Jack screw


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Related to Jack screw: Jack post, Lead screw

Jack screw

A Jack (number 3) with a heavy cast iron base and a large screw that can be turned to raise or lower a load.
References in periodicals archive ?
This modified screw is called a jack screw. It's a good idea to mount these jack screws directly to the mold.
Examination revealed the flap actuator jack screw position was consistent with a flaps-retracted setting.
Then, with the hopper tilted back by an electric jack screw, maintenance personnel can reach all areas of the cutting chamber.
The unit does not require a jack screw to adjust tool pressure.
Using a manual jack screw, the support boom and conveyor can be raised for discharging into vessels or other process equipment.