As a child, I used to love watching Shirley Temple's movies and I was drawn to reading her autobiography, Child Star. This was one of the best Hollywood autobiographies I have ever read because of the way Shirley gave a complete overview of her life.
Definition of engineer's brake valve. : a valve in the cab of a locomotive for operating the air brake.
The Check Valve: The check valve is designed to prevent backflow. Fluid flow in the desired direction opens the valve, while backflow forces the valve closed. The Pressure Relief Valve: The pressure relief valve is designed to provide protection from over-pressure in steam, gas, air and liquid lines.