Abstract: A car truck including a first side frame, a second side frame, and an underslung steering assembly connected to the first side frame and the second side frame, configured to reduce, inhibit, minimize, and/or prevent truck hunting and warping.

Abstract: A vehicle suspension assembly includes a mounting bracket adapted to couple to a vehicle frame assembly, a trailing arm having a first end pivotably coupled to the first mounting bracket, and a second end, an axle member coupled to the second end of the trailing arm, the axle member configured to support a tire, an actuator operably coupled to the trailing arm and operable between a first state configured to lift the tire away from a ground surface and a second state configured for the tire to contact the ground surface, and an actuator arrangement configured to move from a first position where the actuator arrangement couples the actuator to the trailing arm when the actuator is in the first state, and a second position where the actuator arrangement uncouples the actuator from the trailing arm when the actuator is in the second state.

Abstract: A rail vehicle including a wheel assembly having wheels configured to traverse rails of a railroad track, a controller having a processor in communication with the wheel assembly, and a non-transitory computer readable medium, disposed on the vehicle, and containing instructions, which, cause the following steps in real-time as the vehicle traverses the rails: determine a rail pressure of the wheels on the rails, determine a degree of curvature of the rails as the vehicle moves along the railroad track, determine a minimum rail pressure of the wheels on the rails based on the degree of curvature, determine if the rail pressure is equal to or greater than the minimum rail pressure and adjust the rail pressure of the wheels on the rails to be the minimum rail pressure when the rail pressure is less than the minimum rail pressure to maintain stability of the vehicle on the railroad track.

Abstract: This table circulation guide device includes sliders and carriage attached to a table. In a working area, the table is guided by the sliders straddling straight track rails. In a non-working area, the table is guided by the carriages traveling on a curved track rail. An endless circulation circuit is formed by the straight track rails and the curved track rail. In the working area of the circuit, the table travels via the sliders straddling the straight track rails. In the non-working area of the circuit, the table travels via the carriages located between the sliders.

Abstract: To prevent separation of a truck frame and a wheel axle and to continue supporting a vehicle, even if damage has occurred to a steering device of a steering truck in which front-back support of a steering axle is performed only by a steering mechanism. A railway vehicle steering truck provided with an axle box suspension of a steering axle, which is designed to perform support in the front-back direction of an axle box which rotatably supports the steering axle, by means of a steering device having a steering link which is rotatably connected to the axle box, and a connecting link rotatably connected to a bolster, each of these being rotatably connected to a steering lever which is rotatably connected to the a truck frame.

Abstract: The following disclosure relates to a rail car. In one embodiment, a railcar can comprise a span bolster, outer truck assemblies, and a middle truck assembly. The outer truck assemblies can be rotatably mounted to each end of the span bolster. The middle truck assembly can be slidably mounted at a middle portion of said span bolster. In another embodiment, a railcar system can comprise a pair of railcars and a body. The rail cars can comprise a span bolster, outer truck assemblies, and a middle truck assembly. The outer truck assemblies can be rotatably mounted to each end of the span bolster. The middle truck assembly can be slidably mounted at a middle portion of said span bolster. The body can have two ends, each of the ends connected to one of the span bolsters.

Abstract: The present invention relates to a flexible direct-drive bogie and implements a flexible frame by using a flexible cross beam, so as to make it easy for left and right side-frames to nod relatively to adapt to a larger twist of a track. As the frame is flexible, a primary suspension of the present invention is simplified to a thin layer of rubber pad, so that the production cost is reduced. Flexible drive devices enable flexible suspension of a permanent magnetic motor, and at the same time, can transmit torque, improve transmission efficiency, and reduce a weight of a transmission mechanism.

Abstract: A rail vehicle with variable axial geometry includes at least two axles, wherein a horizontal angular position of each axle with respect to the vehicle frame may be changed, and wherein the angular position of each axle is adjusted continuously during operation of the rail vehicle in such a way that a predefined lateral displacement and a predefined axial angle are achieved.

Abstract: To prevent separation of a truck frame and a wheel axle and to continue supporting a vehicle, even if damage has occurred to a steering device of a steering truck in which front-back support of a steering axle is performed only by a steering mechanism. A railway vehicle steering truck 11 provided with an axle box suspension of a steering axle 2, which is designed to perform support in the front-back direction of an axle box 4 which rotatably supports the steering axle 2, by means of a steering device 3 having a steering link 2a which is rotatably connected to the axle box 4, and a connecting link 3c rotatably connected to a bolster 7, each of these being rotatably connected to a steering lever 3b which is rotatably connected to the a truck frame 6.

Abstract: A track-guided vehicle wheel truck facilitates vehicle maintenance and enables reduction in costs. The track vehicle wheel truck includes guide frames arranged along the forward and rearward directions of the vehicle on the inside of the vehicle width direction in the running wheels, and fixed to knuckles; a tie rod arranged on the center side of the forward and rearward directions in the vehicle along the vehicle width direction, and interlock with the guide frames; guide wheel receivers disposed toward the inside of the vehicle width direction from the guide frames on the vehicle end side and the center side relative to an axis of the running wheels; and a steering axle arranged along the vehicle width direction, and are able to turn the running wheels, the knuckles, and the guide frames by installing a kingpin at both ends thereof.

Abstract: A railway truck is provided comprising first and second wheelsets, each wheelset comprising at least a left and a right wheel adjacent opposite ends of an axle. Each axle is supported for rotation about an axle axis by a respective bearing adjacent the left and right wheels. A first frame member extends between a bearing support adjacent the left wheel of the first wheelset and a bearing support adjacent the right wheel of the second wheelset. A second frame member extends between a bearing support adjacent the left wheel of the second wheelset and a bearing support adjacent the right wheel of the first wheelset. The first and second frame members are free to move without interference from each other to cause the truck to steer in response to a change in a rolling direction of either of the first and second wheelsets.

Abstract: A rail road freight car truck has a truck bolster mounted transversely between a pair of side frames. The mounting interface between the wheelset axle ends and the sideframe pedestals allows self-restorative longitudinal rocking self-steering motion proportionately resisted as a function of displacement and of the vertical force carried at the interface. The center of rotation of the rocking motion is lower than the center of rotation of the axle. The interface may also permit lateral rocking swing motion of the sideframes. Auxiliary centering elements may be mounted in the pedestal seats. The auxiliary centering elements may be elastomeric. The truck may also have low stick-slip friction dampers, and may be provided with brake linings, or similar features. The friction dampers may be mounted in a four-cornered arrangement at each end of the truck bolster.

Abstract: Lateral pressure which develops in the front wheelset when traveling along a curved track is decreased while suppressing an increase in costs as much as possible. A two-axle truck for a railway car has a front wheelset having wheels with a first tread gradient and a rear wheelset having wheels with a second tread gradient which is different from the first tread gradient. The tread gradient of the wheels of the rear wheelset is larger than the tread gradient of the wheels of the front wheelset.

Abstract: A railway vehicle including a plurality of bogies is provided. Each bogie includes a chassis, two front wheels and two rear wheels. For each front wheel and each rear wheel, a guidance device is provided for guiding the wheel in rotation and a primary suspension device of the chassis is provided on the guidance device. At least the primary suspension devices associated with the front and rear wheels are arranged on the same first lateral side of the bogie. The primary suspension devices each include two longitudinal connecting rods, each connected by a first connection point to the chassis and by a second connection point to the corresponding guidance device and at least one resilient component inserted between the two connecting rods to define at least the vertical stiffness of the primary suspension device, the two connecting rods being offset longitudinally relative to one another. Each of the bogies also includes a pivot connection device for connecting the bogie to the railway vehicle.

Abstract: A rail vehicle with variable axial geometry includes at least two axles, wherein a horizontal angular position of each axle with respect to the vehicle frame may be changed, and wherein the angular position of each axle is adjusted continuously during operation of the rail vehicle in such a way that a predefined lateral displacement and a predefined axial angle are achieved.

Abstract: A railway truck is provided comprising first and second wheelsets, each wheelset comprising at least a left and a right wheel adjacent opposite ends of an axle. Each axle is supported for rotation about an axle axis by a respective bearing adjacent the left and right wheels. A first frame member extends between a bearing support adjacent the left wheel of the first wheelset and a bearing support adjacent the right wheel of the second wheelset. A second frame member extends between a bearing support adjacent the left wheel of the second wheelset and a bearing support adjacent the right wheel of the first wheelset. The first and second frame members are free to move without interference from each other to cause the truck to steer in response to a change in a rolling direction of either of the first and second wheelsets.

Abstract: Lateral pressure which develops in the front wheelset when traveling along a curved track is decreased while suppressing an increase in costs as much as possible. A two-axle truck for a railway car has a front wheelset having wheels with a first tread gradient and a rear wheelset having wheels with a second tread gradient which is different from the first tread gradient. The tread gradient of the wheels of the rear wheelset is larger than the tread gradient of the wheels of the front wheelset.

Abstract: The invention is directed to a crane which comprises a traveling gear which comprises a plurality of traveling gear groups for moving along rails, each traveling gear group having at least two wheels which are rotatably mounted at a subframe so as to be spaced apart in longitudinal direction of the respective rail and are connected to an end carriage by a central joint having at least degrees of freedom for rotating the traveling gear group relative to the end carriage around a vertical axis and for swiveling the traveling gear group relative to the end carriage around a horizontal axis extending at right angles to the rails.

Abstract: A truck apparatus for a railway car includes a pair of wheel sets each having a pair of wheels joined by an axle. A frame is provided for carrying one end of a railway car body and a system positions the frame in a pendulum fashion from each axle end in order to independently decouple, from each other, vertical, lateral and longitudinal forces applied to the frame by the wheel sets during operation of the railway car.

Abstract: The invention relates to a device for the radial control of a rail vehicle. According to the invention, at least one wheel set (1) is mounted in a bogie or chassis and the ends of said wheel set(s) can be adjusted in the longitudinal direction of the vehicle, using actuating devices (12, 19, 21, 26). The ends of the wheel set are adjusted in a longitudinal direction by a foldable wheel-set driving rod (8/9, 15/16), the actuating device engaging with the joint (11, 18) of said foldable wheel-set driving rod.

Abstract: A vehicle where respective inwardly inclined wheels (15) of a steerable wheelset run on respective inwardly sloping faces (54) of a guideway having centreline (39). The vehicle having sensing means for sensing lateral didsplacement of the wheelset relative to a longitudinal reference path. The sensing means signalling a control system including actuating means to steer the wheelset in response to sensed lateral displacement thereof.

Abstract: A steering mechanism for a track-mounted robot is provided. The steering mechanism comprises guide wheels, which are fixed to yokes that pivot around secondary drive wheels. The pivot action of the yokes allows the guide wheels to maintain full contact with the track and steer as the robot traverses straight and curved portions of the track. Linkage components attach the yokes to a cam follower which follows a cam surface in the track in order to force the proper angle of steering for the guide wheels.

Abstract: An arrangement for self-steering, radial bogie, truck or vehicle frame for locomotives and other railroad vehicles, which mount unitized brakes to steering beams located either ahead and/or behind their respective leading and trailing wheelsets.

Abstract: A traveling cleaner (12) for a textile manufacturing plant, the carriage of which has a carrying structure (18) supported on three running wheels (1, 2, 3). The running wheels (1, 2, 3) are suspended on wheel suspension units (20) and are arranged in a triangle in relation to one another, in such a way that the first running wheel (1) runs on a first rail (14) and the second running wheel (2) and the third running wheel (3) run one behind the other on a second rail (16). The rails (14, 16) form a runway (10) for the traveling cleaner (12) and are arranged next to one another above textile machines of the textile manufacturing plant.

Abstract: An improved railroad car wheel truck assembly comprises four arcuate weight bearing surfaces, one above each axle bearing, providing a direct load path such that a light weight frame can be used, each weight bearing surface being received within a matching arcuate channel mounted on the underside of the rail car body, the channels having a greater arc length that the corresponding weight bearing surface such that the wheel truck is allowed to rotate relative to the rail car body, about a central pivot pin, the wheel truck assembly further comprising a two part spring assemblies for each wheel with long springs that are always under compression and shorter springs that are compressed only when the car is under a load, each wheel spring assembly having one long spring that urges a wedge between the wheel truck frame and wheel set axle holding saddle to urge the wheel set and axle into alignment.

Abstract: The bogie contains a bogie frame supported on two wheel sets with a coupling device via which the two wheel sets are coupled to one another so as to be steerable in opposite senses. The coupling device contains an additional adjustment device for the transmission of adjustment forces by which a steering movement in the same sense can be transmitted to each of the wheel sets independent of and superimposed on their oppositely directed settings. In this way an influence can be exerted on the shear movement between the wheel sets independently of the bending stiffness between the wheel sets and thus an ideal reaction of the bogie to the respectively arising free lateral acceleration can be achieved.

Abstract: A rail car truck side frame for use in a frame brace truck which has stabilizing cross braces extending between the side frames. The side frame has a top compression member and a bottom tension member which are joined by upwardly and outwardly slanted end walls. Each side frame has a pedestal horn spaced from each end wall. There is a bracket assembly at the lower end of each wall for use in mounting a cross brace. Each bracket assembly includes a three-walled channel mounting bracket, with one wall having an opening therein for the mounting of the cross brace. There is a base plate welded to an outboard side of the side frame and having a first portion welded to an upper edge of the channel mounting bracket for providing support therefor. A second portion of the base plate is welded to the side frame pedestal horn. There is a support plate welded to an inboard side of the side frame adjacent its unit guide pocket and welded to the base plate for providing support therefor.

Abstract: A two-state directional control linkage (11) for controlling a steering axle, comprising a device for activating and deactivating the linkage (11) to lock the linkage in the operative position of the device and unlock it in the inoperative position thereof such that said device no longer transmits control movements. The linkage is particularly useful in public transport road vehicles.

Abstract: To provide a vehicle combination consisting of at least two railborne vehicles with single-wheelset chassis with a coupling for the single-wheelset chassis, which guarantees the most accurate alignment possible of the single-wheelset chassis in the direction of the center of the track under all travel conditions, a serf-steering device (self-steering elasticity e), which permits self-steering of the single-wheelset chassis in combination with the steering mechanism, is connected to an essentially rigid steering device.

Abstract: The invention relates to a self-steering single-axle bogie for trackbound vehicles comprising one single wheel set (8) and wherein each wheel (8a, 8b) is rigidly connected to an intermediate wheel axle (14), wherein the wheel set (8) is attached rigidly or by means of springs (10) to a bogie frame (2), which is rotatably arranged around a vertical axis. Further, the bogie is joined to the car body (4) of the vehicle via at least one toggle link (16) extending in the longitudinal direction of the vehicle and preventing the bogie from tilting, or nodding, in the vertical longitudinal plane through the vehicle. The wheels (8a, 8b) exhibit conical or saddle-shaped treads (18), with an elevated conicity at least in the tread (18) nearest the wheel flange, the wheel set (8) being guided into approximate radial alignment in the track through the combined effect of the conicity of the wheels (8a, 8b) in the tread (18) and the frictional forces which act between wheels (8a, 8b) and rails (20a, 20b).

Abstract: A railroad car truck includes a pair of side frames and a bolster which is supported by springs on the side frame. There are diagonal cross braces attached to the side frames with each cross brace being attached to one side frame on one side of the bolster and being attached to the other side frame on the opposite side of the bolster. There are mounting brackets fixed to the side frame and there is an end block attached with elastomeric mounting elements to each mounting bracket. The end blocks mount the cross braces. Each end block has a profile such as not to materially interfere with the scan area of a hot box detector mounted adjacent one of the railroad track rails.

Abstract: In the truck (1) the static and dynamic forces are absorbed by the frame (5). In designing the body unit fitted on the frame (5), therefore, only the unit's own weight and the passenger load are significant, thus facilitating the use of extremely lightly-built vehicle bodies. The truck (1) has single-wheel drive units (2), a longitudinal driver (3) interconnecting them, on each long side of a drive (4), the frames (5) bearing the end unit (9) and a drive control (6) for turning the single-wheel drive units (2) horizontally in response to curves. A wheelless central unit (10) is supported on each short side of the truck (1) via a link (8). A push-pull device (7) engages with the short side opposite the link (8). There are no steps, pedestals or shoulders inside the vehicle which is thus freely accessible. In the region of the truck there are recesses in the form of wheel-boxes (9.1) in which certain parts of the truck (1 ) are arranged.

Abstract: The instant invention relates to a travelling mechanism of automatic service carriages for spinning or twisting machines. The invention includes a travelling mechanism having a supporting wheel mounted in a pivot bearing, the guiding axis of the pivot bearing coinciding with the central vertical axis of the supporting wheel. The pivot bearing is connected via a connecting link to a swivel bearing installed on the travelling gear. The connecting link is arrested on either side by a fixed stop and a swivelling latch.

Abstract: A truck is braced by diagonal struts that are clamped to one another at their intersection. The clamp includes a pair of plates each having a channel to receive one of the struts. An elastomeric member is located between the struts and the plates to permit some flexibility in a vertical direction.

Abstract: A rail-mounted, high-lift stacking device (1) comprises a travelling mechanism (13) with at least two travelling mechanism bodies (6) of which each is provided with at least one travelling roller (7). Furthermore, the shelf-stacking device (1) has an upper guide mechanism (3) with a front and a rear guide arrangement, wherein between the travelling mechanism (13) and the guide mechanism (3) at least one lift mast (2) is placed on which a lift carriage (14) is supported so as to be vertically drivable. The travelling mechanism (13) and the guide mechanism (3) are provided with at least one articulation (20) permitting bending in a horizontal plane.

Abstract: Method and apparatus for reduced radius turning for large cranes mounted on curved sections of rails or track which is effected by lifting the outboard sets of wheels of the crane supporting bogies which are located at the corners of the cranes disposed over the rails having the shortest radius of curvature on the inside of the turn and then lowering the bogies when the crane is on a straight section of track.

Abstract: An independent wheel bogie for a railway vehicle comprising a central support structure, four independent arms carrying respective axles of the wheels and articulated to the support structure by resilient bushes, a suspension device for suspending a vehicle body, a center casting fixed to the support structure with the possibility of relative rotation about its vertical axis and adapted to be rigidly fixed to the vehicle body, and a steering control device for the axles comprising a pair of screw and nut linear actuators disposed longitudinally along the sides of the support structure and connected at their ends to the articulated arms on the corresponding side of the structure, and lever mechanisms for actuation of the linear actuators, activatable by a relative rotation between the bogie and the vehicle body.

Abstract: A gondola-type railway car has an end structure supported on a frameless radial truck. The end structure includes a center sill and a bottom closure member. Side sill members are connected to the sides of the bottom closure member. The undersurface of the bottom closure member has eight wedge pockets thereon with reinforcement attached thereto for engaging eight support pads on the truck. The pads and the wedge pockets are arranged in four longitudinally-spaced pairs of laterally spaced pads. The bottom closure member has a reinforcement structure on its upper surface for transferring the weight of the car to the truck. The reinforcement structure includes three transverse reinforcement channels above the three inner pairs of wedge pockets. A pair of longitudinally extending channel members extend from above the outer wedge pockets to engage the outermost transverse beam to tie the outer wedge pockets into the car body structure.

Abstract: A railway wagon suspension system which includes an axle assembly comprised of two wheelsets supporting springs for the wagon and interconnected by linkages at each of their ends via a respective bellcrank both of which bellcranks are pivoted to the wagon, confronting arms of the two bellcranks being pivotally interconnected by a link, and the linkages from each end of the two wheelsets being pivotally connected to the other arm of a respective one of the bellcranks with the linkages from one wheelset being closer to the end of that arm than the linkages from the other wheelset.

Abstract: An axle for a rail vehicle is pivotally connected to two equal length swinging arms, each of which is pivotally connected to the rail vehicle. The axle rotates about a virtual vertical axis away from the axle and nearer to the center of the rail vehicle. The axle is then radial for all curves over which a rail vehicle would usually traverse. In addition, the overhang of the rail vehicle while traversing a curve is reduced since the rail vehicle chords between virtual axes.

Abstract: An electrical linear motor stator is fixedly disposed along a roadway. A car supported on at least two trucks is guided for movement along the roadway. The trucks are pivotally mounted to the car for rotation about a vertical axis. Permanent magnets for interacting with the stator have one end pivotally mounted to the vertical axis of the truck and an opposite end guided, for example, using rollers, for positive movement parallel to a vertical longitudinal central plane of the stator. In this way, the permanent magnet is mounted for transverse movement to the car to permit the car to negotiate small radius curves in the roadway while still maintaining good alignment between the permanent magnet and the stator.

Abstract: In a truck for a railway vehicle having a plurality of wheels-and-axles, an arrangement is provided for permitting each wheel-and-axle an optimal steering operation when the truck runs on a curved track, and to simplify the construction of journal box locator. Each journal box is located and fitted to a truck frame by the journal box locator for locating and fitting the journal box to the truck frame in such a fashion that the orbit of movement of the journal box expands upward with respect to the center axis of the truck, and permits the relative displacement between the journal box and the truck frame by elastic deformation of elastic members.

Abstract: Spring suspensions for the sprung mass of railway cars are disclosed and which provide torque arm support of both empty and loaded cars and control of axle movement, as in curving by hinging the outer ends of radial torque arms in support of the sprung mass above the vertical axes of the axles of the railway car trucks in which the inner ends of the torque arms are integral with hubs of torque reactive, loaded car spring elements mounted on the journal boxes and in which the hubs are concentric with the axles. In a construction where the loaded car spring elements are mounted on a cross bolster between a pair of axles at the ends of high productivity cars, axes of the spring elements are positioned above the axes of the axles and the outer ends of the torque arms are connected to the journal boxes. In either construction, empty car spring elements are disclosed which are interposed between the sprung mass and the car axles and which are hinged to the ends of torque arms of the loaded car spring elements.

Abstract: A truck comprising a pair of longitudinal side frames with axle assemblies located at opposite ends thereof. Diagonal braces extend between the side frames to provide the truck with a lateral stiffness and a yaw stiffness. The diagonal braces include struts extending between the side frames and connected thereto by elastomeric members. The elastomeric members provide controlled flexibility in shear for the truck and are chosen so that the yaw stiffness and lateral stiffness lie on the characteristic curve of maximum critical velocity. In this way maximum stability of the truck is obtained.

Abstract: In a powered truck or bogie for a railway vehicle having steerable wheelsets which pivot with respect to the truck or bogie frame, the motor for each wheelset is mounted to the truck or bogie frame and coupled to the drive transmitting means by a flexible coupling having a substantially vertical pivotal axis which axis is coincident with the real or virtual pivotal axis of the wheelset with respect to the truck or bogie.

Abstract: A railroad truck includes a pair of side frames with wheeled axles mounted there between. A roller bearing adaptor is mounted upon a roller bearing at each end of each axle with the side frames being mounted upon a shear pad mounted on the roller bearing adaptors. There is a subframe for interconnecting the wheeled axles by connecting opposite corner adaptors and there is a rigid connection between each adaptor and the subframe. Each rigid connection includes an adaptor portion and a subframe portion, with said portions being relatively vertically disposed. There are vertical fastening means connecting said vertically disposed adaptor and subframe portions. The vertically disposed portions have cooperating means thereon which substantially eliminate horizontal shear forces upon the fastening means.

Abstract: A railway truck having a suspension wherein pivotal suspension links are connected between the pedestal openings of a truck side frame and the bearing adaptor of the bearing received within the respective pedestal opening to suspend the side frame with respect to the bearing adaptor so as to permit limited relative lateral and longitudinal motion of the axle and wheel set with respect to the side frame.

Abstract: A single axle railroad wheel truck is disclosed having two wheels joined by a single axle. A frame supported on the wheels and axle defines four spaced apart hanger flanges. A pair of cross members parallel to the axle for supporting a railroad car body are supported on pairs of hanger members directly connected between a pair of said hanger flanges and each one of the cross members. Springs are disposed upon the cross members for supporting a car body thereon.

Abstract: A coupling assembly is provided to control the movement between two structural bodies when different forces are applied thereto. Initially, a restraint and limited movement is permitted by an elastomeric member for relatively low differential forces. With high differential forces, the restraint is overcome and the structural bodies move with respect to each other on a low friction member.

Abstract: A railroad vehicle truck having a single wheelset includes a pair of spaced side frames. The side frames are joined into a rigid unit by a pair of transversely positioned crossbars. The crossbars are positioned one each on each side of the wheelset which has its axle ends journaled in bearings carried in turn in a pedestal jaw centrally formed in each side frame. Projecting inwardly from each end of the side frames is a bracket which forms part of a set of upper pivot connections with an upper end of a swing arm. A laterally positioned crosstie assembly is joined through a pair of spaced end caps with a lower end of each swing arm to form a set of lower pivot connections. Each crosstie assembly end cap has a pair of spring cups containing a set of springs which operatively support a body of the railroad vehicle thereabove.