Abstract: In combination with a cant sawing or cutting unit, a system for guiding two-faced cants through the cut along the line of their natural curvature which includes at the infeed and outfeed ends of the unit, laterally moveable rollers for clamping upon parallel planar faces of the cant and imparting to it a pivotal movement in the horizontal plane while it is moving forward through the cut, so that the saws or cutters follow along a controlled curve in relation to the natural curvature of said cant.

Abstract: In combination with a cant sawing or cutting unit, a system for guiding two-faced cants through the cut along the line of their natural curvature. The system comprises, at the infeed and outfeed ends of the unit, laterally moveable roller means for clamping upon parallel planar faces of the cant and imparting to it a pivotal movement in the horizontal plane while it is moving forward through the cut, thereby causing the saws or cutters to follow along a controlled curve in relation to the natural curvature of said cant.

Abstract: In combination with a cant sawing or cutting unit, a system for guiding two-faced cants through the cut along the line of their natural curvature which includes at the infeed and outfeed ends of the unit, laterally moveable rollers for clamping upon parallel planar faces of the cant and imparting to it a pivotal movement in the horizontal plane while it is moving forward through the cut, so that the saws or cutters follow along a controlled curve in relation to the natural curvature of the cant.

Abstract: The disclosure describes a system to provide a steady supply of lumber pieces to a board separating device and insure the correct positioning of each lumber piece, at the proper time, thus allowing the separating device to function at a substantially higher rate than hitherto possible with previously known infeeding arrangements.

Abstract: A flexible mounting system principally developped for ring-type log debarkers comprises a combination of freely oscillating supporting links and weight compensating pneumatic devices, arranged in such a way as to allow the working tool assembly of the debarker to move in any direction in response to external forces exerted upon it by the longitudinal feed motion or the shape irregularities of the log.

Abstract: The disclosure herein describes a knife holder forming part of a timber shaping and chip cutting head; the holder defines a flat shaped body bent in an open V-shape to form two integrally joined portions, one of which provides a surface for mounting upon a rotatable core and the other serves to secure the chip cutting knife. The head is formed of a plurality of adjacently disposed knife holders radially mounted on the face of said rotatable core, said face being perpendicular to the axis of rotation. The knife is removably mounted upon the knife holder in a manner that the knife can be rotated so that more than one cutting edge may be used.

Abstract: The disclosure describes a cutting tool assembly for mounting unto a rotatable chip forming head. It comprises a knife holder having a base portion which is adapted to be secured peripherally to the head and a cantilevered plate portion having a lower section integral with the base portion and an upper section extending obliquely over the base portion. The cantilevered arrangement of the knife supporting plate enables the lateral ejection of chips produced from a solid piece of wood during operation so that chips do not contact successive cutting tool assemblies as the head rotates.

Abstract: A system used in combination with a cant sawing or cutting unit, the function of which is to guide two faced-cants through the cut along the line of their natural curvature. The system comprises, at the infeed end of the unit, rollers for clamping the opposite planar faces of the cant, thus providing it with a pivotal point, and also includes means for causing an angular displacement of the forwardly moving cant, from said pivotal point and relative to the sawing or cutting elements, thereby allowing the elements to cut along the natural curvature of the cant.

Abstract: The disclosure describes an apparatus to move, individually and at a controlled rate, sawlogs and tree stems from a first multiple feeding station to a second station situated at a higher level than that of the first station; it comprises a frame, a set of fixed plates and a set of movable plates, both in parallel vertical planes. A system of levers is connected to the set of movable plates so as to serve as support and to supply it with a trajectory defining an arc of a circle. A rotary motor, a drive lever and a link cooperate to provide this trajectory with a sinusoidal-type acceleration.