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A jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew. It is commonly used to lift moderate and heavy weights, such as vehicles; to raise and lower the horizontal stabilizers of aircraft; and as adjustable supports for heavy loads, such as the foundations of houses. [citation needed]
A tow hitch (or tow bar or trailer hitch in North America [1]) is a device attached to the chassis of a vehicle for towing, or a towbar to an aircraft nose gear. It can take the form of a tow ball to allow swiveling and articulation of a trailer , or a tow pin, or a tow hook with a trailer loop, often used for large or agricultural vehicles ...
A jack is a mechanical lifting device used to apply great forces or lift heavy loads. A mechanical jack employs a screw thread for lifting heavy equipment. A hydraulic jack uses hydraulic power. [1] The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be performed. Jacks are usually rated ...
Shoring is commonly used when installing the foundation of a building. A shoring system such as piles and lagging or shotcrete will support the surrounding loads until the underground levels of the building are constructed. Commonly used shoring equipment includes post shores, shoring beams, and timber jacks.
The tow-ball is popular for lighter loads, readily allowing swivelling and articulation of a trailer. A tow pin and jaw with a trailer loop are often used for large or agricultural vehicles where slack in the pivot pin allows the same movements. A pintle and lunette is a very heavy duty hitching combination used in construction and the military.
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- 1531 Alum Industrial Drive, Columbus, Ohio · Directions · (800) 878-7305
