Timeline of United States inventions (1890–1945) installing driven conveyor belts that could produce a Model T in ninety-three minutes. 1901 Safety razor (disposable) A safety razor protects the skin from all but the edge of the blade while shaving skin. King Camp Gillette, a traveling hardware salesman of Fond du Lac, Wisconsin invented the double-edged, disposable safety razor attached to a re-usable razor handle. Beforehand, dull razors were taken to barbers for sharpening. With Gillette's double-edged and disposable blades, a uniform shave on a man's face could be achieved with a fresh blade and disposed after it was used. Gillette applied for a patent in 1901.
William Samuel Henson which is at right angles with the handle, and resembles somewhat the form of a common hoe." While a major improvement on the previous form of safety razor, an additional improvement was needed to make safety razors common. In 1901, Gillette combined Henson's T-shaped safety razor with disposable blades, and produced the modern razor. Henson published a pamphlet on astronomy in 1871 suggesting that the solar system formed from cold dust and gas, and discussed how it could condense into meteors and comets, and further condense into planets, moons and the sun, in the process heating up. He also discusses