hydraulic jack


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hydraulic jack

[hī′drȯ·lik ′jak]
(mechanical engineering)
A jack in which force is applied through the mechanism of a hydraulic press.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

hydraulic jack

hydraulic jack
A jack operated by means of a liquid, usually oil, acting against a piston; a small force, applied by means of a lever attached to a small piston, produces a very large force on a large piston.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
The offenders are thought to have used hydraulic jacks to prise open the steel doors of clothing banks in car parks outside shops at Cramlington and Blyth, before emptying them of their contents.
Repair or replace posts or footings by raising the beam with a hydraulic jack and 4x4 post, then shoring it with adjustable steel posts (Photos 4 and 5).
The Model 1000 Rev has a tool head which rotates 90 [degrees] into a horizontal position and a hydraulic jack ejects the die set.
Found inside the tunnel, just beneath the pawnshop, were a steel saw, a hydraulic jack, acetylene, a crow bar and assorted tools.
Standard features include two 1,000 gph bilge pumps, livewell and release well, tilt hydraulic steering with Edson wheel, hydraulic jack plate, and 82-pound thrust Motor-Guide trolling motor.
Our unit's motorpool has a 10-ton hydraulic jack that's used to lift HMMWVs, 2 1/2- and 5-ton trucks.