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Lewis Howard Latimer (September 4, 1848 – December 11, 1928) was an American inventor and patent draftsman. His inventions included an evaporative air conditioner, an improved process for manufacturing carbon filaments for electric light bulbs, and an improved toilet system for railroad cars.
Worked as a draftsman for both Alexander Graham Bell and Thomas Edison; invented the more durable filament, which made the incandescent light bulb last long enough to be useful; became a member of Edison's Pioneers and served as an expert witness in many light bulb litigation lawsuits; said to have invented the water closet. [125] [126] [127] [128]
Matthew Evans is one of two Canadians who developed and patented an incandescent light bulb, on July 24, 1874, five years before Thomas Alva Edison's U.S. patent on the device. Evans, from Toronto, Ontario, and his friend Henry Woodward, made the light bulb by sending electricity through a filament made of carbon. Evans was a hotelier.
His light bulbs are on display in the museum of the Château de Blois. [a] In 1859, Moses G. Farmer built an electric incandescent light bulb using a platinum filament. [24] Thomas Edison later saw one of these bulbs in a shop in Boston, and asked Farmer for advice on the electric light business. Alexander Lodygin on 1951 Soviet postal stamp
Filament for electric light bulb [292] 2006 Lewis Miller: 1829 Combine harvester [293] 2006 Lewis Waterman: 1837 Fountain pen [294] 2006 Linus Yale Jr. 1821 Cylinder lock [295] 2006 Louis Renault: 1877 Drum brake [296] 2006 Margaret E. Knight: 1838 Paper bag machine [297] 2006 Martha Coston: 1826 Signal flare used for ships [298] 2006 Mary ...
Sushruta (600 BC), Vedic India – inventor of Plastic Surgery, Cataract Surgery, Rhinoplasty; Theodor Svedberg (1884–1971), Sweden – Analytical ultracentrifuge; Joseph Swan (1828–1914), UK – Incandescent light bulb; Robert Swanson (1905–1994), Canada – invented and developed the first multi-chime air horn for use with diesel ...
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Henry Woodward was a Canadian inventor and a major pioneer in the development of the incandescent lamp. [1] He was born in 1832. On July 24, 1874, Woodward and his partner, Mathew Evans, a hotel keeper, filed a Canadian patent application on an electric light bulb. [2] [3] It was granted on August 3, 1874, as Canadian patent number 3,738. [4]