jigging

2 definitions found

jigging - Collaborative International Dictionary of English v.0.48 :

  Jigging \Jig"ging\, n. (Mining)
     The act or using a jig; the act of separating ore with a
     jigger, or wire-bottomed sieve, which is moved up and down in
     water.
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     Jigging machine.
     (a) (Mining) A machine for separating ore by the process of
         jigging.
     (b) (Metal Working) A machine with a rotary milling cutter
         and a template by which the action of the cutter is
         guided or limited; -- used for forming the profile of an
         irregularly shaped piece; a profiling machine.
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  Jig \Jig\, v. t. [imp. & p. p. Jigged; p. pr. & vb. n.
     Jigging.]
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     1. To sing to the tune of a jig.
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              Jig off a tune at the tongue's end.   --Shak.
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     2. To trick or cheat; to cajole; to delude. --Ford.
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     3. (Mining) To sort or separate, as ore in a jigger or sieve.
        See Jigging, n.
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     4. (Metal Working) To cut or form, as a piece of metal, in a
        jigging machine.
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