Early Continuous Excavator Patent Model pharmaceutical 12" W x 17" H

12" W x 17" H x 7" D

and scattered wear consistent with age and hearth use

as well as the bottom right corner

all leaves and clips remain intact

While it's not known what the inside reads

Early Continuous Excavator Patent Model pharmaceutical 12" W x 17" HHand fabricated mechanical patent model constructed of wood with a tin clad upper housing, illustrating a continuous material handling concept built around a rotary feed system. The front intake scoop is flanked by angled guides that channel material inward toward a prominent star shaped wheel, which functions as an agitator or feeder. From there, material would be directed into a curved internal trough and carried through the enclosed body before