Educational film showing how slate is quarried and used for roofing.
British Instructional Films presents a Classroom Film.
Landscape - pan down to a slate quarry. Slate is lifted by a winch. A small train carries barrows of slate along. Men at work splitting large pieces of slate. Man drills a hole in the slate and inserts explosives. Man rings a large bell and man abseils down side of quarry. C/U of fuse of explosive burning. Explosion takes place and slate falls to the ground. Man stands on a large slab of slate and splits another with a hammer and chisel. Large nails are driven into the slate to split it into layers. Pieces of slate are stacked on to a barrow and moved along on wheels. A mechanical cutting wheel cuts the slate into smaller pieces. A man uses a hammer and chisel to split the slate into finer pieces. Another man works a tool with his foot on a plank. This tool cuts the slate rather like a guillotine. Slate is trimmed. Slate is stacked in rows. Men load barrows full of slate. Man on roof carries slates on his head. Another man drills holes in the slates. Two men work together to tile a roof, they knock nails into the slates. View of a finished roof.