Henry Bessemer was an inventor and engineer from England. Not only  did he develop the Bessemer process for steel manufacturing, but he  also designed a machine that could mâ¦ake bronze powder.
The head-tilt/chin-lift is the primary maneuver used in any patient in whom cervical spine injury is not a concern. The simplest way of ensuring an open airway in an unconscious patient is to use a head-tilt/chin-lift technique, thereby lifting the tongue from the back of the throat.
Upright at 90 degrees is full or high Fowler's position. Other Fowler's positions are tilted back. In medicine, Fowler's position is a standard patient position in which the patient is seated in a semi-upright sitting position (45-60 degrees) and may have knees either bent or straight [citation needed]. It is an intervention used to promote oxygenation via maximum chest expansion and is implemented during events of respiratory distress.