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APPLIANCE PE VERIFICATION OF RAILROAD RAILROADS, APPLIANCE AND PROCESS OF LEVELING RAILROAD RAILROADS
APPLIANCE PE VERIFICATION OF RAILROAD RAILROADS, APPLIANCE AND PROCESS OF LEVELING RAILROAD RAILROADS
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机译:铁路铁路设备的PE验证,水平铁路设备的生产和过程
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摘要
A railway surveying apparatus is disclosed. The apparatus has a light beam transmitter for transmitting a beam along the track, a light beam receiver and an intermediate shadow board all mounted on respective rail-engaging buggies so that the transmitter, receiver and board are located on the center line of the track. The shadow board and receiver buggies are connected through a twist transducer that measures the relative angular positions of the buggies. A pendulum is mounted on the receiver buggy and serves to measure the actual rail cross level condition at that point. A pendulum on the transmitter buggy and appropriate circuitry can reference the apparatus to either the track center line or one of the rails.
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