hold similarly differing containers. Spinning apparatus is also provided for opening the jaws at a loading station. |
