Today in 1974, US Patent 3840435 A was issued, an invention of Rees Damon, assigned to Rahr Malting Co., for his “Malting Apparatus.” There’s no Abstract, although in the description it includes this summary:
Apparatus for malting barley including an elongated germination compartment and a plurality of vertically extending, transversely spaced augers moveable longitudinally within the compartment for intermittently mixing the barley during the germination period. To remove the malted barley from the germination compartment, the compartment floor includes a centrally positioned, longitudinally extending opening. A plurality of longitudinally spaced pairs of gates are pivotably mounted within the floor opening; the gates comprising each pair are pivotally attached to opposite edges of the opening for pivotal movement between a generally horizontal floor-forming position closing the opening and a downwardly inclined position allowing the malt within the compartment to pass through the opening to suitable means (e.-g. a conveyor) for transporting the malt to a drying kiln. A transversely extending auger is removeably mounted immediately behind the vertically extending augers and adjacent the compartment floor for moving the barley transversely within the germination compartment toward the centrally positioned floor opening during the compartment unloading operation. Pneumatic switches are positioned along the side of the germination compartment to automatically and independently pivot (i.e., open) the floor gates at successive predetermined positions of the transversely extending auger.