Ads
related to: utility trailer jack top screw
Search results
Results from the WOW.Com Content Network
A screw jack consists of a heavy-duty vertical screw with a load table mounted on its top, which screws into a threaded hole in a stationary support frame with a wide base resting on the ground. A rotating collar on the head of the screw has holes into which the handle, a metal bar, fits.
A 2.5-ton house jack that stands 24 inches from top to bottom fully threaded out. A house jack, also called a screw jack, is a mechanical device primarily used to lift buildings from their foundations for repairs or relocation. A series of jacks is used and then wood cribbing temporarily supports the structure. This process is repeated until ...
Most jack posts are split in two near the middle, with the upper end carrying the jack designed to slide within the lower portion. Gross adjustment for length is first made by pulling a pin and sliding the two sections within each other until they almost fill the gap, inserting the pin to lock them, then using the screw to close any remaining gap.
This property is also the basis for the use of screws in screw top container lids, vises, C-clamps, and screw jacks. A heavy object can be raised by turning the jack shaft, but when the shaft is released it will stay at whatever height it is raised to. A screw will be self-locking if and only if its efficiency is below 50%.
AOL latest headlines, entertainment, sports, articles for business, health and world news.
Mi-Jack Products is an American manufacturer of industrial, intermodal, and port cranes based in Hazel Crest, Illinois. [1] It manufactures Travelift and Translift rubber-tired gantry cranes , as well as various other container handling systems [ 2 ] and is a part of the Lanco Group of Companies.
Ads
related to: utility trailer jack top screw