Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Coal cutter, lantern slide
The upper picture shows a "Sulivan Ironelad" Longwall Machine with the jib in position for fitting or for cutting under the coal. The lower picture shows how the jib is cut under the coal by slewing with the feed chain.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.