From a 1922 issue of Popular Mechanics
PNEUMATIC CORK EXTRACTOR ACTS WITH AIR PRESSURE
Quite a novel method of extracting a cork from a bottle is to blow it out with air pressure.
A bowed thin hollow air conductor is inserted between the cork and the neck of the bottle.
Outside the bottle this is bent at right angles and leads to a small pipe, to which is connected an air pump that forces air into the space between into its contents and the bottom of the cork. The device is of German Origin.