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.
A gate valve is only used fully open or fully closed. It should not be used partially open as a throttling device, since the wedge will vibrate and quickly become damaged. Gate valve designs are determined by three features: the disc, the stem, and the bonnet/body connection.