Drawing of cast iron wallowers at Deeze Hoek (Piquetberg) and Compagne's Drift (Bot River, Caledon).

Drawing of the suggested restoration of a water-wheel, depicting detail of a wooden trough (launder), a 3 in x 4 in spoke, a trough, 4 iron bars, a shaft, a mill wall and a pit wheel. Details are also provided of a section ...

Drawing of the control of the water-supply at Elim mill, depicting detail of an overflow penstock, a mill-pond, an overflow, a pivoted sluice, a penstock, a head-race or leat, a flood-hatch, a wooden launder, flume or lade, ...