Hydraulic jack

Details Hydraulic jack Hydraulic jack

B - Operations, Transporting

66

F

254/153

B66F 3/24 (2006.01)

Patent

CA 1104551

HYDRAULIC JACK ABSTRACT OF THE DISCLOSURE A hydraulic jack includes a fixed, cylindrical member mounted on a base, and moveable member mounted exteriorly around and shiftable on the fixed member. The interior of the fixed and moveable members defines an expandable and contractable chamber, which, when expanded with hydraulic liquid extends the jack upwardly. The space between the exterior surface of the fixed member and the interior surface of the moveable member defines a second expandable and contractable chamber, which, when expanded with hydraulic liquid retracts the jack downwardly. Adjustable lift elements are mounted on the moveable member and are adapted to engage a device to be elevated.

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