When cruising along the surface "awash," it is propelled like a motorboat, the power being provided by a gasoline engine; but when it dives or submerges it is operated underwater by electric motors, and the steering, pumping, handling, loading and firing of the torpedoes is done pneumatically and electrically.
"Kelly Miller's History of the World War for Human Rights"
Kelly Miller
A brilliance a hundred times brighter than the glaring Nevada sun lit the dim interior of the bunker and the pneumatically-operated door slammed shut just before the wave of the blast hit the structure.
"A Filbert Is a Nut"
Rick Raphael
When you pneumatically create void in a tube, the objects you throw down it, either lead or feathers, fall with the same rapidity.
"The Moon-Voyage"
Jules Verne