Disclosed herein are an apparatus and method for measuring a railroad of a transfer vehicle to check the installation status of the railroad to ensure that the railroad of the transfer vehicle is installed in accordance with specifications. The apparatus may include a body formed in correspondence with a railroad of the transfer vehicle, a detector provided to the body and arranged in contact with the railroad, and a displacement measurer configured to measure a displacement of the detector in contact with the railroad.

A detection and indication system for use in a railway switch machine which utilizes one or more roller members which physically interact with a point detector bar coupled to one or more switch points to provide an indication of a point failure upon movement of the point detector bar a predetermined distance from an initial position. The system includes a mounting structure structured to be coupled to a housing of the switch machine and a first sensing device coupled to the mounting structure. The first sensing device is positioned and structured to detect movement of the point detector bar a second predetermined distance from the initial position, wherein the second predetermined distance is less than the first predetermined distance.

The present invention provides a measuring assembly (11) for measuring a characteristic of the movement of a first rail relative to a second rail. The measuring assembly comprises a measuring gauge (15) for measuring the characteristic and a rail movement detection device (13) to which the measuring gauge is removably secured. The detection device comprises a first subassembly (19) and a second subassembly (39) wherein the first subassembly and second subassembly are slidably interconnected. The first subassembly comprises a first rail engagement portion spaced from a first end (23) of the first subassembly. The second subassembly comprises a second rail engagement portion spaced from a first end (43) of the second subassembly. The measuring gauge is secured between the first end of the first subassembly and the first end of the second subassembly. Movement of the first rail engagement portion relative to the second rail engagement portion causes the first end of the first subassembly to move away from the first end of the second subassembly, the characteristic of the movement being measured by the measuring gauge.

A contact system employs a swing link (1) to drive set of movable contacts (5) to engage with a left or right set of contacts (24, 25) respectively on two sides thereof, so as to achieve indication of a separate or closure position. Particularly, a drive shaft (2) along with an operating plate (3) and a snap plate (4) on the drive shaft (2) are driven by the swing link (1) to change a motion trajectory of a roller (10) on a movable contact shaft (12), aided by action of a snap-action claw (11) and a tension spring (9), thereby achieving, quick action of set of movable contacts (5), and realizing a contact with or disconnection from set of fixed contacts (6) to achieve indication of the separation or in closure position. The system has a simple structure and a small size, responds quickly and accurately, and is cheap to manufacture, install, and maintain.

A contact system employs a swing link (1) to drive set of movable contacts (5) to engage with a left or right set of contacts (24, 25) respectively on two sides thereof, so as to achieve indication of a separate or closure position. Particularly, a drive shaft (2) along with an operating plate (3) and a snap plate (4) on the drive shaft (2) are driven by the swing link (1) to change a motion trajectory of a roller (10) on a movable contact shaft (12), aided by action of a snap-action claw (11) and a tension spring (9), thereby achieving, quick action of set of movable contacts (5), and realizing a contact with or disconnection from set of fixed contacts (6) to achieve indication of the separation or in closure position. The system has a simple structure and a small size, responds quickly and accurately, and is cheap to manufacture, install, and maintain.

A railway points arrangement 10 for a railway track junction comprises at least first and second pairs of longitudinally-extending, parallel-spaced static stock rails 12, 14, defining respectively a first route and a second route, and a pair of longitudinally-extending, parallel-spaced switch rails 16 which are movable between a first position in alignment with the first pair of stock rails 12 to select the first route and a second position in alignment with the second pair of stock rails 14 to select the second route. At least one of the movable switch rails 16a cooperates with at least one stock rail 12, 14 of each of the first and second pairs of stock rails 12, 14 when the movable switch rails 16 are in the first and second positions, and the at least one switch rail 16 and the at least one stock rail 12, 14 are shaped to define a mating profile 50 which aligns the switch rail 16 and stock rail 12, 14 and prevents transverse movement of the switch rail 16 relative to the stock rail 12, 14.

A railway points arrangement 10 for a railway track junction comprises at least first and second pairs of longitudinally-extending, parallel-spaced static stock rails 12, 14, defining respectively a first route and a second route, and a pair of longitudinally-extending, parallel-spaced switch rails 16 which are movable between a first position in alignment with the first pair of stock rails 12 to select the first route and a second position in alignment with the second pair of stock rails 14 to select the second route. At least one of the movable switch rails 16a cooperates with at least one stock rail 12, 14 of each of the first and second pairs of stock rails 12, 14 when the movable switch rails 16 are in the first and second positions, and the at least one switch rail 16 and the at least one stock rail 12, 14 are shaped to define a mating profile 50 which aligns the switch rail 16 and stock rail 12, 14 and prevents transverse movement of the switch rail 16 relative to the stock rail 12, 14.

A locking device on two bodies movable in a sliding manner relative to each other on a sliding track has a locking pin (7) which is guided in a straight-line mechanism in the guide body transversely with respect to the sliding track and is movable in the expelling direction. A socket spanner is guided in a sliding manner parallel to the sliding direction in the guide body. The locking pin (7) projects with an actuating end into a pocket of the socket spanner. The pocket has edges and surfaces for expelling and inserting the locking bolt and for blocking the straight-line mechanism. The locking device is suitable in particular for the connection and aligning movement of two guide bodies as occur in particular in a point operating mechanism.

A locking device on two bodies movable in a sliding manner relative to each other on a sliding track has a locking pin (7) which is guided in a straight-line mechanism in the guide body transversely with respect to the sliding track and is movable in the expelling direction. A socket spanner is guided in a sliding manner parallel to the sliding direction in the guide body. The locking pin (7) projects with an actuating end into a pocket of the socket spanner. The pocket has edges and surfaces for expelling and inserting the locking bolt and for blocking the straight-line mechanism. The locking device is suitable in particular for the connection and aligning movement of two guide bodies as occur in particular in a point operating mechanism.

A system includes control modules, a low-voltage communications bus, e.g., a CAN bus of a vehicle, a voltage sensor that measures a bus voltage and outputs 2.5-3.5 VDC high-data and 1.5-2.5 VDC low-data, and a host electronic control unit (ECU). The host ECU detects a recoverable fault using a data pattern in the bus voltage data when the data is outside of a calibrated range, and recalibrates the sensor. Recalibration may be by adjustment to a scaling factor and/or a bias value. Non-recoverable stuck-at-fault-type or out-of-range-type faults may be detected using the pattern, as may be a ground offset fault. A method includes measuring the bus voltage using the sensor, comparing the output data to a range to detect the fault, and isolating a sensor fault as a recoverable fault using the data pattern when the data is outside of the range. The sensor is then be recalibrated.