Abstract: A gondola car has a door and an associated door frame the end. The door hangs hingedly from the header of the frame. The header runs across the top of the door opening and is connected to the top chords at either side. The door posts are positioned inside the side sheets and tie into the header at each upper corner. The side sheets lap onto the door posts to allow longitudinal adjustment of the side assemblies and the door frame relative to each other, at assembly. The side posts are connected to the header with a tie plate that is bolted to both members. The car may also have a tarp dome at each end. The tarp dome has non-welded connections that have play to permit the tarp dome to accommodate movement of the top chords.

Abstract: A wagon and a car body assembly thereof are provided. The car body assembly includes at least two bogies, an underframe and a car body both supported on the two bogies, the car body includes a middle car body, and a discharge opening of the middle car body is arranged between the two bogies, and at least one end of the middle car body is further provided with an end car body, and a predetermined space is defined above the respective bogie by adjacent end walls of the middle car body and the end car body.

Abstract: A covered hopper railcar includes a roof portion and a plurality of side portions coupled to the roof portion. The plurality of side portions and the roof portion at least partially define a longitudinal centerline axis and a transverse centerline axis that is substantially perpendicular to the longitudinal centerline axis. The covered hopper railcar also includes a bottom assembly coupled to the side portions. The bottom assembly includes a plurality of bottom side sheets and a trough assembly coupled to the plurality of bottom side sheets. The trough assembly is substantially parallel to and substantially aligned with the longitudinal centerline axis.

Abstract: Bulk material storage units that can be placed on flatbeds that can be hauled in various manners, including rail cars or trucks, to the destination and removed from the flatbed for temporary storage at the destination, freeing the transportation mode, e.g., rail cars or trucks, to be used elsewhere. Embodiments of the bulk material storage unit of the present invention replace rail hopper cars or truck trailers to hold the bulk material during transportation as well as provide temporary storage at the desired location, e.g., the origin or destination, without tying up transportation resources.

Abstract: A vehicle roof stiffener includes a metal or metal alloy frame defining a central opening and at least one corner. The vehicle roof stiffener also includes a fiber reinforced polymer (FRP) portion including at least one transition structure comprising a metal or a metal alloy. At least some of the fibers of the FRP portion are embedded in the transition structure. The FRP portion is located in the at least one corner. In some examples, the frame includes an opening in the at least one corner, and the FRP portion spans the opening. In other examples, the FRP portion overlaps the frame at the at least one corner. The FRP portion located at the corner may improve rigidity of the roof stiffener to increase resistance to a racking motion and increase the overall stiffness of the vehicle.

Abstract: The present invention is directed to a rigid cover for a bottom dump trailer tank having a storage region with an open top used to transport bulk material. The rigid cover includes cover side walls having a top wall perimeter and a bottom wall perimeter and is configured along the bottom wall perimeter to correspond in shape with the open top of the trailer tank. The rigid cover includes a cover top connected to the cover side walls along the top wall perimeter and includes one or more ports in the top. The rigid cover includes cover fasteners mounted along the bottom wall perimeter configured to secure the plurality of cover side walls to the trailer tank so the traditional storage region of the trailer tank is transformed into an expanded storage region that allows storage of more bulk material than could otherwise be stored in the trailer tank alone.

Abstract: Systems, methods and apparatus are provided for entraining seed into a plurality of seed supply lines. Some embodiments enable selective prevention of seeds from entering a subset of seed supply lines. Some embodiments enable improved flow of seed through an entrainer by angled surfaces provided on blocking members disposed to selectively block seed from entering seed supply lines.

Abstract: A covered hopper railcar includes a roof portion and a plurality of side portions coupled to the roof portion. The plurality of side portions and the roof portion at least partially define a longitudinal centerline axis and a transverse centerline axis that is substantially perpendicular to the longitudinal centerline axis. The covered hopper railcar also includes a bottom assembly coupled to the side portions. The bottom assembly includes a plurality of bottom side sheets and a trough assembly coupled to the plurality of bottom side sheets. The trough assembly is substantially parallel to and substantially aligned with the longitudinal centerline axis.

Abstract: A railroad open top hopper car comprises a pair of spaced trucks a railcar body, the body comprising a pair of side structures railcar, wherein each including (i) a top chord extending the side structure length, (ii) a plurality of upper side stakes extending from the top chord, (iii) an intermediate side chord extending the side structure length and below the top chord and coupled to the upper side stakes, (iv) a plurality of lower side stakes extending from the intermediate side chord, and (v) a side sill extending the length and below the intermediate side chord and coupled to the lower side stakes. The body forms discharge chutes forming pockets for the body with a plurality of intermediate doors and end doors, wherein the end doors are larger than the intermediate doors. Each door may include a biased door seal.

Abstract: A bottom discharge open topped hopper car has a center sill with a bottom flange having laterally protruding edges. A shed plate assembly is provided to discourage accumulation of product on the exposed upwardly facing shelf otherwise presented by the bottom flange protrusions. The shed plate assembly may be mounted to the center sill in a manner that avoids impairment of the stress performance of the flanges of the center sill, whether by mechanical fastenings to other objects, or welding to objects that are not the center sill. The shed plate assembly may have walls having upper margins that are higher than the upper extremity of the hopper discharge opening such that the shelf of the center sill bottom flange is in the lee of, or sheltered by, the shed plate. The lading may thereby move under the influence of gravity past the shed plate to its desired unloading receptacle.

Abstract: A railcar door sealing assembly includes a first door seal member coupled to a first door plate of a first door of the railcar. The door sealing assembly also includes a second door seal member coupled to a second door plate of a second door of the railcar. The first door seal member at least partially overlaps with the second door seal member in a face-to-face relationship when the first door and the second door are in the closed position.

Abstract: An apparatus for moving proppant from a container has a frame with a surface for suitable for receiving a container thereon, a hopper affixed to the frame, and a conveyor having a surface positioned below the hopper. The hopper has an opening at or adjacent to a lower end thereof. The hopper is suitable for receiving proppant from the container. The surface of the conveyor is suitable for receiving the proppant a discharged through the opening of the hopper. A receptacle is translatably positioned at the surface of the frame. A metering gate is translatably positioned adjacent to the opening of the hopper.

Abstract: A open top railcar comprises a railcar body supported on the spaced trucks, the body comprising side and end structures on the railcar, and a top chord extending the length of the side structures and the width of the end structures, wherein the top chord includes an inwardly sloped top surface for discharging lading toward the railcar interior. The railcar may further include corner cap, or end cap members, including inwardly sloped lading discharging top surfaces. The railcar may be a hopper railcar having discharge chutes forming body pockets opening into the interior with pneumatic doors having manual override for each door. The railcar may include a nonmetallic touch pad housing secured to the side structures and including a plurality of touch plates mounted in the housing configured for operating selective individual doors and combination of doors.

Abstract: A dry goods bulk trailer for transporting fluidic dry goods includes a frame supported on rear wheels and arranged for connection at a front end to a towing vehicle. A containment structure on the frame assembly for supporting the fluidic dry goods therein includes front and rear slope wall assemblies which slope downwardly and inwardly towards centrally located bottom discharge hoppers. Each slope wall assembly includes an inner panel, an outer panel and at least one internal structural member joined between the panels to provide sufficient structural support to enable the slope wall assembly to be only supported on the trailer frame about its perimeter. The inner panel is joined to the structural member without fasteners so that the inner surface thereof is substantially uninterrupted for easier cleanout. The outer surface of the outer panel is uninterrupted by frame members to minimize collection of snow and ice thereon.

Abstract: A railroad open top hopper car comprises a pair of spaced trucks a railcar body, the body comprising a pair of side structures railcar, wherein each including (i) a top chord extending the side structure length, (ii) a plurality of upper side stakes extending from the top chord, (iii) an intermediate side chord extending the side structure length and below the top chord and coupled to the upper side stakes, (iv) a plurality of lower side stakes extending from the intermediate side chord, and (v) a side sill extending the length and below the intermediate side chord and coupled to the lower side stakes. The body forms discharge chutes forming pockets for the body with a plurality of intermediate doors and end doors, wherein the end doors are larger than the intermediate doors. Each door may include a biased door seal.

Abstract: A railroad hopper car discharge outflow is controlled by closure members, at least one of which is movable. The closure members (or doors) are hingeless, being mounted on four bar linkages, such that the distal edge of the doors sweeps predominantly horizontally while the proximal edge of the door moves predominantly upwardly. The doors move through noncircular arcs, such that the size of the vertically projected door opening is abnormally large compared to the clearance heights of the door during opening and closing. The doors are driven by a transverse drive linkage that is driven by a transversely mounted actuator. The actuator may be mounted in an accommodation in the lee of slope sheets between adjacent hoppers in a mid-span portion of the car. Drive from the actuator is carried to a pair of symmetrically mounted doors through drive train linkages.

Abstract: A railroad open top hopper car comprises a pair of spaced trucks supporting a railcar body, the body comprising a pair of side structures railcar, wherein each including (i) a top chord extending the side structure length, (ii) a plurality of upper side stakes extending from the top chord, (iii) an intermediate side chord extending the side structure length and below the top chord and coupled to the upper side stakes, (iv) a plurality of lower side stakes extending from the intermediate side chord, and (v) a side sill extending the length and below the intermediate side chord and coupled to the lower side stakes. The body forms discharge chutes forming pockets for the body with a plurality of intermediate doors and end doors, wherein the end doors are larger than the intermediate doors. Each door may include a biased door seal.

Abstract: A hopper car discharge outflow is controlled by closure members, at least one of which is movable. The doors are hingeless, being mounted on four bar linkages, such that the distal edge of the doors sweeps predominantly horizontally while the proximal edge of the door moves predominantly upwardly. The doors move through noncircular arcs, such that the size of the vertically projected door opening is abnormally large compared to the clearance heights of the door. The doors are driven by a transverse drive linkage that is driven by a transversely mounted actuator. The actuator is mounted in an accommodation in the lee of slope sheets between adjacent hoppers in a mid-span portion of the car. Drive from the actuator is carried to a pair of symmetrically mounted doors through drive train linkages. The drive train includes longitudinally extending torque tubes that transmit drive to both fore and aft ends of the door assemblies.

Abstract: A railway hopper car is provided. The railway hopper car includes an upper portion and a lower portion. The upper portion includes first and second sidewalls, and first and second end walls. The lower portion includes at least two cargo wells and a longitudinal boundary extending between the cargo wells. The upper and lower portions define an interior volume of the hopper car. The railway hopper car further includes a roof panel and a first support assembly. The roof panel includes an access opening extending longitudinally over at least a portion of the cargo wells. The first support assembly is coupled to an inner surface of the first sidewall, and extends between a top edge and a bottom edge of the first sidewall. The first support assembly is positioned proximate to the longitudinal boundary, and is configured to only partially extend into the interior volume of the hopper car.

Abstract: A hopper car discharge outflow is controlled by closure members, at least one of which is movable. The doors are hingeless, being mounted on four bar linkages, such that the distal edge of the doors sweeps predominantly horizontally while the proximal edge of the door moves predominantly upwardly. The doors move through noncircular arcs, such that the size of the vertically projected door opening is abnormally large compared to the clearance heights of the door. The doors are driven by a transverse drive linkage that is driven by a transversely mounted actuator. The actuator is mounted in an accommodation in the lee of slope sheets between adjacent hoppers in a mid-span portion of the car. Drive from the actuator is carried to a pair of symmetrically mounted doors through drive train linkages. The drive train includes longitudinally extending torque tubes that transmit drive to both fore and aft ends of the door assemblies.

Abstract: A railway hopper car is provided. The railway hopper car includes an upper portion and a lower portion. The upper portion includes first and second sidewalls, and first and second end walls. The lower portion includes at least two cargo wells and a longitudinal boundary extending between the cargo wells. The upper and lower portions define an interior volume of the hopper car. The railway hopper car further includes a roof panel and a first support assembly. The roof panel includes an access opening extending longitudinally over at least a portion of the cargo wells. The first support assembly is coupled to an inner surface of the first sidewall, and extends between a top edge and a bottom edge of the first sidewall. The first support assembly is positioned proximate to the longitudinal boundary, and is configured to only partially extend into the interior volume of the hopper car.

Abstract: A railroad gondola car has a hopper carried between two trucks. The hopper has convergent end and side slope sheets that feed a bottom discharge. The bottom discharge has a pair of longitudinal doors. The door closing mechanism is a mechanical transmission that includes a set of linkages running from the door to a reciprocating pneumatic cylinder. The linkages run generally parallel to the slope sheet. The car has a very short draft installation that includes a removable coupler carrier bar, and the main shear plate has a removable draft gear installation panel. There is a machinery space above the end section shear plate. It is overhung by the slope sheet that is substantially unobstructed by any other primary structure. The pneumatic cylinder is mounted on an angle in this unobstructed machinery space, oriented longitudinally over the draft sill beneath the main drag link of the mechanical transmission, and above the main pivot of the driving input lever of the transmission.

Abstract: A system for monitoring railroad cars comprising a hatch cover assembly including a cover body, a sensor, a wireless transmitter for transmitting data received from the sensor, a wireless receiver for receiving the data from the wireless transmitter, and a satellite transmitter for transmitting the data to a satellite. The wireless receiver and the satellite transmitter are attached to the hatch cover assembly. In one embodiment, the sensor is a pressure sensor having a sensing unit situated in the plenum of a vented hatch cover. In another embodiment, the sensor is an air flow sensor having a sensing unit situated in the plenum of a vented hatch cover. In another embodiment, the sensor is a chain tension sensor attached to a handbrake chain. In another embodiment, the sensor is a hatch cover position attached to the hatch cover assembly.

Abstract: A open top railcar comprises a pair of spaced trucks, a railcar body supported on the trucks, the body comprising a pair of side structures on opposed sides of the railcar and a pair of end structures on opposed ends of the railcar, and a top chord extending the length of the side structures and the width of the end structures, wherein the top chord includes an inwardly sloped top surface configured to discharge lading toward the interior of the railcar through gravity. The railcar may further include corner cap, or end cap members, with each corner cap, or end cap including inwardly sloped top surface configured to discharge lading toward the interior of the railcar through gravity. The railcar may be a hopper railcar having a plurality of discharge chutes forming pockets for the body which open to the interior with a plurality of door operated through a pneumatic door operating system and further including a manual door operating override for each door.

Abstract: An hollow railroad car may be a have a lading containment structure that is a pressure vessel. The car may be a covered hopper car having one or more hopper discharge sections. Each hopper discharge section may include a transition from a substantially rectangular upper inlet to a substantially circular outlet. The transition may include developed plate formed as partial conic sections fitted as valleys between respective pairs of fore-and-aft slope sheets and side slope sheets. The car may have substantially planar internal ring reinforcement assemblies that serve to form a jig and a welding surface for the fore-and-aft slope sheet, a self-jig for the skins of the side wall and roof sheets, and which define buckling nodes for longitudinal compression of the car. The rings form local T-sections in combination with the adjacent wall skins, and do not employ out-of-plane formed sections such as hat sections. The reinforcement may be fabricated from flat sheet or flat bar.

Abstract: A lightweight hopper car that includes one or more reinforcing members at specified locations, so that the hopper car has both a carrying capacity and a structural strength comparable to those of existing, heavier hopper cars. Specifically, the present application discloses that the hopper car may be reinforced at one or more locations including (i) at selective intersections between the center sill and slope sheets of cargo wells; (ii) between side slope sheets of adjacent cargo wells; (iii) at the junction between the side sheets and end slope sheets of the hopper car; and (iv) along the end combing seal between opposed carlines, if the hopper car is covered. In addition, the present application discloses a novel means of reinforcing side sheets of a rail car, including hopper cars, against the warping that commonly occurs when welding the side sheets at the car is fabricated.

Abstract: A hopper car discharge section may be wide at the top and narrow at the bottom. Outflow is controlled by movable closure members. The hopper car has a plurality of hoppers of which two hoppers share a common ridge assembly. The ridge assembly forms a common mating and fit up location for the upper margins of the slope sheets of two lengthwise adjacent hoppers. The ridge assembly includes an horizontal center section and two end plates that angle upwardly outboard toward the top chords of the sidewalls. The ridge assembly stands proud of the upper margin of the respective adjacent slope sheets. A gusset is mounted between the adjacent slope sheets below the ridge plate such that the slope sheets and gusset form a reinforcement tube running across the car, the end plates forming the stems of a vertical T-section attached to the sidewall and overlapping the top chord.

Abstract: A hopper car has arcuate side sheets that are bent over the forming members of the structure to give a generally outwardly bulging shape. The upper margin of the side sheet is kinked inwardly of the radius of curvature of the larger portion of the side sheet more generally, such as may tend to impose a bending moment on the large, relatively thin side sheet panels. This may in turn tend to urge or bias those panels to a bulging position or shape, rather than a sagging, deflected, or inwardly dented position.

Abstract: A hopper car having an increased volume. The car has side walls, end walls, a bottom, and first and second sloping surfaces. The bottom lies at least partially in a horizontal plane and includes a plurality of spaced apart openings. The side walls, end walls, and horizontal plane define a volume X. The first and second sloping surfaces are located between adjacent openings and joined to the bottom adjacent the openings. The sloping surfaces extend upwardly from the bottom to present an inverted V enclosing a volume Y. The volume Y is no more than approximately 1 to 5% of the volume X.

Abstract: A hopper car discharge section may be wide at the top and narrow at the bottom. Outflow is controlled by movable closure members. The hopper car has a plurality of hoppers of which two hoppers share a common ridge assembly. The ridge assembly forms a common mating and fit up location for the upper margins of the slope sheets of two lengthwise adjacent hoppers. The ridge assembly includes an horizontal center section and two end plates that angle upwardly outboard toward the top chords of the sidewalls. The ridge assembly stands proud of the upper margin of the respective adjacent slope sheets. A gusset is mounted between the adjacent slope sheets below the ridge plate such that the slope sheets and gusset form a reinforcement tube running across the car, the end plates forming the stems of a vertical T-section attached to the sidewall and overlapping the top chord.

Abstract: An hollow railroad car may be a have a lading containment structure that is a pressure vessel. The car may be a covered hopper car having one or more hopper discharge sections. Each hopper discharge section may include a transition from a substantially rectangular upper inlet to a substantially circular outlet. The transition may include developed plate formed as partial conic sections fitted as valleys between respective pairs of fore-and-aft slope sheets and side slope sheets. The car may have substantially planar internal ring reinforcement assemblies that serve to form a jig and a welding surface for the fore-and-aft slope sheet, a self-jig for the skins of the side wall and roof sheets, and which define buckling nodes for longitudinal compression of the car. The rings form local T-sections in combination with the adjacent wall skins, and do not employ out-of-plane formed sections such as hat sections. The reinforcement may be fabricated from flat sheet or flat bar.

Abstract: An actuating system for operating transverse doors of a railroad hopper car. The mechanism includes an operating member which is coupled to a door or doors of the car by a shaft and a linkage which couples a power source to the operating member, where the operating member rotates to move the door away from the hopper. The mechanism can operate doors which open in opposed direction with a single power source. The mechanism can be used in new car construction, and can be retrofitted onto existing hopper cars.

Abstract: A hopper car having an increased volume. The car has side walls, end walls, a bottom, and first and second sloping surfaces. The bottom lies at least partially in a horizontal plane and includes a plurality of spaced apart openings. The side walls, end walls, and horizontal plane define a volume X. The first and second sloping surfaces are located between adjacent openings and joined to the bottom adjacent the openings. The sloping surfaces extend upwardly from the bottom to present an inverted V enclosing a volume Y. The volume Y is no more than approximately 1 to 5% of the volume X.

Abstract: A railcar with discharge control system is disclosed. In one embodiment, a railway car includes an underframe and at least one hopper for transporting lading. The railway car further including the underframe including a center sill which defines in part a longitudinal axis of the railway car. A discharge opening formed proximate to a lower portion of the hopper. A respective door assembly pivotally mounted adjacent to the discharge opening to control the flow of lading from the hopper. The door assembly operable for movement between a first, closed position and a second, open position relative to the discharge opening. A discharge control system operable to move the door assembly between the first position and the second position. The discharge control system operably moves generally longitudinally along the axis of the railway car to move the door assemblies between the first, closed position and the second, open position.

Abstract: A hopper car discharge section may be wide at the top and narrow at the bottom. Outflow is controlled by closure members, at least one of which is movable. The closure members come together to a closed condition or position for retaining lading. When apart, in an open position or condition, lading may be discharged. A seal member or seal member assembly is mounted to one or both of the closure members. When open, the seal member or seal member assembly lies substantially flush with, or shy of, the slope of the surface of the closure member. When closed, the seal member may be self-energizing, in the sense that as lading is added the seal may tend to seal more tightly. The seal assembly may include a cantilevered spring that presents a land to the opposed closure member, and a fulcrum, over, or across, which the spring is cantilevered, such that pushing down on one end of the spring may tend to cause the other end to flex upward.

Abstract: A lightweight hopper car that includes one or more reinforcing members at specified locations, so that the hopper car has both a carrying capacity and a structural strength comparable to those of existing, heavier hopper cars. Specifically, the present application discloses that the hopper car may be reinforced at one or more locations including (i) at selective intersections between the center sill and slope sheets of cargo wells; (ii) between side slope sheets of adjacent cargo wells; (iii) at the junction between the side sheets and end slope sheets of the hopper car; and (iv) along the end combing seal between opposed carlines, if the hopper car is covered. In addition, the present application discloses a novel means of reinforcing side sheets of a rail car, including hopper cars, against the warping that commonly occurs when welding the side sheets at the car is fabricated.

Abstract: A model train freight car and a method of manufacturing the same. An aluminum model freight train car body is extruded through a die. At least one accessory is attached to the freight car body. The model train freight car weight ranges from about 1.0 lbs. to about 1.75 lbs.

Abstract: A railway car includes a first end, a second end, and a first side disposed longitudinally between the first end and the second end. The first side includes a concave portion in a generally horizontal plane of the railway car. The concave portion provides a railway car with increased cargo-carrying capacity.

Abstract: A dual hopper rail car is converted from a three-hopper rail car. The converted rail car includes a pair of hoppers with each hopper including a discharge opening for discharging contents of the hopper. A center sill, pair of top chords, a pair of side sills and a pair of side sheets extend along the length of the converted rail car and each includes a welded splice connection. The welded splice connection of each side sheet is adjacent and between a pair of side stakes with a tie plate extending between the pair of side stakes. The method of converting the three-hopper rail car to the two-hopper rail car includes: severing the three-hopper rail car into a first end section, a second end section and a center section that includes the center hopper and a portion of an adjacent hopper; removing the center section; and attaching the first end section to the second end section.

Abstract: A discharge gate assembly for a railroad hopper car is disclosed. The gate assembly includes a frame defining a discharge opening and a gate or first element slidably carried on the frame for controlling the discharge of material from the hopper car through the discharge opening. The gate assembly further includes a second slidable element carried by the frame in vertically spaced relation relative to the first element and extending across the discharge opening. A first drive mechanism including a first operating shaft assembly is mounted on the gate frame for slidably moving the first element relative to the frame. A second drive mechanism including a second operating shaft assembly is also mounted on the gate frame for slidably moving the second element relative to the gate frame. The operating shaft assemblies are mounted for rotation about independent fixed axes and in horizontally adjacent relation relative to each other.

Abstract: A side sheet assembly for a rail car having a pair of horizontally extending upper and lower side sheets form with a plurality of longitudinally extending strengthening ribs. The upper and lower side sheets are affixed to each other at a horizontal seam to either form flat connection or a rib at the horizontal seam.

Abstract: A pressure discharge railway hopper car includes a car body having a plurality of hoppers arranged in adjacent relation longitudinally, each opening at the bottom end to an aerator tub assembly. Each aerator tub assembly has two aerator units, one on each side laterally of the longitudinal centerline of the car body, defined by downwardly convergent inclined walls. An outlet from each aerator unit is connected to a product discharge conduit that leads substantially horizontally and laterally toward the centerline of the car body to a generally L-shaped discharge pipe. Each discharge pipe may include a longitudinal leg that runs between the two sections along the car centerline and a lateral leg extending transversely to the centerline to an outlet end laterally outwardly of the aerator tub assembly, where it is connected to a main discharge pipe.

Abstract: A large capacity car body for a pressure discharge railway hopper car has a plurality of end slope plates assemblies, each having a slope sheet, and a plurality of intermediate slope sheet units, each of inverted “V” shape. The intermediate slope sheet units and the end slope plates form the end walls of a plurality of hoppers. A crossridge frame is associated with each of the intermediate slope sheet units and together with the end frames supports side sheets and a top sheet. Top chord members and bottom chord members extend coextensively with and are welded to upper and lower edge portions of each side sheet. Edge portions of the top sheet overlap and are welded to upper leg portions of the two top chord members. The crossridge frames and chord members considerably increase the resistance of the side sheets and top sheet to deforming when the car body is pressurized during unloading.

Abstract: A railway car includes a first end, a second end, and a first side disposed longitudinally between the first end and the second end. The first side includes a concave portion in a generally horizontal plane of the railway car. The concave portion provides a railway car with increased cargo-carrying capacity.

Abstract: An aerator pad for a railroad hopper car has a fabric body member that overlies an aeration assembly slope sheet. The body member has a perimeter portion with indentations formed in the edges thereof. A gasket is molded to the perimeter of the body member. Bolt holes in the gasket are spaced from the fabric so that no edge or perimeter portion of the fabric is exposed to atmosphere. The gasket is located between mating flanges of the aeration assembly and car body. Spacer buttons lift the body member off the slope sheet and a wear pad prevents vibration induced deterioration at the gas inlet opening in the slope sheet.

Abstract: A transition section for a railway hopper car carries structural loads from an endmost hopper of the hopper car into the hopper car end structure, whence the loads are transferred to and from other cars via the coupler, and into the rail car truck. The sidewall of the endmost hopper has an extension that mates smoothly with a curved flange extending from the hopper end structure, such that the transition varies smoothly in section.

Abstract: A lightweight hopper-type rail car provides for a smooth exterior surface so as to minimize aerodynamic drag thereon when the car is in motion. The railcar includes a cross ridge arrangement which greatly increases the fabrication efficiency of the car as well as providing a smooth interior surface so as to allow the maximum release of bulk material contained within the car.

Abstract: A moisture barrier seal for use on a hopper car hatch opening that does not need to be removed before vacuum unloading of the hopper car due to the use of a grained plastic such as vertically drawn or cast polyethylene which will rupture as soon as the seal is subjected to the pressure differential across the seal created by the application of vacuum to the hopper car. The moisture barrier layer when combined with a filter layer forms a combination moisture barrier and filter seal.

Abstract: The invention provides a railroad car adapted to transport bulk commodities such as coal, mineral ores, or the like yet efficiently and safely haul bladders filled with flowable commodities. The railcar includes a rugged bracing configuration which enables the railcar to readily transport bulk commodities in standard industry volumes, and within existing industry standards for material handling procedures such as flood loading of coal and rotary dumping of coal cars. The bracing configuration, floor layout, and car dimensions also permit the use of a maximum volume of bladders for effective hauling of materials in such bladders while avoiding undue wear and tear on the bladders. The bracing generally consists of at least one brace including a lower horizontal strut, an upper horizontal strut, and a generally vertical strut member. The bracing allows the railcar to handle bulk commodities such as coal while eliminating surges in bladders filed with flowable products.

Abstract: A pneumatic discharge system is provided for a pressurized hopper car to allow the hopper car to carry an enlarged material discharge line. A discharge assembly is used to connect the outlet from each hopper section of the railway car with the discharge line. The discharge assembly is manufactured from pipe having the same dimensions as the discharge line. The discharge assembly allows installing a relatively large diameter discharge line onto an existing pressurized hopper car to optimize unloading of flowable materials without requiring modification to the existing pressurized hopper car. The discharge assembly may include components manufactured from pipe having an outside diameter larger than the clearance between the lower portions of the hopper car and the vertical clearance line of the railway track.