Abstract: A pallet transportation apparatus including a pallet support array supported on a pallet transportation chassis for reciprocal motion and comprising pallet supporters that receive and support pallets. A mast assembly is fixed to the chassis and includes guides that support and guide the pallet support array through a reciprocal lifting and lowering motion, causing the pallet support array to lift and lower pallets. A prime mover moves the pallet support array through its reciprocal lifting and lowering motion, and a motion control system schedules the reciprocal lifting and lowering motion of the pallet support array.

Abstract: A pallet transportation apparatus including a pallet support array supported on a pallet transportation chassis for reciprocal motion and comprising pallet supporters that receive and support pallets. A mast assembly is fixed to the chassis and includes guides that support and guide the pallet support array through a reciprocal lifting and lowering motion, causing the pallet support array to lift and lower pallets. A prime mover moves the pallet support array through its reciprocal lifting and lowering motion, and a motion control system schedules the reciprocal lifting and lowering motion of the pallet support array.

Abstract: An airfoil (10) is disclosed for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more converging-diverging exit slots (20) configured to increase the effectiveness of the cooling system (14) at the trailing edge (34) of the airfoil (10) by increasing the contact of cooling fluids with internal surfaces (24, 30) of the pressure and suction sides (36, 38) of the airfoil (10). In at least one embodiment, the trailing edge cooling channel (18) may include one or more converging-diverging exit slots (20) to further pressurize the trailing edge cooling channel (18) and may be formed by a first and second ribs (80, 82) extending between an outer walls (13, 12) forming the pressure and suction sides (36, 38).

Abstract: An airfoil (10) for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more internal cavities (16) having an insert (18) contained within an aft cooling cavity (76) to form nearwall cooling channels having enhanced flow patterns is disclosed. The flow of cooling fluids in the nearwall cooling channels (20) may be controlled via a plurality of cooling fluid flow controllers (22) extending from the outer wall (12) forming the generally hollow elongated airfoil (26). In addition, heat may be extracted in the midchord region (150) via one or more heat dissipating ribs (152) extending partially between an inner surface (144) of the suction side (38) and the insert (18).

Abstract: An airfoil (10) is disclosed for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more converging-diverging exit slots (20) configured to increase the effectiveness of the cooling system (14) at the trailing edge (34) of the airfoil (10) by increasing the contact of cooling fluids with internal surfaces (24, 30) of the pressure and suction sides (36, 38) of the airfoil (10). In at least one embodiment, the trailing edge cooling channel (18) may include one or more converging-diverging exit slots (20) to further pressurize the trailing edge cooling channel (18) and may be formed by a first and second ribs (80, 82) extending between an outer walls (13, 12) forming the pressure and suction sides (36, 38).

Abstract: A cooling system (10) positioned within a turbine airfoil (12) and having film cooling channels (16) positioned within inner and outer endwalls (18, 20) of the turbine airfoil (12), with cooling fluids supplied to the cooling channels (16) other than from an aft cooling chamber (22) to prevent blockages from developing within the film cooling channels (16) from debris that typically collects with the aft cooling chamber (22) during steady state operation of the turbine engine is disclosed. The cooling system (10) may include one or more midchord cooling channels (24) extending from a midchord cooling chamber (26) and including an outlet (28) positioned closer to a downstream edge (30) of the inner endwall (18) than an upstream wall (32) forming the aft cooling chamber (22).

Abstract: A cooling system (10) positioned within a turbine airfoil (12) and having film cooling channels (16) positioned within inner and outer endwalls (18, 20) of the turbine airfoil (12), with cooling fluids supplied to the cooling channels (16) other than from an aft cooling chamber (22) to prevent blockages from developing within the film cooling channels (16) from debris that typically collects with the aft cooling chamber (22) during steady state operation of the turbine engine is disclosed. The cooling system (10) may include one or more midchord cooling channels (24) extending from a midchord cooling chamber (26) and including an outlet (28) positioned closer to a downstream edge (30) of the inner endwall (18) than an upstream wall (32) forming the aft cooling chamber (22).

Abstract: A rim seal arrangement for a gas turbine engine includes a first seal face on a rotor component, and a second seal face on a stationary annular rim centered about a rotation axis of the rotor component. The second seal face is spaced from the first seal face along an axial direction to define a seal gap. The seal gap is located between a radially outer hot gas path and a radially inner rotor cavity. The first seal face has a plurality of circumferentially spaced depressions, each having a depth in an axial direction and extending along a radial extent of the first seal face. The depressions influence flow in the seal gap such that during rotation of the rotor component, fluid in the seal gap is pumped in a radially outward direction to prevent ingestion of a gas path fluid from the hot gas path into the rotor cavity.

Abstract: A preferred embodiment of the invention provides a method of placing visible advertising on the upper surface of a road (1). This method includes determining the location of any traffic control signs that are applied to the surface of the road, such as the location of signs (22, 25). Following from this, two exclusion zones (31, 32) are defined. These zones extend from the respective signs (22, 25) and terminate at a predetermined minimum distance from the signs. Advertising is then applied to the surface such that it overlies neither the signs nor the exclusion zones. Particularly, the advertising has been placed in the areas bounded by rectangles (33, 34), which are respectively disposed within lanes (7, 8).

Abstract: A preferred embodiment of the invention provides a method of placing visible advertising on the upper surface of a road (1). This method includes determining the location of any traffic control signs that are applied to the surface of the road, such as the location of signs (22, 25). Following from this, two exclusion zones (31, 32) are defined. These zones extend from the respective signs (22, 25) and terminate at a predetermined minimum distance from the signs. Advertising is then applied to the surface such that it overlies neither the signs nor the exclusion zones. Particularly, the advertising has been placed in the areas bounded by rectangles (33, 34), which are respectively disposed within lanes (7, 8).

Abstract: A preferred embodiment of the invention provides a method of placing visible advertising on the upper surface of a road (1). This method includes determining the location of any traffic control signs that are applied to the surface of the road, such as the location of signs (22, 25). Following from this, two exclusion zones (31, 32) are defined. These zones extend from the respective signs (22, 25) and terminate at a predetermined minimum distance from the signs. Advertising is then applied to the surface such that it overlies neither the signs nor the exclusion zones. Particularly, the advertising has been placed in the areas bounded by rectangles (33, 34), which are respectively disposed within lanes (7, 8).

Abstract: A preferred embodiment of the invention provides a method of placing visible advertising on the upper surface of a road (1). This method includes determining the location of any traffic control signs that are applied to the surface of the road, such as the location of signs (22, 25). Following from this, two exclusion zones (31, 32) are defined. These zones extend from the respective signs (22, 25) and terminate at a predetermined minimum distance from the signs. Advertising is then applied to the surface such that it overlies neither the signs nor the exclusion zones. Particularly, the advertising has been placed in the areas bounded by rectangles (33, 34), which are respectively disposed within lanes (7, 8).

Abstract: A preferred embodiment of the invention provides a method of placing visible advertising on the upper surface of a road (1). This method includes determining the location of any traffic control signs that are applied to the surface of the road, such as the location of signs (22, 25). Following from this, two exclusion zones (31, 32) are defined. These zones extend from the respective signs (22, 25) and terminate at a predetermined minimum distance from the signs. Advertising is then applied to the surface such that it overlies neither the signs nor the exclusion zones. Particularly, the advertising has been placed in the areas bounded by rectangles (33, 34) which are respectively disposed within lanes (7, 8).

Abstract: A preferred embodiment of the invention provides a method of placing visible advertising on the upper surface of a road (1). This method includes determining the location of any traffic control signs that are applied to the surface of the road, such as the location of signs (22, 25). Following from this, two exclusion zones (31, 32) are defined. These zones extend from the respective signs (22, 25) and terminate at a predetermined minimum distance from the signs. Advertising is then applied to the surface such that it overlies neither the signs nor the exclusion zones. Particularly, the advertising has been placed in the areas bounded by rectangles (33, 34) which are respectively disposed within lanes (7, 8).