Abstract: A main grinder of a bridge crane, intended to be supported by its ends to end girders of the bridge crane and which comprises an elongated box-type central web, whereby there is, formed in the central web on at least one end of the main girder, a cutting slot running substantially in the longitudinal direction of the main girder, and connected to this cutting there is a knife plate, extending from a bottom of the cutting slot substantially to the end of the main girder, for supporting to the end girder.

Abstract: A bogie is capable of being moved from a rest configuration to an active configuration in which the bogie carries at least one vertical load. The bogie includes a chassis, at least one pair of wheels, and a shaft extending along an axle axis for each pair of wheels. Each wheel has a wheel hub extending along a hub axis and an axle box attached to the chassis and receiving the associated hub. Each hub is rotatable relative to the associated axle box. For each hub, the hub axis forms a non-zero camber angle with the axle axis of the associated shaft when the bogie is in the rest configuration.

Abstract: A vibration isolation system for compactly mounting a vibrating component, such as an air compressor, to an object, such as an air tank, is described. The system may include a rod and bumper system to isolate the vibrations generated by the air compressor from the vehicle or object that it is mounted to. A primary isolation subsystem may include a rod suspension design which consumes significantly less space than existing solutions. The rod is able to achieve equal spring rates in any direction.

Abstract: A releasable wheel assembly includes a bracket having multiple bosses, each boss including a hole that receives an axle. A pair of wheels are mounted on the axle and a pair of locking caps fit over respective ends of the axle, the locking caps each including a clip for engaging the axle at a circumferential groove to prevent movement of the locking cap along the axle. The wheel assembly can be mounted to a carry bag or other storage unit by mounting the bracket to the storage unit, where the wheels and axle can be easily removed from the bracket.

Abstract: A dolly system is disclosed, which overcomes drawbacks related to unwanted noise and jerks of prior art dolly systems. The dolly system comprises wheel assemblies (130) that have independently rotating lateral support wheels (132, 133) in combination with a center wheel (131) that interact with a continuous resilient element (122) when rolling along a rail track, without encountering any gaps or bumps and without producing squeal noise due to so-called wheel-climbing that may occur in curves along the rail track.

Abstract: A releasable wheel assembly includes a bracket having a plurality of bosses, each boss including a hole that receives an axle. A pair of wheels are mounted on the axle and a pair of locking caps fit over respective ends of the axle, the locking caps each including a clip for engaging the axle at a circumferential groove to prevent movement of the locking cap along the axle. The wheel assembly can be mounted to a carry bag or other storage unit by mounting the bracket to the storage unit, where the wheels and axle can be easily removed from the bracket.

Abstract: A rail-road intermodal freight system. In an embodiment, a plurality of L-cars are provided. In an embodiment, each L-car may be configured for support at its forward end on a preceding L-car, and at a rear base on a set of flanged rail wheels. In implementing the system, a freight yard is provided with rail components which are switchable to enable decoupling and a turn-in-place operation, wherein each care is lifted from the preceding L-car in the train, and the neck portion of the L-car lowered to the ground. When in the lowered position, downwardly extending legs on the over-the-road trailer enable an over-the-road tractor to attach the over-the-road trailer in conventional fashion, for removal of the over-the-road tailer from the L-car. Loading of an over-the-road trailer on the L-car takes place via a reverse process, wherein the trailer is backed up on to the L-car.

Abstract: A low-floor railcar bogie of the present invention includes: a bogie frame including a pair of left and right side beams and a cross beam, each of the left and right side beams including a front portion, an intermediate portion, and a rear portion in a vehicle longitudinal direction, the intermediate portion being located at a position lower than the front portion and the rear portion, the cross beam connecting the intermediate portions of the pair of side beams each other; a pair of front and rear axle beams formed separately from the bogie frame, respectively located on a front side and rear side of the cross beam, and each extending in a vehicle width direction; independent wheels rotatably supported by left and right side portions of the axle beams, respectively; primary suspensions configured to elastically couple the front and rear portions of the side beams and the left and right side portions of the axle beams; and secondary suspensions provided on upper surfaces of the front and rear portions of the

Abstract: An articulating camera transport apparatus and corresponding methods involving an articulating camera truck for accommodating a camera element and for engaging a set of camera dolly tracks, the tracks having a curvature, the truck including a carrier and an undercarriage, the undercarriage having a plurality of articulating wheels and a structure for gimbaling the plurality of articulating wheels for accommodating the curvature and for facilitating a smooth passage of the truck along the tracks. The gimbaling structure has a gimbaling mechanism which includes a rocker arm.

Abstract: In an improved track wheel system for a camera dolly, a kingpin is pivotably attached to the dolly chassis and an axle is attached to the kingpin. A bushing is placed on a first section of the axle, a wheel bearing is attached to the bushing, and a first track wheel is attached to the wheel bearing. A spacer is placed on a second section of the axle and a stop is attached to the end of the axle. The stop preferably comprises a quick release clip which can be easily removed and replaced to remove the spacer from the axle. With the spacer removed, the first track wheel is free to shift laterally on the axle. A second track wheel of the same construction is attached to an opposite side of the kingpin.

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 idler wheel axle for single-axle or double-axle chassis of rail vehicles having individually mounted wheels and U-shaped, dropped-framed vehicles with lateral carrying legs, wherein each wheel is rotatably mounted on the inside of the associated carrying leg, and on an axle stub of the carrying leg via a wheel mounting, and wherein each wheel is torsionally connected on an inside thereof to a shaft that extends outward through orifices within the wheel and the carrying leg.

Abstract: A self steering railway bogie configured to run on a railway track having two opposed rails defining a track centerline therebetween. The bogie has a forward end and a rearward end and includes a pair of axle sets having a forward axle set and a rearward axle set disposed at the forward end and at the rearward end of the bogie, respectively. Each axle set has a pair of independently rotating wheels defining wheel axes, each wheel being disposed at a respective side of a corresponding axle set and further having a rail-engaging profile such that a wheel of each axle set moving away from the track centerline rises and a wheel of each axle set moving toward the track centerline falls.

Abstract: A camera dolly has a track wheel system including a kingpin pivotally supported on a dolly chassis. A kingpin tube extends laterally from the kingpin. An axle is pivotally supported within the tube on pins. A track wheel around a bearing is supported on a bushing on the axle. A knob unit threaded into the axle may be turned into a locked position wherein the track wheel is supported as in a conventional axle. For use on curved track, the knob unit is released or backed out, allowing the track wheel to shift laterally, to accommodate moving on curved dolly track, and to allow the wheel to steer on the track at a proper steering angle, by pivoting on the pins.

Abstract: A running gear unit for low-floor rail vehicles includes a running gear frame on which individual wheels are rotatably mounted through a respective rocker and the rocker is articulatingly attached and supported by primary springs. The running gear frame is connected to a car body of the low-floor rail vehicle through two articulated rods having one end being articulatingly mounted at a distance from one another on a crossmember of the running gear frame and another end being likewise articulatingly attached to the car body. The car body is supported on the running gear frame through secondary springs being mounted in pockets near transverse ends of the crossmember. Transverse stops are disposed at a distance from one another in the crossmember for limiting transverse movement of the car body relative to the running gear unit.

Abstract: A rail vehicle guide and support arrangement including a bogie having independent wheels, has a crossbeam fastened to a vehicle body, so as to be perpendicular to the vertical plane containing the longitudinal axis of the vehicle, in proximity to one end of the body. Two longitudinal members each equipped with at least two wheels are mounted on an articulation member carried by the crossbeam on each side of the vertical lane, and connected to each other by a brace which is mounted on a ball joint. Each longitudinal member is provided with an articulation and each is composed of a longitudinal frame member articulated to the crossbeam and extended by a directional arm which is articulated, about a substantially vertical pivot, to the longitudinal frame member and is equipped at its free end on a wheel. Each directional arm is connected to the brace by rods forming a deformable quadrilateral which ensures correct orientation of the wheels while traversing curves.

Abstract: A three-dimensional single-wheel suspension for wheels of a railed vehicle, where a wheel unit, including a wheel, a wheel mounting, a non-rotating wheel carrier, and a drive and/or braking mechanism, is provided to execute steering and/or cushioning movements relative to the vehicle. The wheel carrier is movably connected to the vehicle via linkage rods, and is also connected to the wheel carrier of the oppositiely disposed wheel. The point of connection of at least one of the linkage rods to the vehicle is adjustable as a function of such vehicle states including forward or rearward travel, straight-ahead travel or travel through a curve, and braking or driving, and/or including a function of the state of wear of the wheel.

Abstract: A truck having a pair of wheels mounted by individual stub axles to longitudinal members of a frame. Lateral members of the frame received the forces from the wheels via the longitudinal members and forces from the car via air springs mounted to the lateral members adjacent the longitudinal members. The stub axles are easily removed from U-shaped retainers. A sleeve through the hollow axis retains the bearings to the axle. Half shafts interconnect a gear box and the stub axles for driven trucks and the interconnections are dimensioned to allow the shafts to be removed axially through the hollow axle.

Abstract: A bogie for use with a railway wagon, comprising a rigid horizontal frame adapted to be vertically pivoted to the underside of the wagon by a central vertical pivot, also with the interposition of a large diameter ball bearing assembly, co-axial with the pivot and positively maintaining the frame parallel to the bottom of the wagon. Rail-engaging wheels are each supported below the frame by an independent suspension assembly. Each of the latter comprises a pair of lever arms extending on both sides of the associated wheel and pivoted at one end to the frame and rigidly interconnected at their opposite ends by a cross-member. The wheel is rotatably carried by the intermediate portions of the two arms. An elastic suspension member extends vertically between the frame and the cross-member. The main parts of the bogie are of welded box-like construction formed of metal plates. The wheels can be easily dismounted for repair or replacement.

Abstract: A supporting and guiding device for railway vehicles has at least four wheels 1, 2 mounted on a support intended to be fixed to the body 3 of a vehicle near one end thereof. The device includes a cross bar 8 maintained perpendicular to the vertical plane containing the longitudinal axis of the vehicle, and two longitudinal beams 5 which each carry at least two wheels. In use the beams extend longitudinally of the body on both sides of the vertical plane, and they are connected to each other by a rod 12 mounted on ball and socket joints 13.The longitudinal beams are hinged (9) to the common cross bar such that the wheels carried by the beams may become oriented in order to follow the curves of the track rails 6 and to be moved in order to pass over inequalities or unevennesses of said track.

Abstract: A rail-supported carriage, adapted to be moved along a pair of rails spaced from one another at a predetermined distance includes at least three wheel assemblies, each including a frame; at least one wheel assembly is adapted to travel on one rail, and the remaining wheel assemblies are adapted to travel on the oppositely disposed rail. A connecting mechanism connects oppositely disposed wheel assemblies, and includes a compensating arrangement mounted on each wheel assembly for compensating any variation of distance between oppositely disposed wheel assemblies due to any curvature in the rails, each compensating arrangement includes a platform and a pin passing through the platform, and wherein the platform is movable with respect to the frame.

Abstract: A railway-vehicle truck has a support structure in the form of a horizontal rectangular plate the opposite ends of which carry respective transverse tubular supports. Each tubular support mounts a shaft the two ends of which carry respective arms. Each arm rotatably mounts a railway wheel. Between each shaft and its corresponding tubular support are provided bushes of elastomeric material which permit misalignment of the shaft and support as the vehicle traverses a bend. The horizontal plate of the support structure is formed with a rectangular aperture mounting a sliding block for sliding movement transversely of the truck, though limited play is also provided for longitudinally of the truck. A truck pivot pin extends vertically down from the vehicle body through a central hole in the sliding block. Upper and lower plate elements are carried by the pivot pin and serve to sandwich upper and lower annular elements of elastomeric material between themselves and the facing surfaces of the support structure.

Abstract: There is provided an articulated four wheel truck for a railway freight car and the like, having independently rotatable wheels mounted at opposite ends of longitudinally spaced apart axle bolsters. A span bolster connects and mounts the axle bolsters for yawing movement about a vertical axis relative to the span bolster.

Abstract: A bogie having a bolster comprising a center pin support, and elongated support member mounted in center pin support, cam means on the center pin support to co-act with complementary cam means on a wagon to bias the support member to a position transverse to the rail track; two parallel side frames mounted on the respective ends of the support member and lying parallel to the rail track, four wheel supporting arms located one below each end of the side frames, two wheel arm supports one on either side of the support member on each of which is pivotally mounted two of said wheel supporting arms, two downwardly divergent pivotal connections respectively connecting each wheel arm support to the center pin support to bias the wheel supporting arms to a position parallel to the rail track, springs between overlying portions of the side frames and the wheel supporting arms and a wheel rotatably mounted on each wheel supporting arm.