Waste lead-away during building construction - hopper at each floor has pipe leading into hopper below

摘要

An arrangement for disposal of rubbish, motar etc. during construction of multi-storey buildings has a hopper at every floor attached to a pipe of woven nylon coated with PVC which leads into the hopper below, except for the lowermost pipe which can lead directly into a lorry. The pipe exerts a breaking action on the rejected matl. and prevents excessive dust.