Long-established and widely used form of shaking table; rectangular; mounted
horizontally and can be sloped about its long axis. It is covered with linoleum
(occasionally rubber) and has longitudinal riffles tapering at the discharge
end to a smooth cleaning area, triangular in the upper corner. A compound
eccentric is used to create a gentle and rapid throwing motion on the table,
longitudinally. Sands, usually classified for size range, are fed continuously
and worked along the table with (1) the aid of feedwater, and (2) across
riffles downslope by gravity tilt adjustment and added wash water. At the
discharge end, the sands have separated into bands: the heaviest and smallest
uppermost; the largest and lightest lowest. The Dodd, Cammet, Hallett, and
Woodbury are similar types of tables. See also:
Woodbury table
Source:
Dictionary of Mining, Mineral, and Related Terms
