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The scraper was powered by compressed air.
Two cables were attached to the back of a hoe and one to the front.
The ore was dragged to a chute down to the next level for trucking to the shaft.
The scraper was powered by compressed air.
Two cables were attached to the back of a hoe and one to the front.
The ore was dragged to a chute down to the next level for trucking to the shaft.