Abstract: A rinsing machine suitable for rinsing a washable dust mat is provided with first squeeze means, pressure means downstream of the first squeeze means and at least one intermediate squeeze means between the first squeeze means and the pressure means. Rinsing water is applied onto the mat between the pressure means and the last intermediate squeeze means, part of the rinsing water being allowed to pass upstream of each intermediate squeeze means in turn whereby the mat is rinsed at least twice from the single supply of rinsing water. The means which allow part of the rinsing water to pass upstream of each intermediate squeeze means is disposed within the length of the respective intermediate squeeze means. A washing machine comprises the rinsing machine and discharge means upstream of the first squeeze means for flushing a mat with a washing liquid.

Abstract: A cost monitoring system for a dishwashing operation is disclosed. The pumps and/or valves through which the water flows in a dishwashing operation are monitored. Monitoring devices provide outputs on identical cost basis. These outputs are combined and a visual display provided of the cost attendant to the dishwashing operation.

Abstract: For automatic bacteriological cleaning and disinfection of objects there is provided a series of treatment compartments which can be closed individually. The objects are fed sequentially into the compartments. They are treated with fluid therein in a predetermined cycle of operations. Liquid used in one compartment is recovered and collected for use in another compartment in a following cycle of operations. In one operation, objects are moved from a first compartment to a second compartment, fresh treating liquid is pumped from a tank associated with the second compartment into that compartment, and then this liquid is discharged directly to another tank associated with the first compartment.

Abstract: A scraper nozzle which provides a high pressure, uniform sheet of water. The nozzle is preferably used in the upstream portion of the prewash zone of a warewasher. Wares, such as dishes, are contacted by the sheet of water and the materials on the dishes are scraped off. The nozzle comprises a planar surface and an arcuate surface. The arcuate surface terminates in a discharge edge which is characterized by a plurality of protuberances. The water flows across the discharge edge and forms the uniform sheet of water.

Abstract: Apparatus adapted for cleaning or degreasing work pieces by contacting with an organic degreasing agent such as a halogenated hydrocarbon. The work pieces are moved in and out of contact with the degreasing agent and are supported on an array of substantially parallel, spaced, elongate members, in fixed position. Means are included for moving the work pieces across the top surface of the array in the direction of elongation of the members.

Abstract: To quench hot coke it is delivered to the surface of water in a tank, where the coke floats. The coke is carried along the surface of the water until it becomes saturated and sinks, whereupon it is removed from the tank. The water adhering to the removed coke is allowed to evaporate.

Abstract: A bearing washing machine is provided having a series of cleaning stages through which bearings can be continually processed. The washer includes a conveyor means formed by two variably spaced block chains. The block chains are in driving connection with a motor means and pass underneath a plurality of nozzles, the latter providing in sequence a washing operation, a high pressure air blowoff for removing washing solution from the bearings, and a low pressure air stream providing drying air to the bearings. The block chains are further arranged to have guide rails variably spaced thereabove so that the outer races of bearings of varying thicknesses may be received and conveyed through the aforesaid cleaning operations. In addition, mechanical linkage is provided for adjusting the spacing between the block chains so that the outer races of bearings having different diameters may be processed.

Abstract: A tray washing system includes conveyors which transport compartmented food service trays from a tray receiving mechanism to inverting and scrapping mechanisms and through washing, rinsing and drying mechanisms to a stacking mechanism. The receiving mechanism restricts trays to insertion in a predetermined orientation in which the food receiving surfaces face upwardly, and the inverting mechanism inverts each tray so that the food receiving surface faces downwardly. As each tray is inverted, the scrapping mechanism discharges substantially the entire contents of a cleaning fluid reservoir onto the food receiving surface of the tray, and thereby dislodges refuse and silverware that may be on the tray. The washing, rinsing and drying mechanism apply a water-detergent solution, rinse water, and drying air to the trays, respectively, and the stacking mechanism deposits the trays onto a mobile self-depressing tray receiver.