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Individual
Publication date
Priority to DEU12541DpriorityCriticalpatent/DE630407C/en
Application grantedgrantedCritical
Publication of DE630407CpublicationCriticalpatent/DE630407C/en
B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
B66F3/25—Constructional features
B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
Description
Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings
Claims (1)
Patentanspruch :Claim:Hydraulischer .Wagenheber, bei dem der Pumpenkolben als Steuerschieber für
den vom Ölbehälter zum Pumpenzylinder führenden Durchlaß dient, dadurch gekennzeichnet,
daß in dem starr mit seiner Stange verbundenen Kolben ein von der Druckfläche zur Mantelfläche führender,
beim Pumpen durch die Zylinderwand verschlossener, beim Entleeren des Arbeitszylinders
als Verlängerung des vom Ölbehälter zum Pumpenraum führenden Kanals (12) dienender Kanal (6) vorgesehen
ist.Hydraulic car jack in which the pump piston acts as a control slide for
serves the passage leading from the oil tank to the pump cylinder, characterized in that
that in the piston, which is rigidly connected to its rod, a leading from the pressure surface to the jacket surface,
closed when pumping through the cylinder wall, when emptying the working cylinder
provided as an extension of the channel (12) leading from the oil tank to the pump chamber (6)
is.
Aqueous humor and sludge lifter, the conveying tank of which is brought into connection alternately with the suction and pressure lines of a compressor by means of a relay control moved by floats