Abstract: A lumber sorter includes a plurality of bins. A conveyor carries lumber (e.g. boards) along a path extending above the plurality of bins. A diverter is selectively operable to allow the conveyor to carry the boards past one or more bins or to divert a selected board into a selected bin. The diverter may comprise an upstream gate and a downstream gate, each operable to move between respective closed positions and open positions. In the closed positions, the top surfaces of the upstream and downstream gates are substantially level and allow boards to travel along the path as directed by the conveyor. The diverter may be actuated to the open position in which the upstream and downstream gates are separated, thereby providing a path for a board to fall into a bin.

Abstract: A breakdown hoist has a secondary stage that permits continuous operation. The breakdown hoist may be run with the secondary stage disabled. In some embodiments a primary and secondary stage can discharge lumber simultaneously onto two conveyors. Providing two conveyors can increase surge capacity.

Abstract: A positioning system can position lumber to be cut while the lumber is traveling on a transfer deck. The positioning system has end stops that circulate at the same rate as the transfer deck. The end stops each have a locking mechanism that is triggered when the end stop passes an actuating member. A controller positions the actuating member so that the locking mechanism will lock the position of the end stop when the end stop is in a desired position.

Abstract: A lumber bin has live bin walls. The lumber bin may be used in lumber sorting. The bin has upstream and downstream walls located above a conveyor. A lumber support in the bin has an elevator mechanism and can be lowered to a discharge position in which lumber on the lumber support can be carried away by the conveyor. A gate is mounted below the conveyor. The gate is in an upright position as the lumber support is lowered. The gate can be pivoted downstream to a lowered position below a level of the conveyor to gently discharge lumber onto the conveyor.