ππππ₯πππ¦ π¦. πππͺππ¦ πππππ₯ (1859–1926)
ππππ₯πππ¦ π¦. πππͺππ¦ πππππ₯ (1859–1926) An African American inventor, who patented the friction heater. Baker was born into slavery on August 3, 1859, in Savannah, Missouri. His mother, Betsy Mackay, died when he was three months old, leaving him to be brought up by the wife of his owner, Sallie Mackay, and his father, Abraham Baker. He was the youngest of five children, Susie, Peter, Annie, and Ellen, all of whom were freed after the Civil War. Baker later received an education at Franklin College. His father was employed as an express agent, and once Baker turned fifteen, he became his assistant. Baker worked with wagons and linchpins, which sparked an interest in mechanical sciences. friction heater friction heater Baker worked over the span of decades on his product, attempting several different forms of friction, including rubbing two bricks together mechanically, as well as using various types of metals. After twenty-three years, the invention was perfected in t...