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.

According to some embodiments, a railcar comprises: an underframe comprising a center sill extending longitudinally along a centerline of the railcar; a hopper coupled to the underframe and comprising a discharge opening; and a discharge assembly coupled to the hopper. The discharge assembly comprises: a sloped side sheet, and a discharge gate frame in a plane offset from horizontal and extending from a bottom of the sloped side sheet to proximate the center sill. The discharge gate frame at least partially surrounds the discharge opening. The discharge assembly further comprises a discharge gate coupled to the discharge gate frame. The discharge gate is operable to move from a closed position that restricts a lading from discharging to an open position that permits the lading to discharge. Moving from the closed position to the open position comprises moving at an angle upward and transverse to the railcar.

A door operating mechanism for operating longitudinal doors of a railroad hopper car. The mechanism includes operating members that are coupled to ends of the doors. These operating members are each actuated by a separate actuating device that is coupled to a top surface of a sill of the hopper car. Door supports have one end coupled to a door and an opposite end coupled for rotation to an actuating device. When a power cylinder coupled to the operating member is activated, the actuating devices are rotated. This rotation causes the door supports to shift in opposite directions and to open the longitudinal doors.

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.

A hopper car gate with a frame having multiple openings and one or more solid sections positioned between adjacent openings, an operating mechanism coupled to the frame, and a door supported by the frame. The door has multiple solid sections to match the number of openings in the frame and one or more openings positioned between adjacent solid sections. The door is movable by the operating mechanism between a closed position, in which the solid sections of the door block the openings in the frame, and an open position, in which the openings in the door are aligned with at least some of the openings in the frame and the solid sections of the door are aligned with at least some of the solid sections of the frame.

According to some embodiments, a compression strut comprises a first strut body comprising a threaded end and a hollow end, and a second strut body comprising a threaded end and a shaped end. The hollow end of the first strut body is slidably coupled to the shaped end of the second strut body. A spring is disposed between the first strut body and the second strut body configured to resist longitudinal compression of the compression strut. The first strut body is rotationally coupled to the second strut body so that rotation of the first strut body also rotates the second strut body and rotation of the second strut body also rotates the first strut body. A first ball end is threaded to the first strut body and a second ball end is threaded to the second strut body.

According to some embodiments, a compression strut comprises a first strut body comprising a threaded end and a hollow end, and a second strut body comprising a threaded end and a shaped end. The hollow end of the first strut body is slidably coupled to the shaped end of the second strut body. A spring is disposed between the first strut body and the second strut body configured to resist longitudinal compression of the compression strut. The first strut body is rotationally coupled to the second strut body so that rotation of the first strut body also rotates the second strut body and rotation of the second strut body also rotates the first strut body. A first ball end is threaded to the first strut body and a second ball end is threaded to the second strut body.

A mechanism for conjointly operating a plurality of gate assemblies mounted on a hopper car having an elongated car body with sides and ends, and a bottom defining a discharge area comprised of a plurality of discharge openings. Each gate assembly includes a slide door arranged in operable association with one of the discharge openings. The mechanism operates the slide door on all the gates conjointly relative to each other. Methods for controlling the gravitational discharge of material from a hopper car are also disclosed.

A railroad hopper car discharge gate assembly has first and second elements arranged in vertically stacked relationship relative to each other for controlling discharge of material from a hopper car. First and second drive mechanisms move the first and second elements, respectively, between closed and open positions. A lock assembly including first and second locks serve to maintain the first and second elements, respectively, in a closed position. The gate assembly also includes a mechanical system for positively removing the first and second locks from a locked condition relative to their respective element upon rotation of either drive mechanism. A method for controlling discharge of material through an opening defined by the railroad hopper discharge gate assembly is also provided.

A railroad hopper car discharge gate assembly has first and second elements arranged in vertically stacked relationship relative to each other for controlling discharge of material from a hopper car. First and second drive mechanisms move the first and second elements, respectively, between closed and open positions. A lock assembly including first and second locks serve to maintain the first and second elements, respectively, in a closed position. The gate assembly also includes a mechanical system for positively removing the first and second locks from a locked condition relative to their respective element upon rotation of either drive mechanism. A method for controlling discharge of material through an opening defined by the railroad hopper discharge gate assembly is also provided.