Abstract: The present invention relates to a sharpening device for sharpening a wear edge of a rubber, plastic or polyurethane blade, such as a synthetic squeegee blade used in silk screening printing, comprising a housing with a base and an upper surface having a longitudinal clamp for clamping the blade during the sharpening operation. The sharpening device further comprises a cutting blade or knife which is removably held by a moveable carriage, both of which are located within a housing. The carriage is mounted on a block assembly and, preferably, carries a removable cutter holder. In operation, the carriage travels along the path of the wear edge of the squence blade, and the cutting blade or knife acts to cut off the wear edge of the blade and simultaniously treate a new edge. The cutting blade is mounted in an inclined position, with respect to the horizontal length of the wear edge, so that the upper beveled surface of the cutting blade is substantially parallel to the horizontal plane of the wear edge.

Abstract: The present invention provides an apparatus and method for accomplishing fluid disinfection by passing fluid flow through a uniform array of ultraviolet lamps having cross sections perpendicular to the direction of fluid flow that define channels for the fluid flow. Positioned next to the end of each lamp at the entrance of the fluid flow are triangular shaped delta wings having surfaces inclined at an angle to the direction of fluid flow. The interaction of the fluid flow with each delta wing creates a pair of vortices that rotate in the same direction or in directions opposed to each other. The counter-rotating vortices reinforce each other to minimize dissipation of their mixing strength as they move down the channel. Due to these co-reinforcing properties these counter-rotating vortices more promote efficient mixing of the fluid which is required to achieve more efficient use of the light in the UV disinfection systems, along with heat and/or mass transfer in chemical reactions.

Abstract: A lithium iodine primary cell is provided that comprises a lithium anode encasing member having an aperture therethrough. Positioned within the anode encasing member is a cathode which consists essentially of a mixture of organic charge-transfer complex and iodine. The cathode includes a current collector having a lead portion with an insulating coating positioned through the aperture in the encasing member. Optionally, the current collector may include an insulating frame around its periphery to prevent electrical contact with the anode. A lithium iodide electrolyte is coextensively positioned between and in contact with the inner surface of the encasing member and the cathode.The method for making the cell includes forming a receiving vessel of lithium and positioning the cathode current collector therein. The cathode material is heated to a flowable consistency and the vessel is completely filled with the heated cathode material.

Abstract: A cone spray nozzle is provided in a tubular member for carrying a fluid to be sprayed. The tubular member has at least one opening with a plurality of grooves, preferably symmetrical, around the periphery thereof. In each opening is positioned a dispersion member having a stem portion for fastening to the tubular member and a tapered head portion with an angular, typically conical surface for dispersing the fluid. The fluid is ejected from the tubular member through the grooves to strike the tapered head portion, which in turn disperses the fluid in a generally conical spray pattern. Preferably the nozzle is made by punching the opening having the peripheral grooves with a die and inserting the dispersion member which is preferably a standard flat-head screw or rivet.

Abstract: A gear wheel support of composite construction and comprising a gear wheel support sleeve with an internal abutment pillar secured in abutting relationship with an abutment pillar protruding from a face of a carrier, these pillars together comprising a flexible spindle co-axial with the sleeve with an annular clearance between this spindle and the sleeve.