Elijah McCoy

   So, you want the "real McCoy?" That means you want the "real thing," what you know to be of the highest quality, not an inferior imitation. The saying may refer to a famous African-American inventor named Elijah McCoy. He earned more than 50 patents, but the most famous one was for a metal or glass cup that fed oil to bearings through a smallbore tube. Machinists and engineers who wanted genuine McCoy lubricators may have originated the term, "the real McCoy."

Elijah McCoy was born in Colchester, Ontario, Canada, in 1843, the son of slaves who had fled Kentucky. Educated in Scotland, he returned to Detroit, Michigan to pursue a position in his field of mechanical engineering. The only job available to him was that of a locomotive fireman/oilman for the Michigan Central Railroad. Because of his training, he was able to identify and solve the problems of engine lubrication and overheating. Railroad and shipping lines began using Elijah McCoy’s new lubricators, and Michigan Central promoted him to an instructor in the use of his new inventions.

Later, Elijah McCoy moved to Detroit where he became a consultant to the railroad industry on patent matters. Unfortunately, success slipped away from McCoy, and he died in an infirmary after suffering financial, mental, and physical breakdown.

Elijah McCoy 1 #129,843 
2 #130,305 
3 #139,407 
4 #146,697 
5 #150,876 
6 #173,032 
7 #179,585 
8 #255,443 
9 #261,166 
10 #320,354 
11 #320,379 
12 #357,491 
13 #361,435 
14 #363,529 
15 #383,745 
16 #383,746 
17 #418,139

(co-inventor Clarence B.Hodges) 
18 #460,215 
19 #465,875 
20 #472,066 
21 #610,634 
22 #611,759 
23 #614,307 
24 #627,623
7/23/1872 
8/6/1872 
5/27/1873 
1/20/1874 
5/12/1874 
2/1/1876 
7/4/1876 
3/28/1882 
7/18/1882 
6/16/1885 
6/16/1885 
2/8/1887 
4/19/1887
5/24/1887 
5/29/1888 
5/29/1888
12/24/1889 
9/29/1891 
12/29/1891 
4/5/1892 
9/13/1898 
10/4/1898 
11/15/1898 
6/27/1899
1 automatic oil cup 
2 Improvement in lubricators for steam engines 
3 Improvement in lubricator 
4 Improvement in steam lubricators


5 Improvement in ironing tables 
6 Improvement in steam cylinder lubricator 
7 Improvement in steam cylinder lubricators 
8 Lubricator 
9 Lubricator 
10 Lubricator 
11 Steam dome for locomotives 
12 Lubricator 
13 Lubricator attachment 
14 Lubricator for slide valves


15 Lubricator 
16 Lubricator 
17 Lubricator 
18 Dope cup 
19 Lubricator 
20 Lubricator 
21 Lubricator 
22 Lubricator 
23 Oil cup 
24 Lubricator