Assisted Pull Corkscrews

Considering the resilience of corks and the effectiveness of modern techniques for inserting them, it is not surprising that extracting a cork using a straight pull method can take a force of up to several hundred pounds. The corkscrews in this section are "straight pulls" with a twist - or, more accurately, with some addition to the shank that stops the downward movement of the worm and shifts the worm to be a gripping/holding device. Continued turning breaks the adhesion of cork to bottleneck, and, in certain cases, starts the upward movement of the cork.

There is the Henshall Button from England...

and various Caps and Collars from the United States...

and the ingenious Spring Loaded Corkscrews from Germany.