A system including apparatus for automatically and continuously, or intermittently, feeding disposal material such as highly combustible waste plastic in containers such as 55 gallon steel drums or in packages such as 30 gallon sizes into a rotary kiln or any other appropriate receiver. Highly combustible...http://www.google.ca/patents/US3986624?utm_source=gb-gplus-sharePatent US3986624 - Disposal feeding system including selective container control
