The cam lifter feed mechanism of this invention comprises an inclined endless chain conveyor carried by an upper framework and a lower framework including a multiplicity of lug-like lumber engaging means mounted at intervals on the endless Chain chains of the conveyor, a driven shaft journaled for roatation in the upper framework including sprockets operatively engaged with endless chains of the conveyor, a lumber conveyor chains attachments 1201905231604106752025plurality of cam lifters mounted on the shaft at opposite terminal sides of the endless chain conveyor including outwardly projecting hook-like foot portions getting operable to engage the lowermost terminal edge of lumber carried on the conveyor by the lug-like engaging means and also to carry the lumber over the shaft to a point of discharge, a downwardly inclined discharge feed guide means mounted on the upper framework between cam lifters. The lower construction having a set of other hopper forming downwardly inclined part body associates becoming operable to steer lumber toward the unlimited string conveyor, means mounting the endless string conveyor distally close to the lowermost end of the downwardly inclined side framework member. The hook-like foot servings each possess a leading advantage downwardly willing with regards to the radii of the cam lifter at an angle coincident with the angle of inclination of the countless chain conveyor, the foot portion giving upwardly from the industry leading right into a catch forming part.