Abstract: A wall-mounted foldable airing or carpet-beating stand comprising an attachment bracket secured to the wall to support the inner end of a bar which in position of use of the stand assumes a horizontal position, and two support legs pivotally mounted in pivot points at the outer end of the bar. The bar is mounted for pivotal movement about a horizontal shaft in the attachment bracket. The shaft is displaceable in the vertical direction along slits or channels formed in the attachment bracket from or towards a lower operational position of the bar and an upper position of rest. In this position the bar may be pivoted to a vertical position.

Abstract: This invention is directed to a chips making machine equipped with at least one wood-working tool including a wood-machining edge on the working tool, which is mounted on the periphery of the rotatable tool-holder. The machine is also equipped with a device for feeding the wood against the machining edge. The edge of the wood-working tool is designed for the production of long chips of wood mainly by shearing stresses in layers which are mainly positioned between the wood fibers and are approximately parallel with the direction of the fibers.

Abstract: A method and apparatus for optically scanning a board having at least one wane, comprising illuminating the board from at least one side in a direction substantially parallel to a sawn planar face of the board, receiving light reflected by the wane by an objective, and forming, by means of the objective images of at least the terminal parts of selected illuminated transverse zones of the board substantially in the image plane of the objective, placing a plurality of photosensitive elements generating electrical signals in proportion to the light received substantially at the image plane of the objective, forming the photosensitive elements as one rectilinear array of photosensitive signal generators oriented in the direction of the image of the illuminated transverse zone, and moving at least one of the objective and the array of generators relative to the board such that the point of intersection of the imaging axis of the objective and the board scans the board in the longitudinal direction thereof whereby