Early Modern Corkscrew (May, 1939)
Corkscrew Puts Leverage on Stubborn Stoppers
Even the most stubborn cork is said to be tamed by the powerful leverage of a new corkscrew. Inserting the screw in the cork, by turning a winged key, raises a pair of geared arms to a horizontal position. Push the arms down again, and out comes the cork, under pressure applied through a flange that fits over the neck of the bottle. The two operations are shown in the pictures below.