invented the hydraulic press for oil extraction (1).
Oilseeds were milled, cooked, and wrapped in filters cloths woven from horse-hair.
The oilseeds wrapped in filter cloths were manually loaded into perforated, horizontal
boxes below the head block and above the ram of the press. The boxes were
pressed together using upward hydraulic pressure on the ram. The oil was pressed
out through the filter cloths surrounding the oilseeds. The filter cloths and spent
cake were manually removed from the hydraulic press. The residual oil in spent
cake was approximately 10%.