Automatic Train Control Bulletin No. 8: Description of Continuous Inductive Train Control Systems of the Union Switch and Signal Company

Lightly rubbed. 1931 Trade Paperback. 218 pp. Original wrappers. In-depth description of the devices used by the Union Switch & Signal Company, part of a series released by the American Railway Association. Includes photographs, diagrams, and detailed charts regarding locomotives, gasoline electric motor cars, engine circuits, related apparatus, and signals, with descriptions of over a dozen railroad routes throughout the United States.