1922 Pneumatic Cork Extractor

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.

Extracting a Cork by Air Pressure: The Hand Pump Forces Compressed Air into the Space between the Bottom of the Cork and the Contents of the Bottle

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.

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