| 摘要 |
A device for applying and removing threaded caps to and from threaded filler necks of containers includes a centering device, a rotatable grasping member mounted within the centering device for grasping a cap and turning the cap to thread it relative to the filler neck, a driver within the centering device for rotating the grasping member, and a resilient arrangement in a frame to resiliently hold the centering device relative to the frame and permit the centering device to move axially and radially relative to the frame. The frame and the centering device have sufficient clearance between them to permit axial and radial movement of the entering device relative to frame.
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