jackscrew


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jackscrew:

see screwscrew,
simple machine consisting essentially of a solid cylinder, usually of metal, around which an inclined plane winds spirally, either clockwise or counterclockwise. It is used to fasten one object to another, to lift a heavy object, or to move an object by a precise amount.
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jackscrew

[′jak‚skrü]
(mechanical engineering)
A jack operated by a screw mechanism. Also known as screw jack.
The screw of such a jack.

jackscrew

A jack in which a screw is used for lifting; carries a plate which bears on the load.

jackscrew

jackscrew
A jack operated by a screw mechanism. Normally, it is used for raising light aircraft and lighter loads. Also known as a screw jack.
References in periodicals archive ?
Another potential trouble spot is the pair of jackscrews used to trim the horizontal stab.
Miniature satellites often rely on jackscrews to ensure the connection survives harsh operating conditions and save space.
The clamp should then be located directly over the jackscrew to pinch the part.
DAY 11: The National Transportation Safety Board reports that Flight 261's stabilizer jackscrew, recovered from the ocean floor, shows signs of damage.
Keyed, jackscrew operated polycarbonate housings provide rugged and aesthetically pleasing enclosures for the modules.
They just refused to allow the jackscrew heads to be easily turned.
The crash is believed to have been caused by a faulty jackscrew that controlled the plane's horizontal stabilizer tail wings.
The jackscrew raises and lowers the stabiliser, moving the plane's nose up or down.
The Dearman Light series consists of three single jackscrew and two double jackscrew chain clamp models.
This system can employ an arrangement of cables wound around a drum and/or a jackscrew that transfers the pilot's motion into changes of the trim tab's position.
* Loose or worn-out elevator trim jackscrew, especially in aircraft used for glider or banner towing.
The press also included a jackscrew, which pushed the baling compartment floor downward when the mule was led counter-clockwise.