Abstract: An apparatus for doctoring a moving surface includes a blade holder component extending longitudinally across the moving surface and carrying a doctor blade. A support component is parallel to and supports the blade holder component. A first operating mechanism rotatably urges the doctor blade in a doctoring direction into contact with the moving surface, resulting in the doctor blade being acted upon by a reactionary thrust force in the plane of the doctor blade and a reactionary rotational force in a direction opposite to the doctoring direction. A pair of mutually opposed parallel guide rails are provided on one of the components, and rotatable rollers are spaced along the length of the other of the component.

Abstract: A fourdrinier table assembly of a length to underlie a substantial portion of the forming length of a traveling fourdrinier wire in a paper making machine, and having a plurality of supporting rails carried by supporting structure in side-to-side spaced relation to one another and arranged to span the forming length portion in the machine direction below the fourdrinier wire, a series of elongate dewatering foils being carried by and extending in cross machine direction across the supporting rails in spaced relation to one another along the length of the rails and adapted to act in dewatering relation with respect to the underside of the traveling fourdrinier wire. The foils are retained adjustably and replaceably on the rails. The supporting structure for the rails comprises beams extending in cross machine direction and spaced from one another in the machine direction.