Although the system was successful, as demonstrated when it prevented a serious mishap in front of assembled witnesses, it was hardly fail-safe. Any rupture or disconnection in the air line left the train without brakes. Over the next two years, Westinghouse and his engineers addressed the problem by inverting the process, designing valves so that constant pressure in the lines kept the brakes disengaged. An air reservoir was also placed on each car. With the improved design, any interruption or break in the line automatically caused the train to stop.
Although the system was successful, as demonstrated when it prevented a serious mishap in front of assembled witnesses it was hardly fail-safe Any rupture or disconnection .in the air line left the train without brakes. O,ver the next two years Westinghouse and his engineers ad,dressed the problem by inverting the process, designing valves so that constant pressure in the lines kept the brakes disengaged. An air reservoir was also placed on each car. With the improved design, any interruption or break in the line automatically caused the train to stop.