An underwater mobile observatory system comprising an aquarium able to hold water and large enough to support fish, coral, and to display artificial objects such as shipwrecks and ruins, a vehicle track extending through the aquarium the track generally being adjacent the bottom of the aquarium, the track having a portion which rises to a loading/unloading position, and a passenger vehicle coupled to the track for movement therealong and unable to leave the track such that changes in inclination of the track causes the vehicle to move up and down through water in the aquarium, the passenger vehicle having a main body portion to seat passengers and which is capable of being submerged, and a top portion which is open to the air, the spacing between the hack and the water level being controlled such that water does not pass over the top portion.

An underwater mobile observatory system comprising an aquarium able to hold water and large enough to support fish, coral, and to display artificial objects such as shipwrecks and ruins, a vehicle track extending through the aquarium the track generally being adjacent the bottom of the aquarium, the track having a portion which rises to a loading/unloading position, and a passenger vehicle coupled to the track for movement therealong and unable to leave the track such that changes in inclination of the track causes the vehicle to move up and down through water in the aquarium, the passenger vehicle having a main body portion to seat passengers and which is capable of being submerged, and a top portion which is open to the air, the spacing between the hack and the water level being controlled such that water does not pass over the top portion.

An on-track work or rescue vehicle for fire-fighting and/or the rescue of persons in tunnels or subway tubes has a drive which can be operated for at least a limited duration without ambient air. A liquid tank is arranged on the work or rescue vehicle. A fan blower with a fluid spraying device is connected to the liquid tank for producing a spray mist. The work or rescue vehicle is a traction vehicle for pulling or pushing other rail vehicles. A work or rescue vehicle of this type can move to a fire source under the protection of the spray mist blown into the tunnel or subway tube and, if required, pull or push a damaged rail vehicle from a danger zone.

An on-track work or rescue vehicle for fire-fighting and/or the rescue of persons in tunnels or subway tubes has a drive which can be operated for at least a limited duration without ambient air. A liquid tank is arranged on the work or rescue vehicle. A fan blower with a fluid spraying device is connected to the liquid tank for producing a spray mist. The work or rescue vehicle is a traction vehicle for pulling or pushing other rail vehicles. A work or rescue vehicle of this type can move to a fire source under the protection of the spray mist blown into the tunnel or subway tube and, if required, pull or push a damaged rail vehicle from a danger zone.

A device for the maintenance of an overhead line system of a track has a handling device and a displacement device. The displacement device serves to displace the handling device between a transport position and a working position. In the working position, the handling device reaches the overhead line system and is able to perform maintenance work by way of a tool. At least one sensor serves for controlling and/or monitoring the handling device. The device thus enables a simple, efficient and safe maintenance of the overhead line system.

A device for the maintenance of an overhead line system of a track has a handling device and a displacement device. The displacement device serves to displace the handling device between a transport position and a working position. In the working position, the handling device reaches the overhead line system and is able to perform maintenance work by way of a tool. At least one sensor serves for controlling and/or monitoring the handling device. The device thus enables a simple, efficient and safe maintenance of the overhead line system.

Systems and methods for a mobile crane are provided. In particular, systems and methods are provided for a mobile crane that is designed to enable easy transportation on a railcar to and from a job site. The mobile crane facilitates quick changing between a transport configuration and a work configuration to enable increased productivity. The mobile crane is configured to be modular and thereby be configured to include various lifting and object manipulating features, as required by a specific application.

Systems and methods for a mobile crane are provided. In particular, systems and methods are provided for a mobile crane that is designed to enable easy transportation on a railcar to and from a job site. The mobile crane facilitates quick changing between a transport configuration and a work configuration to enable increased productivity. The mobile crane is configured to be modular and thereby be configured to include various lifting and object manipulating features, as required by a specific application.

The present disclosure generally relates to a rail vehicle that includes a chassis and a rail clamp assembly coupled to the chassis. The rail clamp assembly includes a fixed central member and a pair of lugs each extending outwardly from opposing sides of the fixed central member. The rail clamp assembly further includes a pair of arms respectively coupled to the lugs to thereby provide respective pivot points to permit rotation of the arms about the pivot points. A pair of gripping tool assemblies are disposed at respective lower portions of the arms and are coupled to one another via a guide rod.

The present disclosure generally relates to a rail vehicle that includes a chassis and a rail clamp assembly coupled to the chassis. The rail clamp assembly includes a fixed central member and a pair of lugs each extending outwardly from opposing sides of the fixed central member. The rail clamp assembly further includes a pair of arms respectively coupled to the lugs to thereby provide respective pivot points to permit rotation of the arms about the pivot points. A pair of gripping tool assemblies are disposed at respective lower portions of the arms and are coupled to one another via a guide rod.