Importance

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Abstract

A preferred mineral jig apparatus includes a jig tank having a laterally oriented piston and cylinder assembly mounted therewithin. The piston and cylinder assembly defines two compartments, with reciprocating motion of the piston causing pulsating action of the water within the two respective compartments. The piston and cylinder assembly includes a cylinder, a piston assembly and a piston rod connected to the piston assembly. The piston rod includes an internal channel to convey make-up water to the tank from an external water source. The piston rod is supported for lateral reciprocating motion by at least two downwardly hanging leaf springs. The piston assembly comprises a pair of separated piston plates oriented transversely relative to the cylinder. The separated piston plates defining a space therebetween as well as a separation distance between the piston plates. The piston rod is connected to one of the piston plates. The internal piston rod channel communicates with the space between the piston plates to expel make-up water thereto. The cylinder has a length which is approximately equal to the separation distance between the piston plates. One of the piston plates is moved into the cylinder upon a given piston stroke, while the other of the piston plates is moved away from the cylinder upon the given piston stroke. The mineral jig apparatus further comprises a drive mechanism for imparting reciprocating action to the piston.

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First Claim