Abstract: System and methods are provided for warning a worker of a rail vehicle, or an operator of the rail vehicle of the worker. The system includes a worker device, a vehicle device, and a central server. The devices and server operate on one or a combination of actual or simulated satellite navigational signals, and beacon signals to determine the position of the devices, to generate a warning. The position determination may prioritize beacon signals over satellite navigation signals. The position determination may involve correcting a calculated position based on a measured power level of the beacon signal received from the beacon transmitter, an elapsed time since a previous beacon signal was last received by the device from the beacon transmitter, an elapsed time since a previous satellite navigation signal was received by the device, or an accuracy of the position of the device based on the satellite navigation signal.

Abstract: System and methods are provided for warning a worker of a rail vehicle, or an operator of the rail vehicle of the worker. The system includes a worker device, a vehicle device, and a central server. The devices and server operate on one or a combination of actual or simulated satellite navigational signals, and beacon signals to determine the position of the devices, to generate a warning. The position determination may prioritize beacon signals over satellite navigation signals. The position determination may involve correcting a calculated position based on a measured power level of the beacon signal received from the beacon transmitter, an elapsed time since a previous beacon signal was last received by the device from the beacon transmitter, an elapsed time since a previous satellite navigation signal was received by the device, or an accuracy of the position of the device based on the satellite navigation signal.

Abstract: System and methods are provided for warning a worker of a rail vehicle, or an operator of the rail vehicle of the worker. The system includes a worker device, a vehicle device, and a central server. The devices and server operate on one or a combination of actual or simulated satellite navigational signals, and beacon signals to determine the position of the devices, to generate a warning. The position determination may prioritize beacon signals over satellite navigation signals. The position determination may involve correcting a calculated position based on a measured power level of the beacon signal received from the beacon transmitter, an elapsed time since a previous beacon signal was last received by the device from the beacon transmitter, an elapsed time since a previous satellite navigation signal was received by the device, or an accuracy of the position of the device based on the satellite navigation signal.

Abstract: A tensioning mechanism for a band saw includes a tension spring assembly coupled with a sliding tension bracket which is adjustably coupled with an upper arm of the band saw. The sliding tension bracket engages an upper band wheel which couples with a band saw blade. A cam assembly is coupled with the tension spring assembly, the cam assembly imparts a rotational force which is translated into a linear tensioning force by the tension spring assembly upon the band saw blade. A cover assembly is selectively engaged with the cam assembly through use of a biasing assembly. The cover assembly includes an index indicator for identifying an index position and includes a handle which enables a user to selectively engage and rotate the cover assembly. The rotation of the handle in turn rotates the cam assembly applying the rotational force which is translated into the tensioning force.

Abstract: A sawing apparatus and a saw fence. The saw apparatus may include a work surface. The saw may include a rail system disposed along the edges of the work surface, for the attachment of accessories thereto. The saw may be provided with workpiece guide adapted to be attached to the rail system for guiding workpieces during the operation of the saw. The workpiece guide may also be provided with an infeed extension that rides on the rail system and is capable of supporting workpieces during the operation of the saw. The infeed extension may be adjustable relative to the work surface of the saw. The saw may further be provided with a debris collection system for the collection of debris produced by the cutting operations of the saw.

Abstract: A program feature set is compared to a processor feature set. The comparison may be performed in response to restoring the program onto a system or requesting its execution. The processor feature set represents zero, one or more optional hardware features supported by the processor, whereas the program feature set represents zero, one or more optional hardware features the program relies upon in its generated code. Comparison of the feature sets determines whether a particular program may run on a particular processor. Programs may be automatically or manually rebuilt to achieve full compatibility. If the comparison indicates that the program requires a feature not supported by the processor, the program is rebuilt based on the processor feature set. Alternatively, the program may be rebuilt in response to a rebuild request, rather than the comparison. The program is preferably rebuilt from an intermediate representation (IR) stored with or locatable from the program.

Abstract: A compiler (or interpreter) detects source language instructions performing arithmetic operations using a fixed point format (preferably packed decimal). Where the operation can be performed without loss of precision or violation of other constraints of the source language, the compiler automatically converts the operands to a floating point format (preferably Decimal Floating Point (DFP)) having hardware support, and re-converts results to the original fixed point format. Preferably, the compiler may combine multiple operations and instructions in an expression tree, analyze the tree, and selectively convert where possible. The compiler preferably performs a heuristic cost judgment in determining whether to use a particular conversion.

Abstract: A method for the continuous production of an elongated continuously extruded and in line polymer coated copper shape that comprises exposing an as extruded elongated copper shape to in line cooling with water covered by an inert gas before it reaches a polymer coating operation. Continuously extruded copper wire having an adherent in line applied polymer coating thereon is also described.

Abstract: A mini-communications center for paper and wired or wireless communications is mounted into or onto a wall. The center comprises a lockable box made out of wood, plastic or metal with a lid that can serve as a writing desk when folded out to a horizontal position supported by door stays.

Abstract: A sawing apparatus and a saw fence. The saw apparatus may include a work surface. The saw may include a rail system disposed along the edges of the work surface, for the attachment of accessories thereto. The saw may be provided with workpiece guide adapted to be attached to the rail system for guiding workpieces during the operation of the saw. The workpiece guide may also be provided with an infeed extension that rides on the rail system and is capable of supporting workpieces during the operation of the saw. The infeed extension may be adjustable relative to the work surface of the saw. The saw may further be provided with a debris collection system for the collection of debris produced by the cutting operations of the saw.

Abstract: A tensioning mechanism for a band saw comprises a tension spring assembly coupled with a sliding tension bracket which is adjustably coupled with an upper arm of the band saw. The sliding tension bracket engages an upper band wheel which couples with a band saw blade. A cam assembly is coupled with the tension spring assembly, the cam assembly imparts a rotational force which is translated into a linear tensioning force by the tension spring assembly upon the band saw blade. A cover assembly is selectively engaged with the cam assembly through use of a biasing assembly. The cover assembly includes an index indicator for identifying an index position, corresponding with the width of the band saw blade, of the cover assembly relative to the cam assembly. The cover assembly includes a handle which enables a user to selectively engage and rotate the cover assembly. The rotation of the handle in turn rotates the cam assembly applying the rotational force which is translated into the tensioning force.