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...

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

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

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...

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

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

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

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

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...

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

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

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...

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...

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...

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...

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

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...

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...

William Sprague IV (September 12, 1830 – September 11, 1915) was the 27th Governor of Rhode Island from 1860 to 1863, and U.S. Senator from 1863 to 1875...

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

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...

Railway began to operate trams in Richmond, Virginia, that Frank J. Sprague had built. Sprague later developed multiple unit control, first demonstrated...

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

Institute Awards. Franklin Institute. 15 January 2014. Retrieved 2016-01-30. "Frank Whittle". The Franklin Institute Awards. Franklin Institute. 15 January...

Johnson, a business associate of Edison, persuaded Frank J. Sprague to work for Edison. One of Sprague's significant contributions to the Edison Laboratory...

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

the Richmond Union Passenger Railway, using equipment designed by Frank J. Sprague. The first electrified Hungarian railway lines were opened in 1887...