Abstract: Method and apparatus for scaling, sorting, processing, cutting-up and the like of elongate timber items with two substantially parallel, longitudinal surfaces achieved by processing, during longitudinal feed of the item, including determination of a given lateral position and/or form of the item at at least one position along the item, e.g., a cross-section or cross-sectional element, with the aid of sensing means. The method determination takes place with the aid of touch-free distance-sensing means with predetermined measuring directions, fixed and discrete, for determining distances to at least two measuring points on the surface of the timber item, said measuring points being substantially in a cross-section or cross-sectional element of the timber item and on either side of a reference line across the cross-section or cross-sectional element.

Abstract: An arrangement in circular saws of the kind which incorporate at least one saw-blade (1), a saw-blade drive spindle or the like, and at least one guide means (12, 14, 15) active against the saw-blade.The arrangement is particularly characterized in that there is provided at least one saw-blade assembly (1) which co-operates with a guide means (12, 14, 15) and which comprises at least two mutually separate, circumferentially extending blade-sections (2, 3), of which a peripherally located blade-section (2) provided with saw-teeth (5) is arranged for movement relative to the nearest inwardly located blade-section (3, 11) along an interface-zone (8) located between the two blade-sections (2, 3, 11), and is attached to the nearest inwardly located blade-section by means of parts which substantially prevent relative rotation between the two blade-sections in order to permit torque to be transmitted from the saw spindle (4) to the peripheral blade-section (2).

Abstract: A method and a device for carrying out the method of guiding the blades (4) of a circular saw in operation, such as at the sawing of, for example, saw timber, timber blocks, battens or other workpieces on wood basis, where one or several blades (4) are located at an axle (6) and each blade is guided by at least one guide (9,11) acting on the blade. At least one of the guides (9,11) of each blade (4), and in such a case guides corresponding to each other for all blades (4), separate or together with said corresponding guide of remaining blades in the form of a guide package (9',11') during the sawing are floating substantially in the axial direction of the blades (4) and hereby continuously positioned laterally in response to movements and position of the workpiece (1) being sawn, substantially in the axial direction of the blades in connection to the guide or guide package and/or the lateral movements and lateral position of the blade(s) in connection to the guide (9,11) or guide package (9',11').