System safely inverts and empties drums of various dry materials into your process. The MTS hydraulic Lift Seal System™ seals drum to a dusttight pour cone for a clean working environment.
A portable source of light probably started with a cave man carrying a burning stick of wood. There have been many portable light sources based on burning something. Once the dry cell battery became available flashlights became more popular than they were when a lead acid or other wet battery was needed.