Frank Julian Sprague (July 25, 1857 – October 25, 1934) was an American inventor who contributed to the development of the electric motor, electric railways...

both cars. The multiple unit traction control system was developed by Frank Sprague and first applied and tested on the South Side Elevated Railroad (now...

Edison's organization naval officer Frank J. Sprague, whom he met at an international electrical exposition. Sprague became a well known inventor, and was...

Robert C. Sprague (August 2, 1900 – September 27, 1991) was the son of Frank J. Sprague and Harriet Sprague. Sprague founded Sprague Electric (originally...

United States Sprague, Alabama in Montgomery County, Alabama Sprague, Connecticut Sprague, Missouri Sprague, Nebraska Sprague, Washington Sprague, West Virginia...

Franklin Sprague may refer to: Frank J. Sprague (1857–1934), American naval officer and inventor Franklin B. Sprague (1825–1895), American military officer...

system of current collection is reputed to be the 1880 invention of Frank J. Sprague, but the first working trolley pole was developed and demonstrated...

Edison, Hammer was "a pioneer of incandescent electric lighting". Frank J. Sprague, a competent mathematician and former naval officer, was recruited...

system on trams for collecting electricity from overhead wires by Frank J. Sprague. His spring-loaded trolley pole used a wheel to travel along the wire...

systems on trams for collecting electricity from overhead wires by Frank J. Sprague kickstarted the transition. His spring-loaded trolley pole used a wheel...

Spencer Microwave oven Frank J. Sprague 'Father' of electric traction Chauncey Starr Founder of Electric Power Research Institute J. J. Stiffler Key contributions...

1909, Image 9 (Chronicling America website accessed 12/22/2023] LeMaster, J.R.; Wilson, James D., eds. (2013). The Routledge Encyclopedia of Mark Twain...

Passenger Railway, a trolley system developed by electric power pioneer Frank J. Sprague. The system opened its first Richmond line in 1888, using an overhead...

the Richmond Union Passenger Railway, using equipment designed by Frank J. Sprague. The first use of electrification on a main line was on a four-mile...

work of Frank J. Sprague, who developed an improved method for mounting an electric traction motor and using a trolley pole for pickup. Sprague's work led...

Photograph taken by Frank J. Sprague at the wedding of Clemens and Ossip Gabrilowitsch. From left: Mark Twain, Jervis Langdon Jr., Clara Clemens , Ossip...

automatic pilot Lyman Spitzer (1914–1997), U.S. – Stellarator (physics) Frank J. Sprague (1857–1934), father of electric traction, electric elevator improvements...

the Richmond Union Passenger Railway, using equipment designed by Frank J. Sprague. The first use of electrification on a main line was on a four-mile...

lighting was often offset by the reduction in fire insurance premiums. Frank J. Sprague developed the first successful DC motor in 1886. By 1889 110 electric...

Senator Charles F. Sprague (1857–1902), Member of the U.S. House of Representatives from Massachusetts's 11th district Frank J. Sprague (1857-1934), Inventor...

the Richmond Union Passenger Railway, using equipment designed by Frank J. Sprague. The first electrically worked underground line was the City & South...

replaced by electric-powered streetcars following the invention by Frank J. Sprague of an overhead trolley system on streetcars for collecting electricity...

inventor Ernst Werner von Siemens in the late 1880s, American inventor Frank J. Sprague of Virginia had just patented his trolley pole system of current collection...

wheels to an electrical load. In 1886 the Sprague Electric Railway & Motor Company, founded by Frank J. Sprague, introduced two important inventions: a...

gradually in the 1890s after the introduction of a practical DC motor by Frank J. Sprague and accelerated after the AC motor was developed by Galileo Ferraris...

Forney, and Kees Schouhamer Immink. Source 1909: Elihu Thomson 1910: Frank J. Sprague 1911: George Westinghouse 1912: William Stanley, Jr. 1913: Charles...

physicist Hiram Sibley (1807–1888), Industrialist, philanthropist Frank J. Sprague (1857–1934), Electrical engineer, inventor John St. Cyr (1936–2022)...

This system, for rail traffic with a unipolar line, was invented by Frank J. Sprague in 1888. From 1889 it was used at the Richmond Union Passenger Railway...

been made possible by the invention of the trolley pole in 1880 by Frank J. Sprague, from his design for the Richmond Union Passenger Railway. The line...

reportedly reaching 65 mph. Fellow inventor Frank J. Sprague was studying similar ideas at the same time. Sprague improved the design and is sometimes credited...