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By the early 1930s the space available for disposal of dirt was exhausted and with an anticipated increase in dirt production arising from the proposed washery installation it was decided to expand across the Midland Railway to the north of the colliery. In order to do this a bi-cable aerial ropeway capable of handling 100 tons of waste per hour was constructed by D.Y.R.White and Sons (Engineers) Ltd.
The ropeway consisted of a number of steel buckets which were carried by jockey wheels running on a steel rope suspended on latticework steel towers, the buckets being drawn along by second rope. The last tower supported a steel frame carrying a rope-wheel and rail for returning the buckets and was held upright against the pull of the ropeway by steel bracing cables attached to a large concrete block secured to the bedrock.
The buckets were hung between a pair of steel arms and hinged in such a way as to make them top-heavy when loaded. A simple release-catch held them upright until at some point along the ropeway a release arm, attached to the suspension rope, operated the catch and the bucket tipped. It then continued along to the end of the suspension rope, round the return frame and back to the loading bay where it was righted, the catch reset and the bucket parked ready for another load. The tip was extended by periodically moving the release catch further along, the steel towers gradually being buried as the tip built up around them.
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