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from New Jersey, was granted a patent on 1 April 1807 for an iron plow. Charles Newbold, a previous plow inventor, sued for patent infringement winning $1500 in damages. Even so, Peacock's plow was an improvement, for the moldboard, share and point were cast in three separate pieces. These parts were joined, with the point of the colter entering a notch in the breast of the share. Thus if the point broke by striking a rock or root, the point alone could be replaced on Peacock's plow. If the point broke on a Newbold plow, the entire cast unit had to be discarded.
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David Peacockunknown1800
 
1809unknown

Thomas Paine [2]1736, Jan 291761
 
18041809, Jun 8
 an English-American political activist, philosopher, political theorist and revolutionary. One of...
Jean-Pierre Blanchard1753, Jul 41784
 
18081809, Mar 7
 a French inventor, best known as a pioneer in balloon flight. Blanchard toured Europe, demonstrat...
Charles Newbold17801790
 
1809unknown
 an American blacksmith born in 1780 in Chesterfield Township, New Jersey. On June 26, 1797, Newbo...
Pellegrino Turriunknown1800
 
1809unknown
 an Italian inventor, invented a mechanical typing machine, one of the first typewriters at the st...
Philip Astley1742, Jan 81759
 
18141814, Jan 27
 an English equestrian, circus owner, and inventor, regarded as being the "father of the modern ci...
Robert Fulton1765, Nov 141793
 
18151815, Feb 24
 an American engineer and inventor who is widely credited with developing a commercially successfu...
Samuel Hopkins1743, Dec 91759
 
18191818
 an American inventor from Philadelphia, Pennsylvania. On July 31, 1790, he was granted the first ...
James S. McLeanunknown1790
 
1819unknown
 James Sylvanus McLean, a native of York, Pennsylvania, received a patent for an improvement in pi...
Rene Laennec1781, Feb 171804
 
18261826, Aug 13
 a French physician. He invented the stethoscope in 1816, while working at the Hôpital Necker, an...
Sir Humphry Davy1778, Dec 171795
 
18291829, May 29
 a Cornish chemist and inventor, who is best remembered today for his discoveries of several alkal...
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