Abstract: A cleaning system and dispenser are disclosed which feature a reservoir for retaining a liquid detergent solution; a chamber for retaining a mass of solid, dissolvable detergent; a measurement device for measuring the concentration of detergent in the liquid detergent solution; and a flow control device for circulating the liquid detergent solution from the reservoir into contact with the solid detergent so as to dissolve a portion of the solid detergent and increase the concentration of detergent in the liquid detergent solution. The circulation of the liquid detergent solution is in response to a signal from the concentration measuring device that the concentration of detergent in the liquid detergent solution has fallen below a predetermined minimum. The dispenser also includes a measurement device for measuring the volume of solution in the reservoir and for adding fresh water to the reservoir when the volume of solution is below a predetermined minimum.

Abstract: A flooring grating including a plurality of spaced I-beam support members (12) is disclosed. A plurality of interconnecting members (14) interconnect the I-beam support members (12) in a predetermined spaced, parallel relationship. Each of the interconnecting members (14) includes a central core member (16) and first and second outer spacer members (18) positioned in longitudinally extending channel-like portions (30) on opposite sides of the central core member (16). The top surface of the outer spacer members (18) is notched at intervals corresponding to the spacing between adjacent I-beam support members (12). The outer spacer members (18) are securedly attached to the central core member (16) by a suitable adhesive. The central core member (16) and the outer spacer members (18) cooperate as an integral unit to retain the I-beam support members (12) in a predetermined spaced relationship.