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 longitudinal shaft that is mounted within the center sill. It drives a set of single input, double output bell cranks that drive adjacent pairs of doors, and that employs an over-center toggle to hold the doors in the closed position when the car is laded. The actuators may be mounted in shelters midway along the car, and may be offset from the centersill. The actuators may be mounted predominantly vertically such that gravity may obviate the need for a secondary lock. The doors of a transverse car need not all be of the same size. The over center may include a manual release having a fulcrum with a progressive decrease in mechanical advantage.

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 longitudinal shaft that is mounted within the center sill. It drives a set of single input, double output bell cranks that drive adjacent pairs of doors, and that employs an over-center toggle to hold the doors in the closed position when the car is laded. The actuators may be mounted in shelters midway along the car, and may be offset from the centersill. The actuators may be mounted predominantly vertically such that gravity may obviate the need for a secondary lock. The doors of a transverse car need not all be of the same size. The over center may include a manual release having a fulcrum with a progressive decrease in mechanical advantage.

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 longitudinal shaft that is mounted within the center sill. It drives a set of single input, double output bell cranks that drive adjacent pairs of doors, and that employs an over-center toggle to hold the doors in the closed position when the car is laded. The actuators may be mounted in shelters midway along the car, and may be offset from the centersill. The actuators may be mounted predominantly vertically such that gravity may obviate the need for a secondary lock. The doors of a transverse car need not all be of the same size. The over center may include a manual release having a fulcrum with a progressive decrease in mechanical advantage.

A railcar system that includes a railcar and a nested sliding gate assembly disposed within the railcar. The nested sliding gate assembly includes an upper deck, a lower deck, and a driving system. The upper deck has a plurality of holes. The lower deck is positioned below the upper deck and has a plurality of discharge ports. The driving system positions the lower deck in a first position with respect to the upper deck, where the holes of the upper deck and the discharge ports of the lower deck do not align when the lower deck is in the first position. The driving system also positions the lower deck in a second position with respect to the upper deck, where the holes of the upper deck and the discharge ports of the lower deck at least partially align when the lower deck is in the second position.

An autonomous ballast consist for unloading ballast along a railway and methods for unloading ballast thereby. The consist includes a plurality of ballast cars and at least one control car. The control car includes a controller, a navigation system, and electric, hydraulic, or pneumatic generators that power the hopper cars. The controller employs the navigation system to determine the location of the consist relative to a track survey indicating locations and amounts of ballast to be unloaded. The controller instructs the hopper cars to open/close ballast doors to dump appropriate amounts of ballast in desired locations. The controller also monitors the status of the hopper cars and the accuracy of the navigation system to automatically adjust the operational state of the consist relative thereto. The unloading operation is carried out automatically, without need for operator intervention, and without risk of damage to railroad facilities.

An autonomous ballast consist for unloading ballast along a railway and methods for unloading ballast thereby. The consist includes a plurality of ballast cars and at least one control car. The control car includes a controller, a navigation system, and electric, hydraulic, or pneumatic generators that power the hopper cars. The controller employs the navigation system to determine the location of the consist relative to a track survey indicating locations and amounts of ballast to be unloaded. The controller instructs the hopper cars to open/close ballast doors to dump appropriate amounts of ballast in desired locations. The controller also monitors the status of the hopper cars and the accuracy of the navigation system to automatically adjust the operational state of the consist relative thereto. The unloading operation is carried out automatically, without need for operator intervention, and without risk of damage to railroad facilities.

A baffle comprising a panel body that is mountable on a wall of a hopper adjacent to an edge of an outlet of a hopper and is arrangeable in a projecting position, to project in a generally downwardly direction beyond the edge of the outlet so as to restrict the spread of bulk commodities past the panel body as the bulk commodities discharge through the outlet. The panel body is arrangeable in the projected position to project in a generally downwardly direction beyond the edge of the outlet and between a gap space defined by the edge of the outlet and an outlet cover arranged in an open position. The baffle may comprise rotatable mounting means for rotatably mounting the panel body on the wall of the hopper such that the panel body is movable between the projected position and a retracted position, where the panel body is arranged so as to provide a minimal or no barrier effect. The baffle may comprise drive means to drive the panel body between the projected position and the extended position. The drive means may be self-actuating means and the self-actuating means are optionally configured to incite the rotation of the panel body between the projected position and the retracted position as the outlet cover moves between an open position and a closed position. The self-actuating means may comprise slidable coupling means for slidably coupling the panel body to the outlet cover and optionally the slidable coupling means comprise one or more low friction contact members mounted on a lower edge and/or side edge of the panel body and arranged in mating contact with the outlet cover.

A baffle comprising a panel body that is mountable on a wall of a hopper adjacent to an edge of an outlet of a hopper and is arrangeable in a projecting position, to project in a generally downwardly direction beyond the edge of the outlet so as to restrict the spread of bulk commodities past the panel body as the bulk commodities discharge through the outlet. The panel body is arrangeable in the projected position to project in a generally downwardly direction beyond the edge of the outlet and between a gap space defined by the edge of the outlet and an outlet cover arranged in an open position. The baffle may comprise rotatable mounting means for rotatably mounting the panel body on the wall of the hopper such that the panel body is movable between the projected position and a retracted position, where the panel body is arranged so as to provide a minimal or no barrier effect. The baffle may comprise drive means to drive the panel body between the projected position and the extended position. The drive means may be self-actuating means and the self-actuating means are optionally configured to incite the rotation of the panel body between the projected position and the retracted position as the outlet cover moves between an open position and a closed position. The self-actuating means may comprise slidable coupling means for slidably coupling the panel body to the outlet cover and optionally the slidable coupling means comprise one or more low friction contact members mounted on a lower edge and/or side edge of the panel body and arranged in mating contact with the outlet cover.

Methods and systems are provided for a door-actuating assembly that utilizes a pick-up shoe and a rechargeable battery to minimize the occurrence of rail sparks inside dump sites. The door-actuating assembly includes a pick-up shoe, a battery electrically connected to the pick-up shoe, a hermetically sealed switch electrically connected to the battery, and an electro-pneumatic valve electrically connected to the hermetically sealed switch. The battery is rechargeable via the pick-up shoe when the pick-up shoe is biased into an active position having physical contact with a wayside conductor rail; the electro-pneumatic valve actuates the bottom discharge door between an open position and a closed position, after the battery is charged beyond a pre-determined state of charge, and after the pick-up shoe is biased into an inactive position not having physical contact with the wayside conductor rail. Railroad hopper cars comprising such door-actuating assemblies, and methods of operation are also provided.

Methods and systems are provided for a door-actuating assembly that utilizes a pick-up shoe and a rechargeable battery to minimize the occurrence of rail sparks inside dump sites. The door-actuating assembly includes a pick-up shoe, a battery electrically connected to the pick-up shoe, a hermetically sealed switch electrically connected to the battery, and an electro-pneumatic valve electrically connected to the hermetically sealed switch. The battery is rechargeable via the pick-up shoe when the pick-up shoe is biased into an active position having physical contact with a wayside conductor rail; the electro-pneumatic valve actuates the bottom discharge door between an open position and a closed position, after the battery is charged beyond a pre-determined state of charge, and after the pick-up shoe is biased into an inactive position not having physical contact with the wayside conductor rail. Railroad hopper cars comprising such door-actuating assemblies, and methods of operation are also provided.