Abstract: A corkscrew includes an elongate body, an auger pivotally mounted to the body, a first bearing arm pivotally mounted to the elongate body at a first distance from the auger, and a second bearing arm slidably mounted on the first bearing arm. The first and second bearing arms each have a shoulder, the shoulders being aligned adjacent one another. A connecting rod is pivotally mounted to the elongate body at a second distance which is greater than the first distance and pivotally engaged with the second bearing arm. During the extraction of a cork, the first bearing arm begins the extraction in engagement with the rim of the bottle neck. As the elongate body is tilted, the second bearing arm in turn engages with the rim of the bottle neck in order to take over from the first lever and fully extract the cork.

Abstract: A corkscrew includes an elongate body, an auger pivotally mounted to the body, a first bearing arm pivotally mounted to the elongate body at a first distance from the auger, and a second bearing arm slidably mounted on the first bearing arm. The first and second bearing arms each have a shoulder, the shoulders being aligned adjacent one another. A connecting rod is pivotally mounted to the elongate body at a second distance which is greater than the first distance and pivotally engaged with the second bearing arm. During the extraction of a cork, the first bearing arm begins the extraction in engagement with the rim of the bottle neck. As the elongate body is tilted, the second bearing arm in turn engages with the rim of the bottle neck in order to take over from the first lever and fully extract the cork.

Abstract: Reciprocating blade system for knives, employed in order to achieve a highly effective cutting action without dragging upon the object to be cut. The invention concerns a reciprocating blade system for knives characterized by a blade with curved or arc-shaped cutting edge capable of oscillating or swinging relative to the support whereto it is fixed by any means enabling said movement such that the cutting edge can operate a reciprocating rolling movement on the object to be cut when the handle is pushed backwards and forwards in the manner of a standard knife. In the embodiment represented in FIG. 1, the blade (1) has an arc-shaped cutting edge (5) and is fixed to a support rod (3) extended by a handle (4), through a pin (2) which enables its oscillation along the arrows (7) and (7bis).