Andrew Jackson Beard is a succesful black inventor in the railroad industry its rapid expansion throughout the country caused an alarming number of railmen suffered serious injuries. These injuries were found on the rail men arms and legs, the causes of these injuries came from rail road cars. During manual coupling of worker would have to attempt to precisely time the moment when two railroad cars being pushed together would be close enough for that worker to drop a metal pin between their connectors, thus engaging the cars. If the worker was off by one second he might be severely damage on his arms or legs.November 27, 1897 Beard received a patent for a device he called the Jenny Coupler.
The Jenny Coupler automatically joined cars by simply allowing them to bump into each other, or as Beard described it the "horizontal jaws engage each other to connect the cars." Beard sold the rights to his invention for $50,000 and the railroad industry was revolutionized.
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