Sawmill stop assembly module

摘要

An improved fully mechanized sawmill is provided which is composed of structurally independent modules which are removably mounted on a platform composed of a plurality of side-by-side longerons supported horizontally on files of spaced-apart vertical piers and columns. The longerons provide horizontal stress support for the platform along the files of piers and columns perpendicularly to the cutting axis of the sawmill, and the modules mounted thereon provide horizontal stress support for the platform along the ranks of the piers and columns parallel to the cutting axis. In addition, improved mechanisms and techniques are provided for handling and selecting the sawlogs to be cut, for selecting and distributing the pieces cut therefrom according to shape and utility, and for stacking and handling the distributed pieces at preselected locations according to shape and utility. In particular, a stop assembly is provided for selectively stopping a board or tie and which includes a plate pivotally mounted on a rocker bar. The rocker bar is in turn pivotally mounted between a pair of vertical arms having a pivot rod at their lower ends. A pneumatic cylinder is anchored at one end to the pivot rod and the piston rod thereof is linked to the rocker bar.