screw jack


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Related to screw jack: Scissor jack

screw jack

[′skrü ′jak]
(mechanical engineering)

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 ?
Nook ActionJac 5-ton machine screw jacks are being used to lift portions of a stage for the Cirque D'Soleil, a Canadian-based circus performing at Walt Disney World in Orlando, FL.
We often had to walk customers through parts configuration to make sure they had the right screw jack with the right specifications for their designs," said Bruce Hamper, Power Jacks product and marketing director.
CLEVELAND, April 13 /PRNewswire/ -- Nook Industries, a leading manufacturer of linear motion control systems and components, announces the availability of downloadable Reliance Electric(R) and Baldor(R) motors, as well as handwheels and counters in 2D and 3D CAD for its line of ActionJac(TM) screw jacks.
CLEVELAND, June 28 /PRNewswire/ -- Nook Industries, a leading manufacturer of linear motion control systems and components, today announced the availability of its ActionJac(TM) family of ball screw and trapezoidal screw jacks in metric sizes, providing a complete range of universally accepted mechanical actuators.
Tenders are invited for Synchronized Lifting Jacks Electrical Operated Screw Jack Set Of 5 Jacks Cap.
Tenders are invited for Emd Pt No: 40062405 Dlw Pt No: 19151135 Screw Jack Em-2000 As Per Enclosed Drawing No 40062405.
The firm's Staxo 40 system allowed for precise adaptation of the shoring tower, the U-heads, and the feet of the screw jacks, which boast an extension range of 750mm.
To safely accomplish this, the three, triple 2x10 wood beams that are spanning 17-feet (more or less) must be shored mid-span with 6x6 posts or screw jacks capable of supporting 5,000 pounds.
There are a number of pumps for drawing water from a well and a wide range of military equipment from portable bridges to screw jacks for prising open defensive grills.
The room also houses some removable gear: eight wing jacks, a ground rod, a slide hammer, screw jacks and corner jacks along with their extension base plates, stairs/ ladders and six 5-gal water cans.