Patents Assigned to National Steel Car Limited
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Publication number: 20070234928Abstract: A coil car has a pair of deep side sills and a trough structure mounted to, and suspended between, the deep side sills for carrying coils. The side sills extend between the rail car trucks and act as a pair of deep side beams for carrying vertical loads. The deep side sills are arranged to extend above and below the center sill of the coil car to give vertical stiffness to the coil car. The top chord members of the side sills are outwardly splayed relative to the bottom chord members of the side sills. Cross-bearers extend outwardly and away from the center sill to attach to the side sills. The trough structure has three parallel, longitudinally extending troughs—a central trough lying between two laterally outboard outer troughs. Each trough is shaped to cradle steel coils, or other similar loads, between its inwardly and downwardly sloping shoulder plates. The shoulder plates are lined with cushioning to buffer coils during loading or travel.Type: ApplicationFiled: June 15, 2007Publication date: October 11, 2007Applicant: NATIONAL STEEL CAR LIMITEDInventors: Mohamed AL-KAABI, Ilario COSLOVI
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Publication number: 20070209546Abstract: An auto rack rail road freight car is provided for carrying low density, relatively high value, relatively fragile lading. The car employs wheels that are greater than 33 inches in diameter.Type: ApplicationFiled: May 14, 2007Publication date: September 13, 2007Applicant: NATIONAL STEEL CAR LIMITEDInventor: James Forbes
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Patent number: 7267059Abstract: An auto rack rail road freight car is provided for carrying low density, relatively high value, relatively fragile lading. The car has trucks that have multiple dampers in a four corner arrangement in the sideframes. The dampers may include damper wedges having primary and secondary wedge angles. The spring groups in the side frames are relatively soft, giving a low vertical bounce natural frequency. In an articulated embodiment, differentially placed ballast is mounted in a biased arrangement to load the coupler end trucks to encourage a dynamic response similar to the dynamic response of the internal trucks.Type: GrantFiled: May 10, 2005Date of Patent: September 11, 2007Assignee: National Steel Car LimitedInventor: James W. Forbes
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Patent number: 7263931Abstract: A rail road car truck has side frames mounted to rock on the wheelsets. A bolster is mounted cross-wise on the sideframes, each end of the bolster being seated on a spring group, each spring group being seated in one of the sideframe windows. The bolster has damper groups mounted at each end to work between the end of the bolster and the columns of the sideframe windows. The truck has a dynamic response to lateral perturbations that includes a first component due to the swinging of the sideframes on the sideframe pedestal rockers, and a second component that is due to lateral shear in the main spring groups. The pendulum action may tend to be softer than the lateral shear in the springs, and so therefore may tend to dominate the lateral response. This swing-dominant lateral response may be combined with a multiple damper arrangement.Type: GrantFiled: February 28, 2006Date of Patent: September 4, 2007Assignee: National Steel Car LimitedInventor: James W. Forbes
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Patent number: 7255047Abstract: A rail road car has a deck for carrying wheeled vehicles. The rail road car can be coupled to other rail road cars of the same type. Bridge plates are provide that permit wheeled vehicles to be conducted between adjacent rail road cars. The bridge plates have one end mounted to the rail road car at a pivot fitting. The pivot fitting allows the bridge plate to be moved from a length-wise position spanning the gap between cars, to a cross-wise stowed position. The bridge plates have fittings which permit three degrees of freedom relative to the adjacent rail road cars, namely a first degree of freedom to tolerate yawing motion of the first rail road car, a second degree of freedom to accommodate yawing motion of the second rail road car, and a third degree of freedom to accommodate variation in distance between the respective portions of the rail road cars to which the bridge plate is mounted while the rail road cars are moving.Type: GrantFiled: August 29, 2000Date of Patent: August 14, 2007Assignee: National Steel Car LimitedInventors: Ilario A. Coslovi, James W. Forbes
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Publication number: 20070181033Abstract: A rail road freight car truck has a truck bolster and a pair of side frames, the truck bolster being mounted transversely relative to the side frames. The mounting interface between the ends of the axles and the sideframe pedestals allows lateral rocking motion of the sideframes in the manner of a swing motion truck. The lateral swinging motion is combined with a longitudinal self steering capability. The self steering capability may be obtained by use of a longitudinally oriented rocker that may tend to permit resistance to deflection that is proportional to the weight carried across the interface. The truck may have auxiliary centering elements mounted in the pedestal seats, and those auxiliary centering elements may be made of resilient elastomeric material. The truck may also have friction dampers that have a disinclination to stick-slip behaviour. The friction dampers may be provided with brake linings, or similar features, on the face engaging the sideframe columns, on the slope face, or both.Type: ApplicationFiled: December 4, 2006Publication date: August 9, 2007Applicant: NATIONAL STEEL CAR LIMITEDInventors: James Forbes, Jemal Hematian
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Patent number: 7249562Abstract: A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented web work structure for carrying vertical shear loads. The center beam so formed defines bunks upon in which to carry cargo. The upper region of the web-work structure includes a deep upper beam structure that has downwardly extending planar surfaces. The surfaces provide a bearing area against which bundled loads can be secured. The surfaces are inwardly reinforced to discourage deflection between adjacent upright members of the vertical web work.Type: GrantFiled: November 25, 2002Date of Patent: July 31, 2007Assignee: National Steel Car LimitedInventors: James W. Forbes, Alistair Wilson
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Patent number: 7234904Abstract: A coil car has a pair of deep side sills and a trough structure mounted to, and suspended between, the deep side sills for carrying coils. The side sills extend between the rail car trucks and act as a pair of deep side beams for carrying vertical loads. The deep side sills are arranged to extend above and below the center sill of the coil car to give vertical stiffness to the coil car. The top chord members of the side sills are outwardly splayed relative to the bottom chord members of the side sills. Cross-bearers extend outwardly and away from the center sill to attach to the side sills. The trough structure has three parallel, longitudinally extending troughs—a central trough lying between two laterally outboard outer troughs. Each trough is shaped to cradle steel coils, or other similar loads, between its inwardly and downwardly sloping shoulder plates. The shoulder plates are lined with cushioning to buffer coils during loading or travel.Type: GrantFiled: July 19, 2005Date of Patent: June 26, 2007Assignee: National Steel Car LimitedInventors: Mohammed Al-Kaabi, Ilario A. Coslovi
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Patent number: 7143700Abstract: A rail road freight car truck has a truck bolster and a pair of side frames, the truck bolster being mounted transversely relative to the side frames. The mounting interface between the ends of the axles and the sideframe pedestals allows lateral rocking motion of the sideframes in the manner of a swing motion truck. The lateral swinging motion is combined with a longitudinal self steering capability. The self steering capability may be obtained by use of a longitudinally oriented rocker that may tend to permit resistance to deflection that is proportional to the weight carried across the interface. The truck may have auxiliary centering elements mounted in the pedestal seats, and those auxiliary centering elements may be made of resilient elastomeric material. The truck may also have friction dampers that have a disinclination to stick-slip behaviour. The friction dampers may be provided with brake linings, or similar features, on the face engaging the sideframe columns, on the slope face, or both.Type: GrantFiled: July 8, 2004Date of Patent: December 5, 2006Assignee: National Steel Car LimitedInventors: James W. Forbes, Jamal Hematian
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Publication number: 20060254455Abstract: An articulated rail car has a plurality of rail car units joined together at articulation connections, and carried upon a number of rail car trucks that is equal to the number of rail car units plus one. At least one of the articulated connectors is located at an offset distance from the nearest rail car truck, such that the adjacent rail car has an overhang, or cantilever, between the center of the truck and the pivot center of the articulation. The truck is a two axle, four-wheel freely pivoting truck.Type: ApplicationFiled: May 23, 2006Publication date: November 16, 2006Applicant: NATIONAL STEEL CAR LIMITEDInventor: James Forbes
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Publication number: 20060254457Abstract: A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented central beam structure. The center beam so formed defines bunks upon in which to carry cargo. The upper region of the web-work structure includes a top chord mounted to run between two end bulkheads. The deck has a central portion and end portions. The end portions of the deck are carried at a greater height than the center portion, the difference in height corresponding to the height of a bundle of lumber. The car has a center sill having a depth corresponding to the depth of the step in the deck. The end portion of the center sill has an internal plate defining a draft gear pocket upper wall. The medial portion of the center sill is narrower than the end portion, and of deep section, such that it has a high aspect ratio.Type: ApplicationFiled: May 9, 2006Publication date: November 16, 2006Applicant: National Steel Car LimitedInventor: James Forbes
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Patent number: 7108467Abstract: A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented web work structure for carrying vertical shear loads between the top truss and the center sill and decking. The center beam so formed defines bunks upon in which to carry cargo. The upper region of the web-work structure includes a deep upper beam structure that has downwardly extending skirts. The skirts provide an extended bearing area upon against which bundled loads can be secured. The skirts are inwardly reinforced to discourage deflection between adjacent upright members of the vertical web work.Type: GrantFiled: March 23, 2004Date of Patent: September 19, 2006Assignee: National Steel Car LimitedInventors: James W. Forbes, Alistair Wilson
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Patent number: 7047889Abstract: An articulated rail car has a plurality of rail car units joined together at articulation connections, and carried upon a number of rail car trucks that is equal to the number of rail car units plus one. At least one of the articulated connectors is located at an offset distance from the nearest rail car truck, such that the adjacent rail car has an overhang, or cantilever, between the center of the truck and the pivot center of the articulation. The truck is a two axle, four-wheel freely pivoting truck.Type: GrantFiled: February 22, 2002Date of Patent: May 23, 2006Assignee: National Steel Car LimitedInventor: James W. Forbes
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Patent number: 7044062Abstract: A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented central beam structure. The center beam so formed defines bunks upon in which to carry cargo. The upper region of the web-work structure includes a top chord mounted to run between two end bulkheads. The deck has a central portion and end portions. The end portions of the deck are carried at a greater height than the center portion, the difference in height corresponding to the height of a bundle of lumber. The car has a center sill having a depth corresponding to the depth of the step in the deck. The end portion of the center sill has an internal plate defining a draft gear pocket upper wall. The medial portion of the center sill is narrower than the end portion, and of deep section, such that it has a high aspect ratio.Type: GrantFiled: March 12, 2001Date of Patent: May 16, 2006Assignee: National Steel Car LimitedInventor: James W. Forbes
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Patent number: 7025003Abstract: A center beam rail road car has a center sill that runs along the car from end to end. The center sill is dog-legged, having end portions mounted over rail car trucks, and a downwardly stepped central portion between the trucks. A central beam assembly stands upwardly of the center sill. A lading supporting deck structure extends laterally to either side of the center sill. The deck structure has a depressed medial portion between the trucks, and raised end portions over the trucks. The deck portions have lading bearing interfaces. The medial portion of the center sill has a top flange that is carried at a height that lies flush with, or below, the level of the lading bearing interface of the medial portion of the center sill. In one embodiment, a column member for carrying buff and draft loads is spaced upwardly from the medial portion of the center sill.Type: GrantFiled: May 9, 2003Date of Patent: April 11, 2006Assignee: National Steel Car LimitedInventors: Mohamed A. Khattab, David J. Keats
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Patent number: 7004079Abstract: An autorack rail road car is provided with a truck that includes a pair of sideframes supported on wheel sets with bearing adapters positioned therebetween. The bearing adapters and the sideframes have associated parts or surfaces with curvatures configured to permit lateral swinging of the sideframes. A bolster is supported by the sideframes, and sets of laterally arranged dampers are provided therebetween to control the relationship between the sideframes and the bolster.Type: GrantFiled: January 31, 2003Date of Patent: February 28, 2006Assignee: National Steel Car LimitedInventor: James W. Forbes
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Patent number: 6983702Abstract: A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented central beam structure. The center beam so formed defines bunks in which to carry cargo. The upper region of the web-work structure includes a top chord mounted to run between two end bulkheads. The deck has a central portion and end portions. The end portions of the deck are carried at a greater height than the center portion, the difference in height corresponding to the height of a bundle of lumber. The car has a center sill having a depth corresponding to the depth of the step in the deck. The end portion of the center sill has an internal plate defining a draft gear pocket upper wall. The medial portion of the center sill is narrower than the end portion, and of deep section, such that it has a high aspect ratio.Type: GrantFiled: March 15, 2004Date of Patent: January 10, 2006Assignee: National Steel Car LimitedInventor: James W. Forbes
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Publication number: 20050263033Abstract: A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented web work structure for carrying vertical shear loads between the top truss and the center sill and decking. The center beam so formed defines bunks upon in which to carry cargo. The upper region of the web-work structure includes a deep upper beam structure that has downwardly extending skirts. The skirts provide an extended bearing area upon against which bundled loads can be secured. The skirts are inwardly reinforced to discourage deflection between adjacent upright members of the deep upper beam structure.Type: ApplicationFiled: July 29, 2005Publication date: December 1, 2005Applicant: National Steel Car LimitedInventor: James Forbes
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Patent number: 6968788Abstract: A rail road car has a deck for carrying wheeled vehicles. The vehicles are loaded from the ground by use of a movable ramp that is positioned next to a separate coupler end of the rail road car. The car has deck access fittings mounted between the trucks near a collapsible hitch to provide access to the highway trailer landing gear crank, and flush mounted internal bridge plates. The rail road car has side sills having flared ends to act as a guide for the highway trailers as they are backed up. The hitch is trimmed to a relatively narrow width to lessen the likelihood of fouling the tyres of the highway trailer bogies.Type: GrantFiled: August 29, 2000Date of Patent: November 29, 2005Assignee: National Steel Car LimitedInventor: Ilario A. Coslovi
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Patent number: RE39777Abstract: A center beam car has a main deck structure extending laterally from a main center sill, a laterally extending top truss structure, and a central vertically oriented central beam structure. The center beam so formed defines bunks upon which to carry cargo. The upper region of the web-work structure includes a top chord mounted to run between two end bulkheads. The deck has a central portion and end portions. The end portions of the deck are carried at a greater height than the center portion, the difference in height corresponding to the height of a bundle of lumber. The car has a center sill having a depth corresponding to the depth of the step in the deck. The end portion of the center sill has an internal plate defining a draft gear pocket upper wall. The medial portion of the center sill is narrower than the end portion, and of deep section, such that it has a high aspect ratio.Type: GrantFiled: August 11, 2005Date of Patent: August 21, 2007Assignee: National Steel Car LimitedInventors: James W. Forbes, Mohamed A. Khattab