Skimmer
A tool for preventing the dirt and slag from following the stream as the metal flows from the ladle-lip into the runner. They are simply of wood in some foundries; but generally they consist of a long piece of flat iron bent at one end, or a long light bar to which is welded a stronger piece of flat iron bent to fit the ladle-lip. The self-skimming ladle is intended to obviate the necessity for skimming. See LADLE; LIP.