air pipe

Hundreds of passengers were stranded on a broken-down train for more than five hours after a fractured air pipe caused its brakes to lock.

The air pipe to the triple valve here connects to the front pipe of the three beneath the triple valve, the middle pipe being that which is open to the atmosphere, which is the usual construction.

By carrying the hot air pipe through the partition midway between the floor and the ceiling it will stand at an angle of about 45°.

In which position of the hot air pipe will the room be most easily heated?

Each compartment has a hinged door or bottom C, which when dropped leaves an opening into the exhaust air pipe D. The hinged doors are dropped one at a time, and the openings are shown at G. The Fan is connected to the exhaust air pipe D, and is only running while the Trunk is being cleaned.