Abstract: A rotary cutter head knife jointer is disclosed, in which a rigid base is adapted for mounting in a fixed position adjacent a rotary cutter head. The jointer includes a first carriage and a first guide that mounts the first carriage to the rigid base for translational movement along a first prescribed path. A second carriage is mounted to the first carriage and includes a jointing stone holder and a bolster plate. A second guide member mounts the bolster plate to the first carriage for translational movement along a second prescribed path. The second guide member includes a pair of parallel elongated guide bars that are mounted between the first carriage or bolster plate, to define the second prescribed path. A pair of guide bar engaging members are located on one or both of the first carriage and bolster plate.

Abstract: A jointing method and apparatus is described for jointing rotating blades on surfacing machines such as wood planers. The apparatus includes a pair of rods secured to the surfacer framework. An actuator mechanism is slidably mounted to the rods by a pair of bushings. The actuator mechanism carries a jointing stone securely, yet adjustably, for motion along the length of the rods and along the rotating cutter head. The adjustment mechanism is provided such that the stone can be moved in an arc toward and away from the cutter head. This adjustment is facilitated, along with free motion of the stone holder along the guide rods by a single hand wheel operated at a position remote from the rotating cutter head.