| 摘要 |
1. Hydraulic jack consisting of a supporting frame with support rails, where in the upper corner of the structure of the supporting frame, on the side of the support rail, mounted rotationally, is an axle, at whose ends are lever arms terminated with fastening clamps and connected to each other by a crossbar, while in the foundation structure of the supporting frame is fastened a clamp in which, mounted rotationally by means of a pin joint, is the cylinder of a hydraulic servomotor, and to the crossbar of the lever arms is fastened a clamp in which, mounted rotationally with a pin joint is the piston-rod of the hydraulic servomotor, and at the ends of the crossbar of the lever arms are fastened clamps in which, mounted rotationally, is a runner according to patent No.142171, characterized in that inside the vertical planes passing through the lever arms (5), symmetrically with respect to the lengthwise axis of the foundation structure of the supporting frame (1) and the crossbar (8) installed between the support rails (2), are welded at least two pairs of clamps (9), in which, mounted rotationally in a vertical plane by means of pin joints (10), are at least two cylinders of hydraulic servomotors (11), while in the side parts of the crossbar (7), symmetrically with respect to the axis of symmetry of the lever arms (5), inside the lever arms, are welded, accordingly, at least two pairs of clamps (13), in which, mounted rotationally by means of pin joints (14), are the piston-rods of at least two hydraulic servomotors (11) [...]<IMAGE>
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