Abstract: An electrohydraulic steering system includes a steering unit, triggerable via a user control element, for supplying a steering motor with pressure fluid. As a function of the actuation of the user control element or as a function of an external signal, the steering motor can be supplied with an additional quantity of pressure fluid via a steering valve. A blocking valve is located in the flow path of the additional pressure fluid and can be put in a blocking position in order to block the flow path of the additional pressure fluid to the steering motor.

Abstract: A portable corkscrew has a body provided with an axial stepped hole where a plunger assembly has been housed and provided with a housing in which a cap appears which, at its lower end, supports a helicoidal rod, while at its upper face it leans against a spherical surface housed in a hole formed in a piece internal to the plunger and provided with a transverse hole to which a manually actuable external lever has been articulated by a pin, the plunger being further provided with two lateral holding elements which at its upper side end are pivotally articulated by means of respective axles against the action of associated springs while the lower ends of these holding elements have been shaped as hooks with their spikes being outwardly directed, this assembly being capable of longitudinal displacement when the mentioned external lever is manually operated.