Abstract: This invention attaches to a sawmill carriage, enabling an operator to turn a log carried by the sawmill carriage without having to return the sawmill carriage to a fixed location. The invention includes a log turning hook with positioning guide bar that slides vertically with respect to, and pivots with, a cylinder. As the turning hook with positioning guide bar is lifting the log, the weight of the log is forcing the hook with positioning guide bar to pivot, which rotates the log ninety degrees into position for the next saw cut.

Abstract: A control system particularly for use for saw mill machinery utilizing large pneumatic actuators. A joystick provides an electrical control signal to a hydraulic proportional pilot valve which, in turn, hydraulically controls a valve body which controls the flow of air to the pneumatic actuator.

Abstract: An end-dogging log carriage system has two narrow, carriage sections, supportably guided on an elongated track, interconnected by a drive cable and a clamping cable. Both cables are wrapped around a spooling drum mounted on one of the carriage sections in such a way so that rotation of the spooling drum simultaneously changes the operative length of both clamping and drive cables thereby moving one carriage section with respect to the other to adjust the length of the log carriage and clamp a log therebetween. The tension in the cable system acting at the cable attachment points on each carriage section provides therein a preinduced countermoment in opposition to the dogging moment occurring when a log is dogged. The carriage sections are laterally biased against a single sidemounted guide rail spaced from the supporting track and discontinuous proximate the saws by a preloaded torque shaft mounted on each carriage section.

Abstract: This invention is directed to an improved stop and loader assembly for use in a sawmill and the like, and more particularly includes an improved combination slapper bar and log turner. The combination slapper bar and log turner preferably includes a rectangular hollow slapper bar section which contains a movable member having a plurality of teeth pivotally attached thereto. A fluid-actuated piston assembly is provided for drawing the movable member and teeth longitudinally in and out of the slapper bar. A slot is further provided in the upper end of the slapper bar and adjacent any sawlog reposing on the carriage next to the slapper bar, whereby the teeth fall out of the slapper bar in an extended position to engage the log when the movable member is thrust upward in the slapper bar, and whereby the teeth fold into the slapper bar whenever the movable member is drawn downward therein.

Abstract: This invention is directed to an improved stop and loader assembly for use in a sawmill and the like, and more particularly includes an improved combination slapper bar and log turner. The combination slapper bar and log turner preferably includes a rectangular hollow slapper bar section which contains a movable member having a plurality of teeth pivotally attached thereto. A fluid-actuated piston assembly is provided for drawing the movable member and teeth longitudinally in and out of the slapper bar. A slot is further provided in the upper end of the slapper bar and adjacent any sawlog reposing on the carriage next to the slapper bar, whereby the teeth fall out of the slapper bar in an extended position to engage the log when the movable member is thrust upward in the slapper bar, and whereby the teeth fold into the slapper bar whenever the movable member is drawn downward therein.

Abstract: This invention is directed to an improved stop and loader assembly for use in a sawmill and the like, and more particularly includes an improved combination slapper bar and log turner. The combination slapper bar and log turner preferably includes a rectangular hollow slapper bar section which contains a movable member having a plurality of teeth pivotally attached thereto. A fluid-actuated piston assembly is provided for drawing the movable member and teeth longitudinally in and out of the slapper bar. A slot is further provided in the upper end of the slapper bar and adjacent any sawlog reposing on the carriage next to the slapper bar, whereby the teeth fall out of the slapper bar in an extended position to engage the log when the movable member is thrust upward in the slapper bar, and whereby the teeth fold into the slapper bar whenever the movable member is drawn downward therein.