Engine Room Bells

1 bell, if engines are stopped.....Ahead slow.

Jingle bell additional.....Full speed.

1 bell, if under full speed.....Slow down.

2 bells, if under full speed.....Stop.

2 bells, if engines are stopped.....Astern slow.

Jingle bell additional.....Astern full speed.

Whether going astern slow or at full speed, One Bell always stops the engines.

If, running under full speed, the engineer receives four quick bells it will be understood as a signal of emergency, and the engines will be at once reversed and sent full speed astern, without waiting for the jingle bell.

Ferry boats and tow boats often have a private code of engine-room signals, but the above is employed on all coasting and ocean steamers, not provided with a telegraph.