diaphragm jig

diaphragm jig

[′dī·ə‚fram ‚jig]
(mining engineering)
A jig having a flexible diaphragm to pulse water; used in gravity concentration of minerals.
References in periodicals archive ?
Grit can be washed by a diaphragm jig, placed in the flow stream or otherwise or by means of a separate unit in which agitation is accomplished by diffused air.