Abstract: A floating dock is formed from a fabricated frame including a pair of longitudinal extruded side rails and a plurality of cross rails interconnecting the side rails to form a rigid generally rectangular structure arranged to receive buoyancy members for floating the frame on a body of water. A plurality of floor planks bridge the side rails for forming a floor surface on the frame to be supported above the water. The rails include grooves in each surface defining a fastener having a nut to be located in the groove and a co-operating male fastener for engaging into the nut. The outer surface fastens to a rail along the outer surface and the inner surface carries the ends of the floor planks and attaches to fastening brackets of corner members.

Abstract: A fastener includes an elongate groove with two shoulders each on a respective side of a mouth of the groove and a nut to be located in the groove having a width greater than the width of the mouth so as to define front bearing surfaces to attach to a male threaded member which passes through the mouth to pull the bearing surfaces of the nut against the shoulders. The nut has a width longitudinal of the female hole which is less than the width of the mouth to pass through the mouth with the hole at right angles to the operating position so as to be rotated to turn the hole to the operating position. The nut has a rib along or adjacent a respective side edge of the nut and arranged to engage with a respective groove along a respective shoulder so as to resist outward movement of the shoulders.

Abstract: A floating dock is formed from a fabricated frame including a pair of longitudinal extruded side rails and a plurality of cross rails interconnecting the side rails to form a rigid generally rectangular structure arranged to receive buoyancy members for floating the frame on a body of water. A plurality of floor planks bridge the side rails for forming a floor surface on the frame to be supported above the water. The rails include grooves in each surface defining a fastener having a nut to be located in the groove and a co-operating male fastener for engaging into the nut. The outer surface fastens to a rail along the outer surface and the inner surface carries the ends of the floor planks and attaches to fastening brackets of corner members.

Abstract: A fuel cell utilizing parallel flow of a hydrogen stream, an oxygen stream, and an electrolyte solution with respect to the electrodes, while maintaining mechanical support within the fuel cell. The fuel cell utilizes framed electrodes to maintain a high air flow rate and low pressure throughout the fuel cell. The fuel cell is also designed to maintain mechanical support within the fuel cell while the electrodes expand and contract in response to the absorption of oxygen and hydrogen. Gas is predistributed by the compression plates and frames to supply the electrodes with high concentrations of oxygen from air.

Abstract: A fuel cell utilizing parallel flow of a hydrogen stream, an oxygen stream, and an electrolyte solution with respect to the electrodes, while maintaining mechanical support within the fuel cell. The fuel cell utilizes framed electrodes to maintain a high air flow rate and low pressure throughout the fuel cell. The fuel cell is also designed to maintain mechanical support within the fuel cell while the electrodes expand and contract in response to the absorption of oxygen and hydrogen. Gas is predistributed by the compression plates and frames to supply the electrodes with high concentrations of oxygen from air.