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Elijah McCoy (1844-1929)
Automatic Oil Cup
Frequently, if people want to make sure to get "the real thing" -- a quality
product or service -- they ask for "the real McCoy." It's not certain where this
phrase comes from, but many believe it started with Elijah McCoy, one of the
most prolific inventors in American history.
In his lifetime, McCoy patented more than 50 inventions, none more famous than
his automatic oil cup, which eventually became standard equipment on most
locomotives and heavy machinery.
McCoy was born in Colchester, Ontario in 1843 to American parents who had traveled on the Underground Railroad in order to escape slavery in Kentuky. Early in life, Elijah McCoy showed an aptitude and interest in the way
mechanical devices worked. McCoy's parents saw that their son had a special
talent and sent him to study in Scotland, where he achieved the title of "master
mechanic and engineer." McCoy then went to America to look for a job as an
engineer, but in the 1860s, professional jobs were usually not available to
African-Americans. McCoy settled for a job as a fireman/oilman for the Michigan
His job was to walk the length of the train, oiling its axles,
bearings and other moving parts regularly. McCoy quickly realized that his job could be done
more efficiently, so he developed a lubricating cup that would automatically
drip oil onto moving parts.
McCoy got his first patent for the device, which enabled trains to travel
continuously without having to stop for oiling.
There were many imitations of McCoy's oil cup, but engineers knew that the model
based on McCoy's design was the best of its kind. So knowledgeable engineers
began asking for McCoy's invention by name.