Abstract: A polishing tool comprising a support member, and polishing means fixed to the support member. The polishing means is composed of felt having a density of 0.20 g/cm3 or more and a hardness of 30 or more, and abrasive grains dispersed in the felt. A polishing method and apparatus involving pressing the polishing means against a surface of a workpiece to be polished, while rotating the workpiece and also rotating the polishing tool.

Abstract: An improved indexing vacuum-packaging machine more accurately positions and aligns the upper film relative to the lower film at the sealing station. A video camera replaces a conventional photocell, whereby the braking and concomitant stretching of the upper film at the sealing station need only be performed only every few indexing cycles, whereby shaking and jerking of the machine is negated as compared to a conventional vacuum-packaging machine. The video camera may use any portion of the printed matter on the upper film as a target for determining when to brake the upper film for the subsequent stretching thereof, without having to rely solely upon the hithertofore-used one black target-box imprinted on the upper film.