Abstract: A magnetic bird screen for an opening of a steel structure such as a bridge or the like includes a magnetic sheet sized to cover the access opening and at least partially overlap the steel structure at the opening so that the sheet is magnetically secured to the steel structure. The sheet has a plurality of spaced-apart holes sized sufficiently large to permit the passage of air and water therethrough and to be used as finger holes for installation and removal and sized sufficiently small to prevent the passage of pigeons therethrough. The sheet can be folded or rolled upon itself so that the sheet remains secured at one side of the opening or the sheet can be entirely removed when it is desired to have access through the opening.

Abstract: A magnetic bird screen for an access opening of a steel structure such as a bridge or the like includes a magnetic sheet sized to cover the access opening and overlap the steel structure entirely about the access opening so that the sheet is magnetically secured to the steel structure. The sheet has a plurality of spaced-apart holes sized sufficiently large to permit the passage of air and water therethrough and sized sufficiently small to prevent the passage of pigeons therethrough.

Abstract: A magnetic bird screen for an opening of a steel structure such as a bridge or the like includes a magnetic sheet sized to cover the access opening and at least partially overlap the steel structure at the opening so that the sheet is magnetically secured to the steel structure. The sheet has a plurality of spaced-apart holes sized sufficiently large to permit the passage of air and water therethrough and to be used as finger holes for installation and removal and sized sufficiently small to prevent the passage of pigeons therethrough. The sheet can be folded or rolled upon itself so that the sheet remains secured at one side of the opening or the sheet can be entirely removed when it is desired to have access through the opening.

Abstract: The system comprises a tank containing water and potatoes entrained therein. A food pump transports the mixture through a relatively long accelerator conduit of tapering cross-section. Some of the water from the output of this conduit is bypassed in accordance with the setting of a valve. A second conduit also has a tapering cross-section to align the potatoes. A water-operated turbine carries a disc-like cutter which is arranged in close proximity to the output of the second conduit. The cutter cuts the potato into helical lengths. Slitter blades on the cutter further cut the potato into helical strips. The turbine has a rotor which, in turn, carries a flywheel portion, the two parts being integral. Bearings press-fit on the rotor are journalled onto upstream and downstream stators in the turbine. Lubricating water is delivered to the bearing surfaces between the rotor and the stators.

Abstract: The system comprises a tank containing water and potatoes entrained therein. A food pump transports the mixture through a relatively long accelerator conduit of tapering cross section. Some of the water from the output of this conduit is bypassed in accordance with the setting of a valve. A second conduit also has a tapering cross-section to align the potatoes. A water-operated turbine carries a disc-like cutter which is arranged in close proximity to the output of the second conduit. The cutter cuts the potato into helical lengths. Slitter blades on the cutter further cut the potato into helical strips. The turbine has a rotor which, in turn, carries a flywheel portion, the two parts being integral. Bearings press-fit on the rotor are journalled onto upstream and downstream stators in the turbine. Lubricating water is delivered to the bearing surfaces between the rotor and the stators.