Abstract: The present invention relates to an elastic coupling (1) between rail vehicle wagons, comprising: an end support (2) or curved head (8) in turn comprising a screwed straight area (5), an intermediate deformation area (6) and an end coupling area (7), the end (8) of the coupling area (7) being curved, an end support (3) or straight head (8?) in turn comprising a screwed straight area (5?), an intermediate deformation area (6?) and an end coupling area (7?), the end (8?) of the coupling area (7?) being straight, and an enclosing case (4) covering the end coupling area (7) of the support (2) and the end coupling area (7?) of the support (3), such that the supports (2) and (3) are attached to one another by draw connection means and by elastic elements. The walls of the intermediate area 6 of the support 2 are curved inwards, and the walls of the intermediate area 6? of the support 3 are curved outwards.

Abstract: The present invention relates to an elastic coupling (1) between rail vehicle wagons, comprising: an end support (2) or curved head (8) in turn comprising a screwed straight area (5), an intermediate deformation area (6) and an end coupling area (7), the end (8) of the coupling area (7) being curved, an end support (3) or straight head (8?) in turn comprising a screwed straight area (5?), an intermediate deformation area (6?) and an end coupling area (7?), the end (8?) of the coupling area (7?) being straight, and an enclosing case (4) covering the end coupling area (7) of the support (2) and the end coupling area (7?) of the support (3), such that the supports (2) and (3) are attached to one another by draw connection means and by elastic elements. The walls of the intermediate area 6 of the support 2 are curved inwards, and the walls of the intermediate area 6? of the support 3 are curved outwards.

Abstract: Devices to shift the stops (8) of rail vehicle bodies or coaches with bogies on curves and rail vehicle body with bogies. The devices are provided in an interior cavity of the frame of the bogies whose lateral edges each have a separate stop (9, 10) and that houses a lower projecting part (4) of the body. In one embodiment, on the front edge of the interior cavity of the frame (1) of the bogie, there is a pair of joints (11) from each of which a rod (5, 6) leads backwards and each of these is joined to a separate slider (7) by means of joints. The sliders (7) are able to move on guides located on the respective lateral surfaces of the lower projecting part (4) of the body, and the sliders (7) are wedge shaped with a guide located on their surface in the form of an inclined plane. The stops (8) of the body are coupled, at their respective inside surfaces, to the guides located on the respective sliders (7); the stops (8) of the body are joined together by transversal connection means (15).

Abstract: The invention relates to devices for moving the buffers of articulated cars of railway vehicles travelling on a curve. The devices are disposed between two adjoining cars (6, 6?) articulated by a transversely centered coupling or linkage (12), said cars (6, 6?) including a front-end projecting element (9) which is joined to the coupling or linkage (12) extending from the rear end of the next car. In all embodiments of the invention, as the buffers (3) move sideways under the action of skids (2) or other means towards the center of the curve at the part of the device closest to the wheels (7) on the inner part of the curve, the sideways movement of the car into the curve is limited as the buffers (3) come into contact with the corresponding surface of the wheel set, obstructing the sideways movement of the car.

Abstract: Devices to shift the stops (8) of rail vehicle bodies or coaches with bogies on curves and rail vehicle body with bogies. The devices are provided in an interior cavity of the frame of the bogies whose lateral edges each have a separate stop (9, 10) and that houses a lower projecting part (4) of the body. In one embodiment, on the front edge of the interior cavity of the frame (1) of the bogie, there is a pair of joints (11) from each of which a rod (5, 6) leads backwards and each of these is joined to a separate slider (7) by means of joints. The sliders (7) are able to move on guides located on the respective lateral surfaces of the lower projecting part (4) of the body, and the sliders (7) are wedge shaped with a guide located on their surface in the form of an inclined plane. The stops (8) of the body are coupled, at their respective inside surfaces, to the guides located on the respective sliders (7); the stops (8) of the body are joined together by transversal connection means (15).

Abstract: A measuring device for the rolling and lathing parameters of railway wheels (1) permitting the viewing of both sides of the flange and the rolling band by means of artificial viewing methods, using two laser light sources (2), each one of which projects a line of light along the profile to be measured. A camera (4) simultaneously captures both sides of the illuminated profile (3) with the aid of a two mirror periscope system (5). The periscope design permits simultaneous viewing of both the flange and the rolling band with a single camera. A set of wheel presence sensors (10) activates image capture by the camera. Each captured image is sent to an electronic artificial viewing equipment (6), where the two profile views containing the recorded image are composed resulting in a complete profile. The obtained results are displayed in the electronic equipment itself or in a computer (7).

Abstract: Device and process for measuring ovalization, buckling, planes and rolling parameters of railway wheels by use of a rolling rail (2) along which the outermost part of the wheel (1) to be measured is made to pass at approximately 10 km/h. Various sensors (7) detect the presence of the wheel in the measuring area, such that they activate the device. A collimated laser beam system (6) projects a solid light beam on the wheel, constantly interfering therewith producing images which are reflected on a screen (4). These images are recorded by a camera (5) and sent to an artificial viewing system (9) where the necessary parameters are calculated, on the basis of which the required measurements are obtained. The results obtained are sent to a computer (10) where the measurement reports are generated.

Abstract: A train axle system with movable wheels, comprising an axle whose necks, where the wheels are positioned, are provided with a toothing formed with straight teeth having axial generators, the inner part of the wheel hubs having a similar toothing so that the rotating wheel is joined to the axle when it occupies positions corresponding to two track gauges, the axial blocking of the wheel being carried out by means of an outer locking bolt, there being attached to the end of the axle an external bearing (1) which supports the vertical load through a supporting part, the hub of the wheel (R) having a tubular extension with a central roller bearing (3) and two axial bearings (4), there being attached on the central bearing (3) a part (5) with protuberances (6) which assist in immobilising the wheel in each track gauge.

Abstract: Disseminated traction arrangement applied to single-axle train wheel sets provided with independent wheels, comprising, for each wheel (7), a traction motor (8), an extensible shaft (9) which, at one of its ends, is connected to the axle of the traction motor (8) and, at its other end, ends in a pinion (5), and a crown wheel (6) connected to the axle (15) of the wheel (7) and which engages, with the pinion (5) mounted on the shaft (9), so that by means of the pinion-crown group (5, 6) thus formed, the traction power generated by the motor (8) is transmitted to the wheel (7). The invention is applicable to wheel sets incorporated in the connection area between two adjacent train waggons.

Abstract: An installation for the automatic evaluation of the condition of the rolling band on wheels of moving trains. It comprises a rail beam (1) for each railway line (8), a guard-rail to assure wheel guidance, feelers (P1, P2, P3, P4) intended to come into contact with the wheels passing over them, feeler holders fitted on the rail beam, to ensure wheel-feeler contact, ultrasonics equipment (12) to transmit ultrasonic pulses towards the wheels and to generate the corresponding ultrasonic plots, a local processor (13) to control the ultrasonics equipment and to receive the ultrasonic plot signals generated, a computer (14) connected to the local processor to manage the ultrasonics equipment, and an antenna (15) connected to the computer to identify the compositions of train measurements. The invention is useful to detect cracks in the rolling band of railway vehicle wheels.

Abstract: A single-axle wheel set with outer suspension supports for railway vehicles with pendulum-type suspension. This wheel set consists of a flat, horizontal chassis on which the independent, movable wheels are mounted, and upright suspension supports situated at the outer part of the wheels and joined to each other at their upper part by means of a crosspiece to form a portico, in whose upper part suspension springs are provided.

Abstract: Installation for measuring the wheel offset of railway vehicles. It makes it possible to obtain three circumferential profiles of the zone of contact of the running tread of said wheels as the railway vehicles travel at low speed over the installation. Once the data have been processed by computer equipment, the offset and the shape error are detected in real time. The installation is made up of equipment, at the foot of the track, formed by a running support with its guard rail, wheel-position sensors, a system for picking up radial displacements and an electronic control system. This system transmits the data to computer equipment where the process is carried out and the statistics generated and in which the results are displayed and stored.

Abstract: A tractor bogie with an integral gauge-change system which includes two frames which support sets of running gear and have sliding and centering blocks to support the bogie and unweight the wheels as they pass through a gauge changer; a toothed extendible axle arranged between each pair of sets of running gear; and a pinion/ring-gear transmission set fitted on the bogie frame to transmit the traction moment to the extendible axle. The invention is applicable to rolling stock adapted to run on tracks having two gauges.

Abstract: A method and apparatus for measuring parameters of the wheels on a moving railway car in which the wheels travel on a steel slab and when a wheel passes a position sensor and is in a suitable position for measurement, a signal is produced which is supplied to a laser generator. The laser generator produces a planar laser beam which is directed onto the wheel. An image generated by the planar beam of light is captured by a camera in synchronization with the signal produced by the position sensor. The image is supplied to high-resolution artificial-vision electronic equipment whose output is supplied to a central control computer which processes the output and produces the desired information and displays it on a monitor. Separate laser generators can be used to produce separate beams for measuring wheel diameter and wheel profile and the separate generators are connected to separate electronic equipment in turn connected to the central control computer.

Abstract: Railway axle assembly furnished with automatic change of track gauge and adaptable to conventional freight bogies. It comprises two independent rolling element assemblies (2), each composed of a wheel, a semiaxle, an outer bearing and an inner bearing, the inner bearing carrying a locking catch with two vertical shafts connected together by a bridge which contains the pieces which facilitate its unlocking and subsequent locking. It also includes an axle frame (1) on which are mounted the rolling elements (2) and their locking systems, a device (3) for connecting between the rolling elements, two trusses (4) for translating the brake shoes, a system of electrical continuity between wheels and a device (6) for detecting hot inner bearings. The invention is useful for converting current bogies with fixed axles into bogies with transversely displaceable axles.

Abstract: A pendular suspension system for vehicles running on railroad tracks, which comprises resilient means for tilting the vehicles in response to unbalanced centrifugal force, located symmetrically on either side of a central vertical longitudinal plane of the vehicles and being independent of one another. Resilient means are arranged to bear upon a base located above the center of gravity of the vehicle bodies and are able to yield vertically and horizontally in response to the resultant imbalance of the centrifugal force to induce increased tilt of the vehicle bodies in addition to the normal cant when the vehicles travel around a curve and become operative only when the train reaches a speed above a predetermined minimum and only when the track has a predetermined degree of curvature to thereby reduce the passenger feeling of unbalanced centrifugal force.