A sheet braking mechanism for a sheet punching andor embossing machine for the braking a sheet in a processing station of the sheet punching andor embossing machine, includes a movable pneumatic sheet brake and a movable carrier, on which at least one brake brush is mounted. One of the trays has an opening edge stepped such as to slope in the directions of displacement and a tray disposed over the above has a stepped tray floor. The second blade extends to a second tip and has a second cutting edge and an outer edge. The card scrambles the video content and stores it in the computer’s memory. The spatial filter blocks a portion of the diverging reflected laser beam from passing through the aperture and returning to the laser beam output. The second part has a cylindrical periphery wall and a water tight inner section bordered by the periphery wall and the first part has a flange plate portion extending radially over the periphery wall of the second part, in which the first part and the second part are removably attached to each other.