Abstract: In a method for renewing sleepers of a track formed of rails and the sleepers, the placement of skids, which support a machine frame of a track-building machine on the sleepers, is preceded by the machine frame being intermediately supported on the sleepers. The two rails are then distanced from one another, while avoiding a breakage separation, in a track section that includes both the region of the skids and the intermediate support. After supporting the machine frame on the skids, the intermediate support is lifted off the sleepers and work is begun.

Abstract: Each transport vehicle is configured to perform a vehicle following control if an inter-vehicle distance to the transport vehicle traveling ahead becomes less than or equal to a predetermined distance, the vehicle following control being a control in which traveling state of the own transport vehicle is controlled in order to maintain constant the inter-vehicle distance to the transport vehicle traveling ahead based on traveling state information of the transport vehicle traveling ahead. Each transport vehicle is configured to terminate the vehicle following control if preparation of the own transport vehicle for arrival at a destination is initiated while the vehicle following control is being performed or if a travel direction of the own transport vehicle at a branching location is determined to be different from a travel direction of the transport vehicle traveling ahead at the branching location while the vehicle following control is being performed.

Abstract: The invention relates to a rail vehicle (1) having a machine frame (2) supported on on-track undercarriages (4), on both sides of which are arranged—in the longitudinal direction (3) of the rail vehicle—crane rails (8) for a mobile gantry crane (11). In this, for lifting or lowering of the gantry crane (11), a crane rail section (12) of the respective crane rail (8) is arranged to be vertically adjustable by a drive (18). In this manner, contrary to the prior art, a higher gantry crane (11) can be used without violating a given clearance profile during transfer travel.

Abstract: A fusion machine which can be top-loaded on very large polyolefin pipes and pipelines has jaws which consist of an upper half jaw and lower left and right complemental jaws which pivot on the half jaw. Left and right actuators connected between the complemental jaws and the half jaw operate in one direction to cause the complemental jaws to rotate to an opened condition in which the upper half jaw can be lowered onto and lifted from the pipes to be fused and in the other direction to cause the complemental jaws to rotate to a closed condition in which the pipes to be fused are gripped so substantially around their circumferences as to resist their deformation from round during manipulation by the machine. The top-loading machine minimizes the need for heavy equipment to load and unload pipe to and from the fusion machine.

Abstract: The present disclosure describes methods, systems, and computer program products for serializing data for data transfer. One computer-implemented method includes analyzing a column of data stored in the first database to determine at least one serialization parameter, the at least one serialization parameter comprises a repetition counter, a replication counter, or a variable type; determining a data serialization scheme associated with the data based on at least one of the repetition count or the replication counter; determining a variable serialization scheme associated with the data based on the variable type; repeating the analyzing, the determining of the data serialization scheme, and the determining of the variable serialization scheme; serializing the data stored in the first database using the data serialization scheme associated with the data and the variable serialization scheme associated with the data; and transferring the serialized data to the second database.

Abstract: A system includes a plurality of ride vehicle modules, where each of the plurality of ride vehicle modules includes an interlock system configured to perform linking operations to join to other ride vehicle modules to form a cluster and delinking operations to separate from the other ride vehicle modules throughout a ride, control circuitry configured to control the interlock system and movement of the respective ride vehicle module independently or as a part of the cluster, and communication circuitry configured to wirelessly communicate with the other ride vehicle modules internal and/or external to the cluster. The cluster may change sizes throughout the ride by performing linking and delinking operations as desired. A method for changing the size of clusters of ride vehicle modules throughout a ride is also disclosed.

Abstract: A computer-implemented method for determining a query execution plan based on transaction state may include determining that a first set of database values in a database table are in a committed transaction state and that a second set of database values in the database table are in an uncommitted transaction state. In response to the determining, the first set of database values may have a first set of statistics generated and the second set of database values may have a second set of statistics generated. The first and second set of statistics may be for use in determining a query execution plan.

Abstract: A ballastless track system comprises a base; a track slab arranged above the base; a poured-field layer arranged between the base and the track slab, the poured-field layer being formed by filling self-compacting concrete, emulsified asphalt cement mortar or resin mortar, and the inside of the poured-field layer being of a steel bar structure; a connecting piece, the first end of the connecting piece extending into the track slab, and the second end of the connecting piece extending into the poured-field layer; and two rows of rail-seat arranged on the track slab in parallel; and rails arranged on the rail-seat. The ballastless track system is high in reliability, good in durability, and easy in construction and maintenance.

Abstract: The present disclosure describes methods, systems, and computer program products for serializing data for data transfer. One computer-implemented method includes analyzing a column of data stored in the first database to determine at least one serialization parameter, the at least one serialization parameter comprises a repetition counter, a replication counter, or a variable type; determining a data serialization scheme associated with the data based on at least one of the repetition count or the replication counter; determining a variable serialization scheme associated with the data based on the variable type; repeating the analyzing, the determining of the data serialization scheme, and the determining of the variable serialization scheme; serializing the data stored in the first database using the data serialization scheme associated with the data and the variable serialization scheme associated with the data; and transferring the serialized data to the second database.

Abstract: Provided in the disclosure is a pre-stressed concrete track slab of slab-type ballast-less track, which includes a slab body (1), on which fastening embedded casings (4) are arranged. At least one row of longitudinal common steel bars (11) and at least one row of transverse common steel bars (12) are arranged in the slab body (1) along a length direction and a width direction. The longitudinal common steel bars (11) are insulated from the transverse common steel bars (12). At least one row of longitudinal pre-stressed steel bars (7) and at least one row of transverse pre-stressed steel bars (6) are fastened in the slab body (1) along the length direction and the width direction through anchor backing plates and fastener devices (8). In the pre-stress directions of the longitudinal pre-stressed steel bars (7) and the transverse pre-stressed steel bars (6), it is post-tensioned in both directions or it is pre-tensioned in one direction and post-tensioned in the other direction.

Abstract: A ride control system for controlling a plurality of vehicles on a path includes a path processor and a bi-directional voting circuit in circuit with the path processor. Each vehicle of the plurality of vehicles may include a vehicle processor supported by the at least one vehicle and shunt relays in circuit with the at least one vehicle processor. Each vehicle processor may be configured to close a respective shunt relay upon a predetermined condition of the vehicle whereby the bi-directional voting circuit is activated to notify all other vehicles.

Abstract: A method for extending a railway track downstream from an existing track end includes transporting a common track panel; positioning the common track panel downstream from the existing track, deploying an off-track moving mechanism and positioning an upstream end of the common panel vertically, in line with the existing track end; releasing the common track panel, removing the off-track moving mechanism; and installing the common track panel, by lowering the common track panel until the upstream end of the common track panel is aligned with the existing track end.

Abstract: A method for extending a railway track downstream from an existing track end includes transporting a common track panel; positioning the common track panel downstream from the existing track, deploying an off-track moving mechanism and positioning an upstream end of the common panel vertically, in line with the existing track end; releasing the common track panel, removing the off-track moving mechanism; and installing the common track panel by lowering the common track panel until the upstream end of the common track panel is aligned with the existing track end.

Abstract: Automatic machine for leveling and alignment of ballastless railway, prior to concreting, having a structure (1) that moves along the track, provided with fastening elements to, once located in the track section to be positioned, firmly grab both rails (10) keeping the track in suspension while it performs millimetric movements of displacement until placing it in the desired final position, both in plant and height of the rails and cant; said machine has a measuring system, which includes tilt sensors (11) and a total station (12) of GPS or topographic type, that allow to identify the actual position of the track, in real-time. It also has a control system that includes process software of the position data acquired by the measuring devices (11-12), from which it determines the required movements to be carried out to achieve the desired final position of the track.

Abstract: A machine (1) for picking up and storing rail fastenings (2) of a track (3) includes two rail fastening pickup devices (9). Arranged between these and a rear on-track undercarriage (4)—with regard to a working direction (6)—is a crawler track (24). At each longitudinal side of the machine, two devices (29) for guiding rails (30) are provided which are adjustable by drives (28) relative to the machine frame (5) and arranged one following the other in the longitudinal direction of the machine.

Abstract: A rail wagon (100, 400, 500, 700) is disclosed for the deployment of a panel of track or sleeper set from the wagon to an adjacent substantially parallel track bed in a single laying operation. Each wagon comprises a crane hoist (102, 403, 504) moveable from a transit position to an operational position and at least one stabilizing member in the form of an outrigger having an arm (108) and foot portion (109) to prevent tipping of the rail wagon during track or sleeper deployment. Methods of deployment of panels of pre-formed track and sleeper sets are also disclosed.

Abstract: In a method of loading several like coupled storage cars with bulk material, a first storage car is first filled with the bulk material by reducing the conveying speed mode of a bottom conveyor band in the first storage car to a bulk material storing speed mode while a transfer conveyor band of the adjacent storage car fills the first storage car, the storing speed mode of the bottom conveyor band in the first storage car is automatically adjusted in response to a measured amount of the bulk material accumulating in a pile so that the first storage car is filled to a maximal height, and after the accumulated pile has reached a forward end position, the conveying speed mode of the bottom conveyor band in the storage car adjacent to, and rearwardly of, the first storage car in the conveying direction is automatically reduced to the storing speed mode.

Abstract: A mechanism controls concurrency among database transactions through the use of serial ordering relations. The ordering relations are computed dynamically in response to patterns of use. An embodiment of the present invention serializes a transaction that accesses a resource before a transaction that modifies the resource, even if the accessor starts after the modifier starts or commits after the modifier commits. A method of concurrency control for a database transaction in a distributed database system stores an intended use of a database system resource by the database transaction in a serialization graph. A serialization ordering is asserted between the database transaction and other database transactions based on the intended use of the database system resource by the database transaction. The serialization ordering is then communicated to a node in the distributed database system that needs to know the serialization ordering to perform concurrency control.

Abstract: A machine for fastening rail plates to cross-ties, utilizing spikes or the like, and method therefore, is disclosed in the present invention. The preferred apparatus of the present invention teaches a system wherein there is provided a conveyor for conveying a plurality of laterally arranged, aligned ties, a loader for loading a single tie upon a template conveyer, and a positioner for positioning a tie at each station during the pre-plating process. The present invention further includes a template system for securing the cross-tie or tie in place, feeding and positioning the rail-plate in place, feeding, dispensing, and positioning the spikes in place, driving the spikes, and discharging the processed tie, the template system utilizing as a principle motive force the displacement of the template reciprocating drive piston for positioning the template, as well as dispensing the plates.

Abstract: A railway panel transport apparatus for moving prefabricated railway panels to installation sites includes a plurality of ties, a first rail, and a second rail. The ties are positioned in spaced parallel relation to support the first and second rails, which extend substantially the length of the railway panel. At least two truck assemblies are connected to the railway panel. The truck assemblies include a pair of travel wheels mounted thereon for engaging and traveling upon existing railway sections. Following transport to the installation site, the truck assemblies are removed and the railway panel is installed in a proper location.

Abstract: A railway truck assembly for performing a number of functions of repair, maintenance, replacement and other railway-orientated functions has a pair of trucks joined by one or more longitudinal beams which support hoists; the beam is pivoted for angular horizontal movement to accommodate curves in the track during transit and the beam having a length which spans a working space between the trucks and for the hoists to lift or deposit items or material from either or both trucks and transfer them to or from the working space.

Abstract: A transport wagon (50) for transporting track panels (53) has a wagon frame (56) which may be supported on on-track undercarriages (54) or alternatively on off-track undercarriages (55) and which has a loading surface (57) for laying down the track panel (53). The wagon frame (56) is composed of a main frame part (62) having two on-track undercarriages (54) and two off-track undercarriages (55) and two auxiliary frames (60,61) connected to the main frame part (62) by means of a universal joint (63). The said auxiliary frame has at its end remote from the joint (63) an on-track undercarriage (54) and a vertically adjustable off-track undercarriage (55).

Abstract: A track-bound mobile crane with a vertically-adjustable carrying device arranged on a vehicle frame and to which a guide carrier is attached. The guide carrier consists of two vertically-adjustable columns arranged across from one another at each end of the vehicle on both sides of the vehicle longitudinal axis. The guide carrier can be raised and lowered by the vertically adjustable columns.

Abstract: A mobile apparatus for loading and transporting an assembled track section and for laying the track section on a track bed comprises a track section hoisting device comprising an elongated carrier frame extending in the longitudinal direction of the track bed, pairs of lifting jacks spaced from each other in said direction, and drives for vertically adjusting the lifting jacks between a retracted position and an extended position in which the lifting jacks support the carrier frame on the track bed. An elongated transport car for supporting an assembled track section and the hoisting device is movable in this direction independently of the hoisting device. The elongated carrier frame and transport car each are comprised of two parts connected by a pivot between their opposite ends for pivoting the parts relative to each other about a vertical axis.

Abstract: A crane for raising and lowering a load, which crane includes a vehicle frame with end areas and a slewing device arranged on the vehicle frame. The slewing device includes at least two basic slewing columns slewable by 360.degree., mounted on the vehicle frame in the vehicle frame end areas. Additionally, a separate articulated slewing arm having at least two elements is located on each basic slewing column.

Abstract: A car for transporting a track switch comprises a beam-shaped frame, undercarriages supporting the beam-shaped frame on track rails, the undercarriages having axles extending perpendicularly to the longitudinal direction and the beam-shaped frame being centered with respect to the axles. At least two track switch loading platforms are mounted on the beam-shaped frame for pivoting about an axis extending in the longitudinal direction, the loading platforms being spaced from each other in the longitudinal direction. At least two drives link each loading platform to the beam-shaped frame for pivoting the loading platform, and fastening elements are provided for detachably connecting a track switch to the loading platforms for transporting the track switch.

Abstract: A system for the laying of panel track that includes a plurality of panel tracks, a railroad car containing the panel tracks, and a panel track lifter positioned in the railroad car for lifting the panel tracks from the railroad car and for placing the panel tracks exterior of the railroad car. Each of the panel tracks includes a first rail, a second rail, a plurality of ties extending between and beneath each of the rails, and a plurality of gage rods affixed at various locations along the rails. A tension bar extends angularly between the first and second rails so as to create a curvature in the rails. The railroad car includes a material container having a generally flat floor extending between a pair of side walls. The material container has trucks suitable for rolling along a panel track. The material container is made up of a plurality of railroad cars having a flat floor extending throughout the plurality of railroad cars.

Abstract: A points and crossing changer including an elongated frame having a plurality of extendible support members pivotally mounted thereon for horizontal movement about a vertical axis. Each support member includes a downwardly extendible telescoping shaft supported on a lower end by a tracked conveyor pivotally mounted thereon. Mounted to the frame is means for engaging selected sections of track subjacent frame wherein the frame and the selected section of track can be lifted by the telescopic shafts and propelled in an unlimited variety of horizontal directions by the tracked conveyors.

Abstract: The invention concerns a method and apparatus for replacing railway panels, including switches by providing a pair of cars adapted to carry a temporary track, the replacement panel and gantries, the car carrying the gantries being located over the panel required to be replaced and the gantries located in position; the old panel is raised by the gantries, the temporary track is located in the vacant space and the car carrying the new panel is rolled on to the temporary track and the new panel raised by the gantries, the temporary track removed and the new panel dropped into position.

Abstract: A tile making machine in which tiles are formed on pallets conveyed in succession through the machine has laterally spaced, longitudinally extending tracks for supporting the pallets. The pallets can be supported at different heights by the provision of a fixed track to provide a relatively low track level and another track removably supported by the fixed track to provide a higher track level. The higher track level enables pallets for tiles of flatter profile to be conveyed without requiring the pallet to have an excessive depth.

Abstract: A mobile apparatus for loading, transporting and laying an assembled track section comprises a track section carrier comprising an elongated carrier frame, track section gripping and holding devices mounted on the elongated carrier frame, and two pairs of transversely opposite lifting jacks arranged on the carrier frame for lifting and lowering the carrier frame, the jacks of each pair being fixedly connected to each other and the pairs of jacks being widely spaced from each other in a longitudinal direction to provide a high stability during lifting and lowering of the carrier frame. A self-propelled auxiliary vehicle is movable independently of the track section carrier and comprises a flatbed frame having two opposite ends and capable of receiving and supporting the carrier with the assembled track section gripped and held thereon, and a track-bound undercarriage and an off-track undercarriage at each end of the flatbed frame.

Abstract: A mobile apparatus for loading, transporting and laying an assembled track section comprises a self-propelled main vehicle comprising an elongated carrier frame, a pair of transversely aligned flanged wheels at each end thereof for engagement with, and support on, the rails of the assembled track section, a pair of lifting jacks at each carrier frame end associated with the flanged wheels, and a device for gripping the track section rails associated with each flanged wheel and associated lifting jack, the lifting jack being placeable on the track bed and operable to lift the carrier frame and flanged wheels with the assembled track section gripped by the rail gripping devices off the track bed, and an auxiliary self-propelled vehicle movable independently of the main vehicle and comprising a flatbed frame capable of receiving and supporting the carrier frame and flanged wheels of the main vehicle with the assembled track section gripped by the rail gripping devices, a track-bound undercarriage with flanged wh

Abstract: A train for carrying out the renewal of a railroad switch or crossing in a track comprises two chassis with a girder between them supported by two cranes on the respective chassis. Cross beams on the girder have hooks for gripping the switch or crossing. The girder is suspended from the cranes by rotary joints and an auxiliary winch has a cable connected to the switch or crossing off-center to provide for tilting the switch or crossing. At least one of the chassis is provided at its four corners with articulated arms and extensible columns provided with bogies for running on side rails. The arms can be swung in so that the bogies can run on standard gauge track.

Abstract: A track-bound carriage for receiving or laying an assembled track section from or on a track bed and for transporting the assembled track section in an operating direction, which comprises an elongated carrier frame, two undercarriages respectively supporting the forward and rear carrier frame halves on the assembled track section for movement therealong, each undercarriage including a flanged wheel engaging a respective one of the rails for support of the elongated carrier frame on the assembled track section, and a device for advancing the carrier frame stepwise in the operating direction, which includes two pairs of independently operable jacks arranged adjacent each other in the operating direction on each carrier frame half, each jack of each of the pairs being mounted at a respective one of the carrier frame sides outwardly spaced from a respective one of the tie ends, operation of the jacks vertically adjusting the jacks and enabling the jacks to engage the track bed, and one of the pairs of jacks on e

Abstract: A mobile apparatus for replacing an assembled section of track in a track renewal section, the assembled track section consisting of rails fastened to ties defining spaces therebetween, comprises a succession of transport vehicles having undercarriages capable of running on the track for moving therealong, and hoists for gripping and carrying the assembled track section are mounted on the transport vehicles. An elongated overhead girder extends in a plane above the transport vehicles and has longitudinally extending sides defining therebetween a guide track for moving the succession of transport vehicles therealong, and drives move the vehicles along the guide track.

Abstract: A machine to operate with at least one similar machine along a railway line to remove and install railway track portions and switches, has a portal structure extending transversely and straddling the railway line, and has telescopic uprights connected respectively to different telescopic cross-members, so that the uprights can be moved sideways independently of each other to a width sufficient to straddle a switch. At the base of each upright is a crawler track to run on the ballast at the sides of the railway line or switch. Four flanged wheels are mounted on the telescopic columns on the cross-members to move downwardly and run along the rails of the railway line. Below each cross-member are two pivotal hooks to grip the railway track portions and switches.

Abstract: A mobile arrangement for improving a track bed by interposing a layer of sand between the subgrade and ballast comprises a first self-propelled vehicle including a frame, a hoist mounted on the frame for lifting an assembled track section off the track whereby a trackless renewal section is created and a conveyor and discharge and distributing chute for ballast and sand, the vehicle frame having a length bridging the trackless renewal section and respective track sections adjoining the trackless renewal section at respective ends thereof in the regions of the vehicle frame ends. A second self-propelled vehicle includes a frame whose one end faces one end of the frame of the first vehicle in one of the adjoining track sections, a ballast excavating chain and a conveyor for the excavated ballast. A respective triple-undercarriage arrangement supports the one end of each vehicle frame, each triple-undercarriage arrangement consisting of two on-track undercarriages and an off-track undercarriage.

Abstract: A railroad track relaying train comprises, in addition to the cars for transporting the ballast screening machines and a car equipped with power-wrenches for fixing the tie-screws, a sequence of working cars including a tie- and rail-removing car, a ballast clearing car, and a tie and rail laying car, these cars being interconnected by means of coupling frames supported by caterpillar trucks adapted to keep the working cars on the selected path. The tie and rail removing car comprises an elevator capable of lifting and rotating at least one tie or a track span around ballast conveyors, in order to deposit at least one tie or track span upon a transport element. The train is capable of performing all of the operations necessary for removing the old track, excavating and screening the old ballast, and laying the new track on the screened ballast, without stopping its forward motion when removing the old track.

Abstract: Assembled track sections are replaced with a mobile apparatus moving along the track and having an elongated overhead girder extending above a transport vehicle or vehicles and projecting beyond an end thereof. A guide track extends in a transport plane along the girder and a trolley is mounted on the guide track for movement therealong, the trolley including a vertically adjustable hoist for lifting and lowering a respective track section and for conveying it along the guide track in the transport plane. Gantry supports for the girder project laterally beyond the longitudinally extending sides of the vehicle(s) for leaving therebetween a transverse space for permitting the passage of an assembled track switch section therethrough, the gantry supports including supports mounting the girder on the vehicle(s) and vertically adjustably supporting the projecting part of the girder on the ballast bed.

Abstract: A mobile apparatus for laying assembled track switch and crossing sections comprises a bridge-like carrier frame supported at each end by a track-bound undercarriage and a track-laying undercarriage mounted independently of the track-bound undercarriages for pivoting about a vertical axis through an arc of at least 90.degree. and for vertical adjustment. A hoist is mounted on the carrier frame between the undercarriages for gripping and transporting the assembled track sections.

Abstract: A mobile apparatus for laying railway track comprises a car running on the rails and a carrier frame with a track on which a power-driven trolley is mounted. The trolley includes a beam for carrying and laying an assembled section of the railway track including rails fastened to ties. A vertically and transversely adjustable flash butt welding machine is arranged below the carrier frame and in the region of the region of the forward end of the car for welding the rails of the assembled railway track section laid by the beam to the rails on the railway track whereon the car is mounted. Associated with the welding machine are devices for removing the welding bead resulting from the flash butt welding of the rails to each other.

Abstract: A rail roller device constructed to include a cylindrically shaped roll surface, the ends of which are provided with radially extending end plates or flanges from which extend the roller shaft. Opposite ends of the roller shaft extend through steel ball bearings mounted within mounting brackets which are fixedly attached to the device frame. At least one retaining ring is located about the shaft between a ball bearing and an end plate. The generally rectangular shaped frame of the rail roller device is formed of four frame members each constructed from a length of angle iron. The frame is constructed so that a pair of frame members located parallel to the longitudinal axis of the roll surface can be set between rail ties.

Abstract: The complete renewal of a railway road track, i.e. clearing and screening the ballast, and substituting new ties and rails for the old ones, comprises a continuous sequence of operations forming repeating cycles consisting in removing the old track, clearing and screening the ballast, laying a new track with a single passage of a train comprising, in addition to the apparatus necessary for performing the operations, and to the cars necessary for transporting the rails, ties and hardware accessories, at least one track-laying and removing lift of trucks equipped with gantries and frame trucks.

Abstract: A train assembly for replacement of an old rail track by a new one with long rails comprises a permanently coupled train section including an open-frame wagon with rails carrying gantries for removal of track panels through the open frame and placing new cross-ties. The open-frame wagon has a bogie able to run on the track but retracted during operation and replaced by caterpillar tracks running on the ballast, or by rollers running on the new rails placed temporarily beside the track. The new rails are then brought together and fixed on the newly-placed cross-ties, so that the rear part of the train assembly runs on the new track whereas the front part runs on the old track.