Abstract: A device for treating a web or the like adapted for screen printing including a magnetizable wiping roller or squeegee mounted on a working carriage, a printer's blanket carrying the web, a magnetic beam disposed below the printer's blanket, and rails rollably supporting the magnetic beam. The magnetizable wiping roller is urged towards the web through movement of the working carriage in the longitudinal direction of the printers blanket, and guided thereover by the magnetic beam in the course of printing on the web. The web is stationary during treatment. An electric motor is provided for moving the magnetic beam and the motor drives at least one drive wheel engageable with the rails for moving the beam. Speed and position of the wiping roller is determined by a sensor arrangement responsive to deviation of the working carriage from the magnetic beam path.

Abstract: An arrangement on screen printing machines for interchangeable holding and lengthwise tensioning of rotary screens which have face-side end sections that can be connected to rotary holding sections. The holding sections are mounted on nonrotary bearing housings which are connected to at least one lengthwise carrier. The latter is located on the outside of the rotary screen, parallel to the screen axis, and fastened to the machine frame. The rotary holding sections enclose the nonrotary bearing housing peripherically from the outside. The bearing housings are connected to the lengthwise carrier by cross arms. The nonrotary bearing housing comprises a nonrotary hollow cylinder which projects beyond the rotary holding sections in axial, lenthwise, direction of the screen axis. The hollow cylinder, furthermore, may have at least two cylinder sections and a ring-shaped elastomer intermediate member located between the cylinder sections.