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Amgueddfa Cymru – Museum Wales
A Sullivan Ironclad Tubinair Machine pulled around parallel to the face by the chain haulage and in a position ready for jibbing under. This is done by hooking the haulage chain to the jib and slewing the jib under the face, the cutter chain of course is running rapidly during the operation. This operation is completed in from 3 to 5 minutes.
