A system is provided for aligning a railroad signal. The system includes at least one tilt device and at least one directional device to measure the respective tilt and direction of the railroad signal, and at least one controller coupled to the tilt device and the directional device. The controller...http://www.google.com/patents/US7908114?utm_source=gb-gplus-sharePatent US7908114 - System and method for aligning a railroad signaling system
