Abstract:
A system (5) for operating a gate arm of a railroad crossing gate (15) is provided. The system (5) includes a lever (35), a spring (40) attached to an extendable gate arm (10), a cable mechanism (45) including a cable (50) and a crossing mechanism (55). The lever (35) is movably coupled to the cable (50) and the spring (40) is coupled to the cable (50). The lever (35) is coupled to the crossing mechanism (55) and the cable (50) is coupled to the crossing mechanism (55). The cable mechanism (45) is configured to extend and retract the extendable gate arm (10) and the lever (35) is configured to enable the spring (40) to pull the extendable arm (10) out from a retracted position.
Abstract:
A railroad crossing indication device (250) includes a processing unit (350) for receiving and processing data provided by a constant warning time device (40) in communication with a railroad track (20), wherein the data relate to a train approaching the railroad crossing, and a screen unit (300, 400, 500) for displaying information of the train approaching the railroad crossing based upon the data provided by the constant warning time device (40). Furthermore, a railroad crossing indication system (200) and a method (600) for displaying information at railroad crossings are disclosed.
Abstract:
A monitoring system (10) for a wayside signaling device includes a light emitting diode (LED) circuit (100) with an LED array (122), a LED driver unit (120) for driving the LED array (122), and a mechanism (130) for connecting and disconnecting the LED circuit (100), and an optical light sensing circuit (200) with a light-controlled variable resistor (202) operably coupled to a resistor driver unit (204) including relay functionality (205). The LED circuit (100) and the sensing circuit (200) are arranged such that the light-controlled variable resistor (202) monitors an output of the LED array (122), and that the relay functionality (205) triggers the mechanism (130) to connect or disconnect the LED circuit (100) based on the output of the LED array (122).
Abstract:
A thermal energy removal system is provided to cool a rail of a railway track in a self-powered mode and/or an externally-powered mode. The system comprises a cooling module configured to mount on a side of the rail to remove heat stored inside the rail. The cooling module includes a solid state electrical insulation sandwiched between a plate and a heat sink. The cooling module further includes a first terminal and a second terminal. The first and second terminals to provide an electric energy source based on the heat extracted and harnessed for powering at least one of an electronic circuit, a light source, and a communication device associated with railways infrastructure.