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2. Jack (device) - Wikipedia

   en.wikipedia.org/wiki/Jack_(device)

   A jack which can lift a mobile home. 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 ...

3. Jackscrew - Wikipedia

   en.wikipedia.org/wiki/Jackscrew

   The maximum mechanical advantage possible for a hydraulic jack is not limited by the limitations on screw jacks and can be far greater. After World War II, improvements to the grinding of hydraulic rams and the use of O ring seals reduced the price of low-cost hydraulic jacks and they became widespread for use with domestic cars. Screw jacks ...

4. Jack arch - Wikipedia

   en.wikipedia.org/wiki/Jack_arch

   A jack arch is a structural element in masonry construction that provides support at openings in the masonry. Alternate names are lintel arch, [1] flat arch and straight arch. Unlike regular arches, jack arches are not curved in form. Instead, they are flat in profile and are used under the same circumstances as lintels.

5. Blackhawk (tools) - Wikipedia

   en.wikipedia.org/wiki/Blackhawk_(tools)

   Blackhawk also produced Blackhawk Jack brand floor jacks under the Blackhawk Mfg. Co. name including a handy 1-1/2 Ton heavy steel wheeled model. [10] In the early 1950s, the Blackhawk hand tool line was acquired by the New Britain Machine Company. In the 1970s, Litton Industries purchased New Britain. In the 1980s, National Hand Tool acquired ...

6. The best women's slippers of 2025 - AOL

   www.aol.com/lifestyle/best-womens-slippers...

   There are hundreds of women’s slippers to choose from today, with options in every style, color, and fabric you can imagine. To help you find the best slippers to wear around the house — and ...

7. Lowboy (trailer) - Wikipedia

   en.wikipedia.org/wiki/Lowboy_(trailer)

   The lowboy trailer comes in several types, [2] for a wide range of tasks. Some types are: Fixed gooseneck (FGN): allows a longer deck length and has the lightest weight. These are lower trailers than normal, with low-profile tires, usually with drop ramps in the rear to facilitate loading of equipment, but are not actually considered "lowb