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Granville Tailer Woods (April 23, 1856 – January 30, 1910) was an American inventor who held more than 50 patents in the United States. [1] He was the first African American mechanical and electrical engineer after the Civil War. [2]
This list of African-American inventors and scientists documents many of the African-Americans who have invented a multitude of items or made discoveries in the course of their lives. These have ranged from practical everyday devices to applications and scientific discoveries in diverse fields, including physics, biology, math, and medicine.
William B. Purvis (12 August 1838 – 10 August 1914) [1] was an African-American inventor and businessman who received multiple patents in the late 19th-century. His inventions included improvements on paper bags, an updated fountain pen design, improvement to the hand stamp, and a close-conduit electric railway system.
His invention of the triode is almost simultaneously created by the American Lee de Forest. Max Dieckmann and Gustav Glage use the Braun tube for playback of 20-line black-and-white images. The first jukebox with records comes on the market.
Otis Boykin was born on August 29, 1920, in Dallas, Texas. [2] [3] His father, Walter B. Boykin, was a carpenter, and later became a preacher.His mother, Sarah, was a maid, who died of heart failure when Otis was a year old.
Benjamin Boardley (March 1830 – 1904) was an American engineer and inventor. Benjamin's correct surname was Boardley, [ 1 ] [ 2 ] [ 3 ] but since 1859 when the African Repository published an article wrongly spelling Benjamin's surname as Bradley, authors have written about him with the incorrect surname.
In the U.S. Army, Jones took part in World War I in an all-black unit until his mechanical skills were spotted and he was promoted to sergeant working as an electrician and even teaching other soldiers. [7] Jones performed the wiring necessary to equip his camp with electricity, telegraph, and telephone services. [16]
The inventors are also credited with the first use of the word "transformer" to describe a device for altering the EMF of an electric current. [30] [32] A very first operative AC line was put into service in 1885 in via dei Cerchi, Rome, Italy, for public lighting. It was powered by two Siemens & Halske alternators rated 30 hp (22 kW), 2 kV at ...