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Priority to ES1969154302UpriorityCriticalpatent/ES154302Y/en
Publication of ES154302UpublicationCriticalpatent/ES154302U/en
Application grantedgrantedCritical
Publication of ES154302YpublicationCriticalpatent/ES154302Y/en
Improved hydraulic jack characterized by comprising a base plate on which a body is disposed in, inside which a piston is provided driven by a lever or pedal provided with a heel and mounted on the base, introducing said plunger, in its reciprocating movement, pressurized liquid in the chamber located under the lifting plunger, all through the two intake and exhaust valves, having been provided, a manual external control valve that puts in communication the oil tank with the pressure chamber so that opening it lowers the lifting plunger. (Machine-translation by Google Translate, not legally binding)