Polishing machines incorporating rotating plate
First Claim
1. In a polishing machine, of the type comprising a rotating workpiece-holder applied by force against a plate itself driven in rotation and sprayed with a suspension of abrasive, the upper face of the plate is hollowed out with a groove of circular section which defines two distinct concentric zones, separated from each other by a removable collar forming screen and of which the base is retained in the said groove, the latter being adapted to collect the slurries and abrasive liquids and to evacuate them through perforations.
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Accused Products
Abstract
The invention relates to improvements in polishing machines incorporating a rotating plate. The upper face of the rotating plate is provided with a groove of circular section, in which is removably retained the base of a collar or screen, which defines on said plate two separate zones for rough-machining and finishing. The invention also relates to the mode of heat-conditioning the plate with the aid of nozzles disposed in the bottom of the tank for spraying a liquid against the lower face of said plate.
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Citations
6 Claims
- 1. In a polishing machine, of the type comprising a rotating workpiece-holder applied by force against a plate itself driven in rotation and sprayed with a suspension of abrasive, the upper face of the plate is hollowed out with a groove of circular section which defines two distinct concentric zones, separated from each other by a removable collar forming screen and of which the base is retained in the said groove, the latter being adapted to collect the slurries and abrasive liquids and to evacuate them through perforations.
Specification