Abstract: A threaded interface buffer with anti-rotation structure is provided, comprising a buffer housing (1), a buffer capsule (2) and a drawbar (3), wherein the drawbar (3) comprises a connection portion (4) connected to the buffer capsule (2); the drawbar (3) is in threaded connection to the buffer capsule (2) through the connection portion (4); and, a first level anti-rotation structure (5) for limiting the rotation of the drawbar (3) and the buffer capsule (2) is mounted thereon, and a second level anti-rotation structure (6) for limiting the rotation of the drawbar (3) and the buffer housing (1) is mounted therebetween, so that the versatility and adaptability of the buffer can be enhanced and the operational stability of the buffer is ensured.

Abstract: An end-of-car system for railcars is provided comprising an asymmetric draft gear mechanism offering shock absorption to a railcar when the latter is subjected to buff or draft forces. The end-of-car system may be retrofitted to railcars having a different type of shock absorption system.

Abstract: A carriage body for a railroad vehicle, said carriage body having the following: a base, two lateral walls, each of which is connected to the base, at least two longitudinal supports, each of which lies in the transitional region of the base to the lateral wall on opposing sides of the carriage body and which extend in the longitudinal direction of the carriage body, and a coupling fixing device for fixing a coupling via which the carriage body can be connected to a carriage body of another carriage. The fixing device is arranged below the base, and a lower face of the fixing device is connected directly to the longitudinal supports via a connection.

Abstract: A rail car has a sliding sill located within a fixed frame and a shock absorber for absorbing shock. The shock absorber has a housing with inner and outer chambers containing oil and gas. A piston extends from the housing. The housing has an end plate on its end which engages a frame stop. The housing has a base end which engages another frame stop. Limiting stops formed on the housing limit the amount of buff movement allowed.

Abstract: A shock absorber for use with a sliding center sill rail car utilizes an internal gas type spring. The shock absorber has a housing and a cylinder located in the housing that moves with the center sill. An annular outer chamber surrounds the cylinder within the housing. Two pistons are slidably carried in the cylinder for independent movement relative to each other. Each has a shaft that extends in opposite directions. The shafts engage stationary stops mounted stationarily to the frame of the rail car. Ports are located in the side wall of the cylinder for the outflow and inflow of a gas and liquid fluid combination. The ports are symmetrical measured either from the rearward end or the forward end.

Abstract: This invention concerns an end-of-car hydraulic cushioning device for use on rail cars and a method of repairing such devices. The cushioning device has a piston and shaft assembly which is subject to train action forces. The piston and shaft are connected by means of a threaded engagement which prevents relative axial movements between the two parts. Rotational movement of the piston on the shaft is prevented by a hardened steel pin disposed in aligned, radial holes formed in the piston and shaft. The pin and holes are sized to provide clearance between the piston and pin. This permits piston metal deformation to occur during high speed impacts without catastrophically stressing the steel pin. A filler rod retains the pin in the radial holes.

Abstract: A cushioning apparatus for a railway car includes a housing having a cylinder bore disposed therein with an end plate closing one end of the cylinder bore. A piston assembly includes a shaft extending through the end plate and a piston disposed on the shaft and slidably received within the cylinder bore. The piston is slidable between an axially innermost position furthest from the end plate and an axially outermost position closest to the end plate. A limit pin has an interference fit within a pin bore of the end plate and extends outward therefrom toward the piston for initially limiting axially outward movement of the piston short of its axially outermost position to thereby limit a length of the cushioning apparatus prior to installation of the cushioning apparatus in a railway car.

Abstract: A rigid draft and buffing sliding sill includes cushion elements operably attached thereto for absorbing shocks generated during buff or draft operating conditions. The draft and buffing sliding sill extends lengthwise of the underframe of a railway car. At least one of the cushion elements remains inactive until the shock forces acting on the underframe exceed a predetermined magnitude.

Abstract: Stabilizing apparatus for preventing derailment of moving railway cars is provided. The apparatus includes a plurality of interconnected elongated members that overlie and are secured to a string of coupled cars. In the preferred embodiment, the elongated members are automatically connected at their ends by interengageable coupling members. The elongated members include cables that act as vibration dampers to prevent swaying and rolling motion of the cars on uneven track. The coupling members are specially configured to prevent a chain-reaction derailment of all the cars if one car derails.

Abstract: A lock-out apparatus for shock absorbing draft gear on a railway car which draft gear has a housing adapted to be fixed to one end of the railway car, a shock absorber is provided in the housing to cushion shock on the coupler of a railway car at the one end. The shock absorber includes at least one movable shock absorbing member operatively connected to the coupler and a cushion cooperating with the movable member to cushion shock. The lock-out apparatus has a locking member slidably mounted in the housing for movement between a locking and an unlocking position. There is a fluid motor for moving the locking member, and a conduit connecting the fluid motor to a brake line on the railway car whereby a change in the pressure of the fluid in the brake line will operate the fluid motor to move the locking member to a locking position to prevent movement of the movable shock absorbing member and to thus lock out the draw gear.

Abstract: A cushion assembly having an outer cylinder and a metering cylinder extending between end caps and defining an annular reservoir therebetween with communication being provided by metering orifices distributed along the length of the metering cylinder. A piston is slideable in the metering cylinder having a first piston rod connected to one side and a second piston rod of hollow construction connected to the other side, the first piston rod having a head at its outer end. The head and the first end cap define a gap between them when the first piston rod is in its contracted state. Stop members on the slideable sill and frame of the car occupy normal side by side positions in register with one another in the gap, so that a shock applied to the sill in either direction causes the stop members to shift out of register with one another elongating the gap so as to tension and extend the first piston rod.

Abstract: A coupler arrangement for rapid transit passenger cars includes a self-centering coupler shank having limited horizontal and vertical swinging movement about a spherical bearing structure. The arrangement includes first and second shock absorbing mechanisms sequentially effective. A pin type coupler includes a locking arrangement on the coupler structure engageable with the coupler pin.

Abstract: A fabricated backstop/buffstop comprising a pair of parallel, juxtaposed side plates, each side plate having a central opening therein, a forward transverse member having each end thereof freely positioned in a portion of the central opening of each side plate of the pair of side plates and having a slot located in the center of the forward transverse member, and a rear transverse member having each end thereof freely positioned in a portion of the central opening of each side plate of the pair of side plates.

Abstract: This disclosure deals with a hydraulic cushioning unit for a railway car, including a gas return. The unit includes a main reservoir which is precharged with a hydraulic oil and an inert gas. At least one reservoir extension is also provided at the upper side of the unit, the extension enabling the unit to be charged with relatively large amounts of oil and gas. The oil volume when the unit is in its neutral position is approximately 76 percent of the total reservoir volume, and the reduction in the gas volume during impact conditions is not more than approximately 40 percent. The unit includes a tube and two separate charging passages for precharging the unit to the desired oil and gas volumes.

Abstract: The invention relates to railway cars having a tubular-like sill in the underframe and a standard Z type draft sill at each end and a transition sill telescoping into and connecting the draft sill to the tubular sill.