Abstract: A grinding device for the flats of a card comprises elastically bendable elements which enter between the card clothing points, brush across the lateral surface of the points and thus grind them, whereat the material that has been ground off is removed by a suction means. The grinding device may be portable so as to be used on different card machines. A control system may be provided to engage and operate the device in an interrmitten manner.

Abstract: An apparatus and method for use in a cleaning process of textile fibers, and for use in conjunction with an opening roller. The apparatus includes a plurality of separating blades and guide elements which are spaced from the opening roller during the cleaning process. An assembly is provided for adjustably positioning a plurality of the separating blades and the guide elements during the cleaning process. The adjustment of the spacing of the separating blades and the guide elements from the opening roller can be accomplished remotely, either manually or by a motorized drive. A lever unit enables appropriate connection for effecting the various adjustments of the separating blades and the guide elements. The guide elements and the separating blades can be controlled and adjusted to suit the fibers to be processed.