What black American got a patent for the rotary engine in 1892?

Answer On July 5, 1892, African American inventor and former slave Andrew Jackson Beard was awarded a patent for the rotary engine. Beard is also known for patenting several plows and the Jenny Coupler, a... Read More »

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What black American got a patent for a fire extinguisher in 1872?

Thomas J. Martin, a black American from Dowagiac, Michigan, invented a method of constructing pipes and valves that would pump water from a reservoir directly to burning buildings, describing this ... Read More »

Which black American got a patent for the railroad electric switch in 1897?

W.B. Purvis, an African-American inventor, received a patent for the electronic railway switch on August 17, 1897. Purvis is also known for receiving a patent for the fountain pen, which stored ink... Read More »

Turbine Engine Vs. Rotary Engine?

Turbine (jet) and rotary (Wankel) are both internal combustion engines, but the similarity largely begins and ends there. Although turbine engines can and have been used to power automobiles, the f... Read More »

What is a rotary engine?

A rotary engine is a type of internal combustion engine that diverges from the typical piston/cylinder design found in most motor vehicles. It is sometimes referred to as a Wankel engine.HistoryThe... Read More »