jack screws
Mechanical lifting devices
Jack screws are mechanical devices that use a threaded shaft to lift or position heavy loads with precision.
A screw mechanism translates rotational force into vertical movement, allowing one person to raise substantial weight incrementally: The stage crew used jack screws to level the platform.
They appear in construction, theater rigging, and machinery alignment.
Also written as one word: jackscrew.
- jackstandFixed vehicle support device
- liftingRaising something heavy
- raisingLifting or nurturing
- levelingMaking flat or equal
- stabilizingMaking firm or constant
structural support · supporting · load bearing · worm gear · bridge construction · mechanical advantage · adjusting · aligning · aircraft maintenance · collar · spindle · nut · actuator · wrench · cast iron · stainless steel · elevations · torque wrench
jack screwshydraulic lifts
Devices raising loads via fluid pressure
hydraulic cylinders · hydraulic rams · bottle jacks · hydraulic presses · scissor lifts