Camp Hill, PENNSYLVANIA, United States
Camp Hill, PENNSYLVANIA, United States

Harsco Corporation is a diversified, worldwide industrial company based in the United States. Harsco operates in 35 countries and employs approximately 12,300 people worldwide. The company provides industrial services and engineered products that serve some of the world’s largest and most essential industries, including steel, railways, and energy. The 2013 revenues totaled $2.8 billion, 60% of which were generated internationally. Harsco is headquartered in Camp Hill, a suburb of Harrisburg, Pennsylvania. Wikipedia.

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Patent
Harsco | Date: 2017-08-09

The present disclosure teaches inter-vehicle communications for avoiding rear collision of rail vehicles on a railroad. For example, a collision avoidance system may comprise an end-of-train device and a V-aware unit located on different vehicles. The two devices may be configured to wirelessly communicate with each other, and then detect each others presence by estimating a distance between them. Warnings may be issued to respective operators against a collision hazard when the distance drops to or below a pre-determined threshold.


Patent
Harsco | Date: 2017-08-09

The present disclosure generally relates to work block encroachment warning systems for providing protection for rail workers working in a mobile or fixed work block. For example, a vehicle (V)-aware unit installed on a moving rail vehicle and a work block limit encroachment unit mounted on a railroad may wirelessly communicate with each other to determine a distance between them. When a vehicle is moving toward an occupied work block, the distance may be used to identify potential hazards.


Patent
Harsco | Date: 2017-08-09

The present disclosure generally relates to shunt devices for providing multi-fold protection for track workers. For example, a failsafe shunt device may have a pair of end components magnetically couple to two running rails and a central unit connected to the pair of end components via electrical wires. The failsafe shunt device may communicate with an operations control center (OCC) to indicate a presence of the shunt device. Related methods of using disclosed shunt devices and associated systems are also described.


Patent
Harsco | Date: 2016-09-26

The present disclosure generally relates to a railroad chassis vehicle having independently operable workheads for carrying out rail maintenance operations on non-uniform sections of railroad tracks. Related methods of operation of the railroad chassis and associated maintenance of ballast beds underlying railroad tracks are also described.


Patent
Harsco | Date: 2016-09-26

The present disclosure generally relates to an improved tamping operation where a rail tamping machine advances at different speeds during different stages of tamping and workhead assembly operation. The workhead assembly is also capable of moving longitudinally relative to the rail tamping machine frame when it is detected that the rail tamping machine is at an appropriate distance from a reference point. Related methods of tamping are also described.


Patent
Harsco | Date: 2016-09-26

The present disclosure generally relates to a rail vehicle having a frame and a carriage assembly coupled to the frame. The carriage assembly includes at least one workhead coupled thereto. The workhead includes a jaw member that is operable to engage and remove rail spikes during rail maintenance operations. Further, the carriage assembly and workhead are operable to move longitudinally along the frame and relative to the frame.


Patent
Harsco | Date: 2016-10-05

A light reference system includes a first, second and third rail followers. The second rail follower is disposed between the first and third rail followers. First and second light sources are disposed on the first and third rail followers and operable to emit light towards the second rail follower. First and Second imaging devices are disposed on the second rail follower. The first imaging device is operable to receive the light emitted by the first light source and provide first image data. The second imaging device is operable to receive the light emitted by the second light source and provide second image data. A processing device is configured to perform a measurement, based on the first and second image data, indicating a relative position of the second rail follower with respect to at least one of the first and third rail followers.


Patent
Harsco | Date: 2017-05-03

A system for performing track maintenance operations is described. The system includes a lead vehicle for identifying sections of rail that have been pre-marked for track maintenance operations. The lead vehicle further includes a control system for receiving and transmitting coordinates of the pre-marked track sections. The system further includes at least one drone vehicle for receiving the coordinates from the control system and the drone vehicle has at least one workhead for performing track maintenance operations on the pre-marked track sections.


Patent
Harsco | Date: 2016-06-24

The present disclosure generally relates to a workhead assembly for use in rail applications and associated methods of use. The workhead assembly may comprise a frame and two pairs of workheads, wherein each pair of workheads is disposed on opposing sides of the frame and carries tamping tools. The workhead assembly may further include two vertically-oriented actuators being disposed on opposing sides of the frame. Two pairs of linkage arms are coupled between the vertically-oriented actuator and a pair of tamping arms. Each pair of linkage arms are disposed on opposing sides of the frame. Actuation of the linkage arms imparts movement to the tamping tools.


Patent
Harsco | Date: 2016-07-15

The present disclosure generally relates to a rail warning system using wireless portable transmitters/receivers. The rail warning system uses a chirp spread spectrum modulation scheme, and alerts personnel in work zones on or near train tracks as well as optionally, on track equipment and train operators, of approaching trains or on track equipment. Portable wayside devices may also be positioned on the rail web, optionally magnetically, to alert work personnel, allowing for secure placement but also portability to other locations on the same track or adjacent tracks.

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