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Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.
Founded in 1923, [4] [5] Ethyl Corp was formed by General Motors and Standard Oil of New Jersey ().General Motors had the "use patent" for tetraethyllead (TEL) as an antiknock fuel additive, based on the work of Thomas Midgley Jr., Charles Kettering, and later Charles Allen Thomas, [6]: 340–41 and Esso had the patent for the manufacture of TEL.
[3] [4] TEL was first synthesised by German chemist Carl Jacob Löwig in 1853. American chemical engineer Thomas Midgley Jr. , who was working for the U.S. corporation General Motors , was the first to discover its effectiveness as an antiknock agent in 1921, after spending several years attempting to find an additive that was both highly ...
Midgley went as far as pouring Ethyl over his hands and inhaling it during that 1924 news conference in an attempt to quench fears. But in reality, he was also getting poisoned.
Its purpose was to permit high levels of boost pressure in multiple-stage turbochargers, and thus high power at high altitudes, without causing detonation that would destroy the engine. The high pressures brought high temperatures of inlet air, making engines prone to knock. This use and storage stabilization methods were important military ...
The team was headed by Thomas Midgley Jr. [4] In 1928, they improved the synthesis of CFCs and demonstrated their usefulness for such a purpose and their stability and nontoxicity. Kettering patented a refrigerating apparatus to use the gas; this was issued to Frigidaire, a wholly owned subsidiary of General Motors. [5]
Thomas Midgley, 76, of Watson Street, Wilkes-Barre Township, was sentenced by Lupas to four-to-23 months at the county correctional facility on six counts of child pornography. Midgley pled guilty ...
After a year marked by police killings of Black men and women and mass civil unrest over racial injustice, some activists are taking aim at police tactics that can lead to deadly middle-of-the ...