Spencer Pulley Spencer Pulley Spencer Kyle Pulley (born April 3, 1993) is an American football center for the New York Giants of the National Football League (NFL). He played college football at Vanderbilt. He was signed by the San Diego Chargers as an undrafted free agent in 2016. Pulley attended Evangelical Christian School in Cordova, Tennessee. While there, he was a three-year starter at offensive tackle and defensive end on the football team as well as lettering three times in shot put and discus throw in track & field. As a defensive end he recorded 29 tackles and 11 quarterback sacks. As
Electro-pneumatic brake system on British railway trains thereby activating the disc brake. The "presence" of the voltage holds the brakes "off", providing a Fail Safe system. The 3 step "Westcode" brake uses three wires and these operate in a binary sequence to control the brake step. 10 & 11 are the brake coding to provide the 3 steps, 12 wire is emergency brake, 15 wire is EP brake negative. Positions on the brake handle are: This system remains in use today. On the previous EP brake systems, if the train divided or a serious air leak occurred the drop in Brake Pipe pressure automatically caused the brakes