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.
Rolls Razor Rolls Razor Rolls Razor Limited was a British company known first for its manufacture of a sophisticated safety-razor and later, under new ownership, an "affordable" twin-tub washing machine. The eponymous product was a sophisticated safety-razor which promoted with the slogan "The razor that is stropped and honed in its case". The case was a rigid rectangular frame enclosed by two detachable lids, one lid carried a stone and the other a leather. The lids could not be interchanged. With a lid removed, oscillating a handle drove a shaft along the frame. In both directions pinions on the shaft engaged with