How to customize the Lock screen on iPhone and iPad. 1  How to change the wallpaper on your Lock screen. 2  How to set Auto-Lock time. 3  How to turn off Raise to Wake. 4  How to turn off notifications on the Lock screen. 5  How to turn off Today View on the Lock screen. 6  How to turn off Notification View on the Lock screen.
- 1 - The Bessemer process was the first inexpensive industrial process for the mass-production of steel from molten pig iron. The process is named after its inventor, Henry Bessemer, who took out a patent on the process in 1855.
He was knighted in 1879. 1  Bessemer was the son of an engineer and typefounder. 2  He developed other inventions, notably sugarcane-crushing machinery of advanced design, but he was soon devoted to metallurgy. 3  During the Crimean War, Bessemer invented an elongated artillery shell that was rotated by the powder gases.