Abstract: A ride system includes a flume providing a flow path of a water ride and configured to accommodate a buoyant ride vehicle. The ride system also includes a support element extending into the flow path and at least partially submerged within the flow path. Moreover, the ride system includes a driving mechanism configured to actuate the support element such that the support element moves relative to the flow path in response to a control signal. The support element is configured to contact the buoyant ride vehicle to control movement of the buoyant ride vehicle along the flow path while the support element is being actuated. Further, the ride system includes a controller configured to generate the control signal based at least in part on a location of the buoyant ride vehicle in the flow path and a timer controlling activation of a show element.

Abstract: The present invention is related to a method and system for expandable modular raft and a water ride using the same. In one embodiment, the expandable modular raft can include a raft, and a base unit attached to the raft and configured to receive a building block. The building block can be configured to be force fit to the base unit and/or each other. Furthermore, the building block could be formed from various shapes. The expandable modular raft can be used in a water ride and can float along a path such as a river. Interactive units such as water guns can be placed along the path to allow observers to interact with the riders. Furthermore, a raft area can be located adjacent the path to store the rafts, while a building block area can be located adjacent the path to store the building blocks.

Abstract: A amusement ride feature comprises a waterslide sliding surface, a vehicle having a vehicle bottom surface adapted to slide on said sliding surface and to convey at least one rider thereon, and at least one reaction plate and at least one permanent magnet each mounted to one of said vehicle and said sliding surface. The at least one reaction plate and the at least one permanent magnet are positioned to affect motion of the vehicle when the motion of the vehicle brings the reaction plate under the influence of the permanent magnet.

Abstract: A reaction component or plate for a linear induction motor incorporates a flexibility increasing feature and a wear resistant feature.

Abstract: The present invention is related to a method and system for expandable modular raft and a water ride using the same. In one embodiment, the expandable modular raft can include a raft, and a base unit attached to the raft and configured to receive a building block. The building block can be configured to be force fit to the base unit and/or each other. Furthermore, the building block could be formed from various shapes. The expandable modular raft can be used in a water ride and can float along a path such as a river. Interactive units such as water guns can be placed along the path to allow observers to interact with the riders. Furthermore, a raft area can be located adjacent the path to store the rafts, while a building block area can be located adjacent the path to store the building blocks.

Abstract: A boat ride with precise speed and orientation control. The ride includes a track assembly positioned in a water basin and includes front and rear bogies engaging the track assembly. The boat ride includes a passenger boat and front and rear tethering assemblies coupling the front and rear bogies, respectively, to the boat. The ride includes a propulsion assembly positioned along the track assembly that is operable to independently propel, with linear motors, the front and rear bogies at the same or differing first and second velocities by applying a magnetic force to reaction plates on the bogies. The track assembly includes a joined section and a divided section, which includes a primary track on which the front bogie travels and a secondary track, spaced apart from the primary track, on which the rear bogie travels. The boat may be rotated to any orientation in the divided track section.

Abstract: A waterslide amusement ride having in a portion thereof, a linear induction motor to efficiently and effectively affect the motion of a vehicle sliding on the ride. The linear induction motor comprises linear induction motor units embedded below a sliding surface, and a reaction plate mounted to the bottom of the vehicle. Depending on the configuration of the linear induction motor units and the reaction plate, the linear induction motor drive can be used to accelerate the vehicle, decelerate the vehicle, maintain the speed of the vehicle up an uphill section, or rotate the vehicle.

Abstract: A guest lap bar locking assembly for releasably positioning a lap bar within a water ride at an entertainment park includes a lap bar locking assembly that is dimensioned and configured to provide continuously variable position locking of the lap bar.

Abstract: At least one actuator for actuating a guest lap bar locking assembly for releasably positioning a lap bar includes a rotatable actuator hub, a telegraph rod interconnected with the rotatable actuator hub, an operator arm also extending from the actuator hub and a toggle latching assembly interconnected with the actuator hub. The toggle latching assembly provides for rotation of the telegraph rod to actuate the lap bar locking assembly to prevent movement of the lap bar in at least one particular direction.

Abstract: A roller coaster installation comprising a stretch of water, along which runs a train of vehicles (104) provided laterally with hydrodynamic brakes comprising a fin (102) or a nozzle, becoming immersed in the mass of water (A) and discharging this in the form of rising sprays (B).

Abstract: At least one actuator for actuating a guest lap bar locking assembly for releasably positioning a lap bar includes a rotatable actuator hub, a telegraph rod interconnected with the rotatable actuator hub, an operator arm also extending from the actuator hub and a toggle latching assembly interconnected with the actuator hub. The toggle latching assembly provides for rotation of the telegraph rod to actuate the lap bar locking assembly to prevent movement of the lap bar in at least one particular direction.

Abstract: A reaction component or plate for a linear induction motor incorporates a flexibility increasing feature and a wear resistant feature.

Abstract: Passenger boats are accelerated along a submerged guide rail structure that is arranged in various closed loop courses, including “Figure-Eight,” hour-glass, serpentine and oval patterns, as well as linear guide track structures that extend in parallel between a launch station and a return station. A dual “Figure-Eight” watercourse includes a simulated jump ramp and an under-ground tunnel arrangement. The launching and operating speed of each boat relative to the other is controlled so that the boats approach and pass in close proximity to each other and then recede from each other as they travel in opposite directions along adjacent guide track sections, and in passing, project water spray onto each other.

Abstract: Passenger boats are accelerated along a submerged guide rail structure that is arranged in various closed loop courses, including “Figure-Eight,” hour-glass, serpentine and oval patterns, as well as linear guide track structures that extend in parallel between a launch station and a return station. A dual “Figure-Eight” watercourse includes a simulated jump ramp and an underground tunnel arrangement. The launching and operating speed of each boat relative to the other is controlled so that the boats approach and pass in close proximity to each other and then recede from each other as they travel in opposite directions along adjacent guide track sections, and in passing, project water spray onto each other.

Abstract: Passenger boats are mounted on an undercarriage assembly that includes rail-mounted centering wheels. The passenger boats are accelerated by linear induction drive motors mounted on a guide rail structure. Thrust is applied to the racing boats by magnetically conductive reaction plates that are attached to the undercarriage assembly and are movable through linear flux slots formed in the induction stators of the linear induction motors. The submerged guide track structure is arranged in various closed loop courses, including “Figure-Eight,” an hour-glass, serpentine and oval patterns, as well as parallel guide track structures that extend between a launch station and a return station. A dual “Figure-Eight” watercourse includes a simulated jump ramp and an underground tunnel arrangement. In the continuous loop guide structure, two or more boats are launched and separation is maintained by a safety block arrangement.

Abstract: Passenger boats are mounted on an undercarriage assembly that includes rail-mounted centering wheels. The passenger boats are accelerated by linear induction drive motors mounted on a guide rail structure. Thrust is applied to the racing boats by magnetically conductive reaction plates that are attached to the undercarriage assembly and are movable through linear flux slots formed in the induction stators of the linear induction motors. The submerged guide track structure is arranged in various closed loop courses, including “Figure-Eight,” an hour-glass, serpentine and oval patterns, as well as parallel guide track structures that extend between a launch station and a return station. A dual “Figure-Eight” watercourse includes a simulated jump ramp and an underground tunnel arrangement. In the continuous loop guide structure, two or more boats are launched and separation is maintained by a safety block arrangement.

Abstract: A mobile machine for rehabilitating a track has a machine frame extending in a longitudinal direction and supported by undercarriages for mobility on the track in an operating direction, the machine frame being composed of a leading frame part with respect to the operating direction and a trailing frame part connected to the leading frame part by an articulation, with at least one working unit being mounted on the machine frame for adjustment relative thereto. A reference system for controlling the position of the working unit is arranged on the leading frame part and consists of a reference line extending in the longitudinal direction between two of said undercarriages, a measuring axle designed to roll on the track, and a measuring device connected to the measuring axle for detecting a movement, transversely to the longitudinal direction, of the measuring axle relative to the reference line.

Abstract: A system for adjusting the separation distance between adjacent rails over which vehicles travel, the apparatus including a vehicle moveable along the rails and including a boom or pivoted art member mounted on the frame, the boom or arm extending in cantilevered fashion from a pivot mount to and terminating adjacent one end of the vehicle. A rail gripper is mounted on, and oriented normal to, the boom or arm and includes telescoping members extending laterally of and between the rails. Each end of the rail gripper is provided with one or more lug members adapted to engage a respective rail for the applying of a moving force to the rail in a direction substantially normal to the length of the rail and selectively toward or away from its companion rail.

Abstract: A track lining machine comprises a machine frame supported on the track by undercarriages, a track stabilization assembly vertically adjustably mounted on the machine frame and engaging the track, the track stabilization assembly comprising a vibrator for generating oscillations of the track engaged by the assembly, a reference system comprising a lining reference base, a lining drive linking the track stabilization assembly to the machine frame for displacing the track engaged by the track stabilization assembly in a direction extending transversely to the track into a position controlled by the lining reference base, and a spacing member interposed between the lining drive and the track stabilization assembly.

Abstract: A track is tamped and stabilized at a desired level by lifting the track to a temporary level, intermittently tamping the track and then advancing along the track in an operating direction in continuously repeated tamping cycles, and in continuously repeated stabilizing cycles parallel to and following the tamping cycles in the operating direction, intermittently stabilizing the tamped track at the desired level by imparting to the track horizontal vibrations extending in a direction perpendicular to the track, and applying to the vibrating track a vertical load at a value automatically controlled to rise to a maximum value required to lower the track to the desired level and then reduced to a value to relieve the load.

Abstract: A mobile track tamping machine for simultaneously tamping ballast under a plurality of track ties comprises a machine frame extending in a longitudinal direction and supported by undercarriages on the track for movement in an operating direction. Two tamping tool assemblies are sequentially arranged in the longitudinal direction, each tamping tool assembly being capable of simultaneously tamping ballast under at least two track ties and comprising two tamping tools adjacent each other in the longitudinal direction and reciprocable from an initial position to a tamping position, the two tamping tools defining the distance between the track ties in the initial position. A reciprocating drive is connected to the two tamping tools, and the tamping tools of the two tamping tool assemblies adjacent each other in the longitudinal direction are spaced a distance corresponding to the distance between the track ties.

Abstract: A method of tamping a plurality of ties fastened to rails of a track comprises repeated cycles of a first tamping operation comprising the steps of lifting the track to a desired level and simultaneously tamping ballast under two groups of adjacent ties, each group consisting of at least two ties and the two groups being separated by at most two ties between the groups, and a second tamping operation independent of, and following, the first tamping operation, the second tamping operation comprising the step of tamping ballast under the ties between the two groups.

Abstract: A dynamic track stabilizer comprises a machine frame supported on the track by undercarriages for mobility along the track, and two track stabilization units linked to the machine frame by vertical adjustment drives, the track stabilization units being spaced from each other in the longitudinal direction and running on the track. Each track stabilization unit comprises a generator of oscillations connected to a drive for producing oscillations extending perpendicularly to the longitudinal direction, and the oscillation generators are arranged to produce oscillations which are displaced in phase.

Abstract: An amusement ride includes a vehicle traveling down a chute through a region of water. The vehicle is shaped to minimize splashing and to allow water to flow away from the vehicle. The vehicle flanks are curved to deflect splashing water down and away from the vehicle, and the vehicle bow has upper flanks to deflect water down and away from the vehicle. The vehicle bottom has a concave channel to accommodate water displaced by the vehicle. The vehicle has sets of wheels for traveling, for guiding lateral motion, and for interlocking with floating prevention mechanism. A groove along each side of the vehicle accommodates a splash prevention member on the water chute.

Abstract: A maintenance vehicle and associated method for measuring and correcting the level of a railroad track in a single pass. An instrument carriage, or frog, is towed by and in fixed relationship to the maintenance vehicle. The frog carries at least one inclinometer to measure at least one of longitudinal level and crossfall. As the vehicle periodically stops to work the track e.g. tamping or stoneblowing), the inclinometers are provided with the settling time necessary for accurate readings. In an additionally disclosed method, the track is measured and modeled prior to working using a primary measurement system and is then measured and modeled a second time while the track is worked using the frog.

Abstract: A method of adjusting the geometry of a stretch of a railway track uses a track maintenance machine which runs on the track and which has at least one measuring reference system (13) guided by feelers (10,12) on the track and sensors (14,15) for determining the position of the track relative to the measuring reference system (13) and which also has track correcting tools (16). The method comprises performing a preliminary measuring run to acquire a series of track measurements at spaced points along the track by the sensor (14). A design profile is then determined from these measurements and correction values prescribed necessary to achieve the design profile. Then a maintenance run is performed during which the track correcting tools are controlled in accordance with the prescribed correction values whereby to adjust the track geometry.

Abstract: A method of continuously measuring the resistance of a track to transverse displacement comprises the steps of continuously advancing a dynamic stabilizer along the track, applying a power to the dynamic stabilizer to impart oscillations to the track extending transversely to the track in a horizontal plane, and recording a datum corresponding to the applied power as a correlated measurement value of the transverse track displacement resistance (QVW).

Abstract: Track laying apparatus and associated methods are provided for installing rails on blocks. In a preferred embodiment, a track laying apparatus has an installation portion for installing the blocks to the rails at predetermined lateral and longitudinal spacings, relative to the lengths of the rails, and a positioning portion for propelling and steering the apparatus and lifting and laterally spacing the rails.

Abstract: A ballast tamping machine comprises an elongated machine frame, and a tool carrier frame supporting a ballast tamping head, a track lifting and lining unit and an auxiliary rail lifting device comprising a rail clamping element and drive for vertically and transversely adjusting the device for engagement of a rail of a branch track adjacent the track by the rail clamping element. A displacement drive connects the tool carrier frame to the machine frame for longitudinally displacing the tool carrier frame relative to the machine frame, and at least one undercarriage supports each frame on the track.

Abstract: A track surfacing machine for correcting the track geometry includes a machine frame supported by undercarriages for mobility in an operating direction and including lining drives for correcting the track in a direction transversely to the track and measuring carriages rolling on the track and provided with measuring instruments. The measuring carriages form with the machine frame as well as with measuring instruments a reference system for detecting the actual track geometry, with the machine frame defining a reference base. Associated with the forward and rear measuring carriages of the reference system in operating is a measuring unit for detecting a cant or lateral inclination of the track, with a pressure pickup being provided for determining the lining forces of the lining drives.

Abstract: A mobile track tamping and ballasting machine movable along a railroad track in a first operating direction and a reverse direction, which comprises a first machine frame, a second machine frame, an articulated coupling connecting the machine frames, undercarriages supporting the machine frame on the railroad track for movement therealong, the first machine frame supporting a vertically adjustable ballast tamping unit and a track lifting and lining unit preceding the ballast tamping unit in the first operating direction, and the second machine frame supporting a plow for ballasting the track and a ballast broom preceding the ballasting plow in the first operating direction.

Abstract: A mobile machine for compacting ballast comprises a machine frame extending in a longitudinal direction and supported by undercarriages on the track rails, and a ballast bed stabilizing apparatus vertically adjustably mounted on the machine frame. The apparatus comprises a vibrator imparting to the apparatus vibrations extending in a horizontal plane and perpendicularly to the longitudinal direction, flanged rollers spaced apart in a direction extending perpendicularly to the longitudinal direction and supporting the apparatus on the track rails for movement therealong, each flanged roller being mounted on a stub shaft, and a spreading mechanism mounted between the spaced-apart flanged rollers for changing the distance therebetween.

Abstract: A mobile track tamping machine arrangement comprises a first machine and a second machine, each machine comprising a self-propelled elongated machine frame supported on undercarriages running on the track, the first machine preceding the second machine in the operating direction and the machine frame of the first machine being longer than that of the second machine. Vertically adjustable track tamping tool units are mounted on each machine frame, the tamping tool units mounted on the longer machine frame being transversely adjustable sideways beyond the longer machine frame, and a detachable coupling connects facing ends of the machine frames.

Abstract: A mobile machine for leveling, lining and tamping a track, has an elongated machine frame supported on undercarriages for continuous movement along the track in an operating direction during a leveling, lining and tamping operation. The machine frame comprises three machine frame parts arranged successively adjacent each other in a direction of elongation of the machine frame and pivotally linked to each other, one of the machine frame parts being an auxiliary trussing linking the two adjacent machine frame parts to each other during the operation. A carrier frame is supported on at least one undercarriage for intermittent movement along the track relative to the continuously moving machine frame, the one machine frame part bridging over the carrier frame, and a track tamping unit and a track lifting and lining unit are mounted on the carrier frame.

Abstract: A ballast tamping machine comprises a machine frame supported on undercarriages, a tamping unit vertically adjustably mounted on the machine frame and comprising reciprocable vibratory tamping tools, and a track lifting and lining unit mounted on the machine frame and comprising lifting and lining drives, a flanged roller and a lifting tool. An auxiliary track lifting device is associated with the track lifting and lining unit, the auxiliary track lifting device comprising a carrier frame, a tool for gripping a branch track rail mounted on the carrier frame end, a lifting drive, a displacement drive for adjusting the branch track rail gripping tool on the carrier frame relative to the machine frame, and a part for contacting and resting on the branch track rail mounted adjacent the branch track rail gripping tool.

Abstract: A rail threader comprising a top plate having side plates extending downwardly from the opposite sides thereof. A vertically disposed plate extends upwardly from the top plate and is adapted to serve as an abutment for the loose rail during the threading operation. The inside surface of one of the side plates has a pair of bars extending inwardly therefrom. When the rail threader has been positioned on a rail, a spacer bar is positioned between one side of the rail and the inside surface of the other side plate. A pair of bolts threadably extend through the other side plate and draw the bars on the first side plate into engagement with one side of the rail. The rail threader is securely held onto the rail by the engagement of the rods and the spacer bar which are urged into engagement with the opposite sides of the rail by the bolts. The loose rail may be threaded into the center of the tracks or threaded outwardly from the center of the tracks through the use of the rail threader.

Abstract: A rail puller for attachment to the end of a rail comprising a top plate having side plates extending downwardly therefrom in a spaced-apart relationship. The bottom surface of the top plate is provided with a centrally disposed guide slot formed therein adapted to receive the tapered end of a wedge. An elongated rod is secured to the inside surface of each of the side plates near the lower end thereof. The puller is installed on a rail by slipping the same over the end of the rail. A wedge is then inserted into the guide slot of the top plate and is driven thereinto to force the elongated rods upwardly into frictional engagement with the underside of the head of the rail. A lifting bracket is provided on the top surface of the top plate and chain hooks are mounted on the exterior surfaces of the side plates to facilitate the connection of the puller to either a hoisting device, a Hy-Railer or the like.

Abstract: A mobile ballast cleaning machine comprises a machine frame, undercarriages supporting the machine frame for mobility on the track, an excavating chain mounted on the machine frame and arranged to excavate the ballast to expose the subgrade, a ballast screening installation arranged to receive the excavated ballast from the excavating chain and to clean the received ballast, a conveyor arrangement for conveying the cleaned ballast for distribution on the exposed subgrade, a power-actuated, vertically and transversely adjustable track lifting device mounted on the machine frame, and a vibrator connected to the track lifting device, the vibrator being arranged to generate horizontal oscillations extending transversely to the longitudinal direction.

Abstract: A continuously advancing dynamic track stabilization machine comprises a first cross level measuring element arranged at the machine frame front end and generating reference signals corresponding to the measured cross level at successive points as the machine continuously advances, a second cross level measuring element arranged adjacent a track stabilization assembly spaced from the front end and generating a signal corresponding to the measured cross level, and a control for actuating the drives for applying a vertical load to the track rails and for vibrating the track in a horizontal, transverse direction. The control is arranged to receive the reference signals from the first cross level element, to store the received reference signals until the second cross level element has reached the successive points, to compare the stored reference signals with the signals generated by the second cross level element to obtain a control signal, and to transmit the control signal for actuating the drives.

Abstract: A track working machine for the controlled lowering of a track comprises a machine frame, at least one undercarriage supporting the machine frame on the track for mobility in an operating direction, a track stabilization unit for compacting the ballast whereby the track is lowered, the track stabilization unit being vertically adjustably mounted on the machine frame and including rail-engaging roller tools subjected to substantially horizontal vibrations extending transversely to the machine frame and the track, and a broom vertically adjustably mounted on the machine frame ahead of the track stabilization unit in the operating direction, the broom being rotatable about an axis extending transversely to the machine frame and the track.

Abstract: In the method, the actual position of a track (1) is measured and the theoretical position is calculated, and the distance therebetween is calculated or measured, the track repair being controlled directly on the basis of this distance. The method is based on the principle that a survey line is directed from a known point (A) to another known point (B) on the basis of which angle data are obtained. Thereafter the survey line is directed to a measuring point (C) which is observed or controlled continuously. The measuring point (C) moves along the track (1). The distance from the measuring point (C) to the point (A) along the track or along a straight path is measured continuously by an automatic measuring device, in addition to which angle data are measured continuously from the point (A). The position of the track and distances to the known geometry of the track (1) or to the geometry of the track (1) as calculated on the basis of the position data are determined on the basis of these measurements.

Abstract: A continuously advancing track working machine for compacting ballast comprises a self-propelled machine frame supported by undercarriages on the track for mobility in an operating direction and a track stabilization assembly vertically adjustably mounted on the machine frame between the undercarriages. The track stabilization assembly comprises drives for vertically adjusting the assembly, oscillatory rolling tools arranged for engaging the rails, vibrators for oscillating the rolling tools, and spreading drives for pressing the rolling tools against the gage sides of the rails.

Abstract: A mobile track leveling, lining and tamping machine comprising a ballast tamping assembly mounted on an elongated machine frame and a track lifting and lining unit for correcting the position of the track, the unit being mounted on the machine frame adjacent the ballast tamping assembly and preceding the ballast tamping assembly in the operating direction, and the track lifting and lining unit comprising a two-part tool carrier frame extending in the direction of elongation of the machine frame, a first tool carrier frame part being arranged adjacent the ballast tamping assembly and rearwardly of a second tool carrier frame part in the operating direction, two pairs of flanged wheels supporting the tool carrier frame on the track rails, the two pairs of flanged wheels being rotatable about respective horizontal axes defining a plane and being spaced from each other to form a front pair and a rear pair of flanged wheels on the first tool carrier frame part in the direction of elongation of the machine frame an

Abstract: A mobile machine for clearing and planing ballast comprises a machine frame, undercarriages supporting the machine frame for mobility on the railroad track, at least one vertically and transversely adjustable ballast clearing tool connected to the machine frame for clearing ballast laterally outwardly of a respective rail and for planing the ballast upon vertical and transverse adjustment of the tool, the tool being longitudinally adjustably mounted on the machine frame for adjustment in the direction of the railroad track supported by the ballast, and drives connected to the tool for vertically, transversely and longitudinally adjusting the tool.

Abstract: The crosslevel measuring adapter includes a battery-powered electronic level sensor, a processor unit, a display, and data, display and power switches mounted in a housing through which an inclination measuring bar passes. The adapter unit may be mounted anywhere intermediate the ends of the bar which engage spaced railroad tracks during a measurement cycle. When the power switch is activated, the adapter initiates a zero mode to determine an automatic zero offset value to be automatically applied to subsequent crosslevel measurement values. The adapter calculates warp and crosslevel index values from a plurality of crosslevel measurements, and if the warp or crosslevel index values exceed respective threshold levels, automatic display of the value is initiated. Otherwise, measured crosslevel values are automatically displayed and calculated values are displayed by activation of the display switch.

Abstract: The specification discloses an improved railroad track curve liner for more accurately locating track transition points to more accurately calculate an improved track configuration as a funcion of the existing track configuration. The curve liner is mounted on a track tamper. During a first pass over the track, the curve liner acquires track ordinate information. After calculating the ideal track configuration, the tamper laterally shifts the track to the ideal configuration in a second pass over the track. The improved track configuration is calculated in recognition that the ordinate graph is not linear in all areas--particularly at tract transition points.

Abstract: A mobile track leveling, lining and tamping machine comprises four ballast tamping units mounted between the undercarriages of the machine and immediately preceding the rear undercarriage in the operating direction. The ballast tamping units are mounted for independent transverse and vertical adjustment with respect to the machine frame by power drives, a respective one of the ballast tamping units being arranged at the gage side and the field side of each rail, and each ballast tamping unit comprising a pair of vibratory tamping tools reciprocable in the direction of the track and immersible in the ballast with a respective one of the ties positioned between the tamping tools.

Abstract: A universal mobile track leveling, lining and tamping machine useful for work in track switches and tangent track comprises four ballast tamping units mounted between the undercarriages of the machine and immediately preceding the rear undercarriage in the operating direction. The ballast tamping units are mounted for independent transverse and vertical adjustment with respect to the machine frame, a respective one of the ballast tamping units being arranged at the gage side and the field side of each rail, and each ballast tamping unit comprising a pair of vibratory tamping tools reciprocable in the direction of the track and immersible in the ballast with a respective one of the ties positioned between the tamping tools. Each unit is independently vertically adjustable on an independent vertical guide and independently transversely adjustable on at least one transverse guide.

Abstract: A mobile apparatus for sequentially exchanging selected consecutive groups of oil ties in an existing railroad track for groups of new ties while retaining groups of old ties therebetween to support the mobile apparatus on the track, comprises at least one bridge-like work vehicle having a frame defining an upwardly recessed portion between respective ends thereof, and a succession of different individual devices mounted in the recessed frame portion of a respective work vehicle and operative to effectuate different sequential operations for exchanging the selected old ties for the new ties, the tie exchanging devices including at least two tie pulling and inserting devices arranged for longitudinal displacement within view of an operator's accommodation. A respective drive displaces each tie pulling and inserting device with respect to the work vehicle frame along a displacement path extending in the direction of the longitudinal extension of the work vehicle frame.

Abstract: A machine for exchanging old ties for new ties, which comprises a self-propelled standard railroad vehicle comprising a machine frame, undercarriages supporting the machine frame for mobility on the railroad track, a drive for advancing the vehicle in an operating direction, and an operator's cab. A tie exchanging device is connected to the machine frame and arranged within sight of the operator's cab, the tie exchanging device being operable for withdrawing the old ties and inserting the new ties and comprising a longitudinally adjustable tie gripping means including a tie clamp, a drive for longitudinally adjusting the tie gripping means, and respective drives for vertically adjusting and for operating the tie clamp between tie engaging and tie releasing positions.