Abstract: A can cleaning machine having a lower conveyor belt and an extended coacting upper hold down belt is provided with a blow off unit at each successive stage of the cleaning operation. By extending the hold down belt and providing multiple blow off stations, the corrosive effects of the washing compositions are minimized and the hold down belt life is lengthened; and the washing compositions are maintained in their proper respective zones. This also prevents contamination of the rinse zones by carry over of the washing chemicals from the wash zones.

Abstract: Apparatus for washing baking pans or the like comprises a pair of side-by-side hot washing solution tanks with a hot spray chamber mounted above each tank and with an endless belt conveyor which passes the articles successively through the spray chambers and from thence on to a dryer. A heat exchanger submerged in one of the tanks heats the water in that tank, some of which overvlows into the other tank. The same heat exchanger supplies hot air to both spray chambers by a flue riser outlet above the level of both tanks. Thus the heating equipment in one tank heats both tanks, and both spray chambers: thus saving the additional energy that would be required to separately heat such tank and each spray chamber.