I have been reading a report of a mining accident involving a skat conveyor. But I can't find out what the skat conveyor is conveying. I have found some references to a card game:-
1 : a three-handed card game played with 32 cards in which players bid for the privilege of attempting any of several contracts
2 : a widow of two cards in skat that may be used by the winner of the bid
but one could hardly ship that around on a conveyor. Urban Dictionary has an alternative definition, about which the less said the better.
So, in a mining context, what is skat?