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Frank Julian Sprague (July 25, 1857 – October 25, 1934) was an American inventor who contributed to the development of the electric motor, electric railways, and electric elevators.
The multiple unit traction control system was developed by Frank Sprague and first applied and tested on the South Side Elevated Railroad (now part of the Chicago 'L') in 1897. In 1895, derived from his company's invention and production of direct current elevator control systems, Frank Sprague invented a multiple unit controller for electric ...
The multiple unit traction control system was developed by Frank Sprague and first applied and tested on the South Side Elevated Railroad (now part of the Chicago 'L') in 1897. In 1895, derived from his company's invention and production of direct current elevator control systems, Frank Sprague invented a multiple unit controller for electric ...
Frank J. Sprague, a pioneer of electric traction in 1887. Railway electrification as a means of traction emerged at the end of the nineteenth century, although experiments in electric rail have been traced back to the mid-nineteenth century. [1]
In 1881, the first permanent railway electrification in the world was the Gross-Lichterfelde Tramway in Berlin, Germany. [10] Overhead line electrification was first applied successfully by Frank Sprague in Richmond, Virginia in 1887-1888, and led to the electrification of hundreds of additional street railway systems by the early 1890s.
However, these earlier attempts were not reliable enough to replace the existing animal-hauled street railways. The Richmond system was designed by Frank Julian Sprague. After trials in late 1887, it began regular operation on February 2, 1888, with 10 streetcars.
The Boston Elevated Railway (BERy) was a streetcar and rapid transit railroad operated on, above, and below, the streets of Boston, Massachusetts and surrounding communities. Founded in 1894, it eventually acquired the West End Street Railway via lease and merger to become the city's primary mass transit provider.
They saw the success of Frank Julian Sprague's Richmond Union Passenger Railway in Richmond, Virginia, and determined that an electric streetcar system running through their then-isolated portion of the city would be a good way to boost property values. In 1890, the San Francisco and San Mateo Railway Company was incorporated. [2]