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2. Central vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Central_vacuum_cleaner

   Compatible with standard tools and accessories — Most central vacuum hoses are compatible with a wide range of industry-standard brushes and tools used with ordinary portable vacuum cleaners. In the United States, the de facto standard size is 1 1 / 4 inch (3.175 cm) inside diameter for tools. For some accessories, it may be necessary to ...

3. Hose clamp - Wikipedia

   en.wikipedia.org/wiki/Hose_clamp

   Screw clamps are normally used for hoses 1/2 inch diameter and up, with other clamps used for smaller hoses. The first patent for a worm-drive hose clamp was granted to Swedish inventor Knut Edwin Bergström [ se ] in 1896 [ 1 ] Bergström founded “Allmänna Brandredskapsaffären E. Bergström & Co.” in 1896 (ABA) to manufacture these worm ...

4. Vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Vacuum_cleaner

   Only the hose and cleaning head need be carried from room to room, and the hose is commonly 8 m (25 ft) long, allowing a large range of movement without changing vacuum inlets. Plastic or metal piping connects the inlets to the central unit. The vacuum head may be unpowered, or have beaters operated by an electric motor or by an air-driven turbine.

5. AN thread - Wikipedia

   en.wikipedia.org/wiki/AN_thread

   AN sizes range from -2 (dash two) to -32 in irregular steps, with each step equating to the OD (outside diameter) of the tubing in 1 ⁄ 16-inch increments. Therefore, a -8 AN size would be equal to 1 ⁄ 2 -inch OD tube.

6. Creighton stuns Hunter Dickinson, top-ranked Kansas in ... - AOL

   www.aol.com/creighton-stuns-hunter-dickinson-top...

   Once again, Greg McDermott has knocked off the top-ranked team in the country. Creighton rolled over No. 1 Kansas 76-63 on Wednesday night at the CHI Center in Omaha in the Big 12-Big East Battle.

7. Hose coupling - Wikipedia

   en.wikipedia.org/wiki/Hose_coupling

   Norway uses NOR fittings for attack hoses. They come in three sizes: NOR 1 (83 or 84 mm; 2 + 1 ⁄ 2-inch), NOR 2 (65 or 66 mm; 2"), and NOR 3 (50 or 55 mm; 1 + 1 ⁄ 2-inch). NOR 2 is mostly used in the maritime and offshore oil industry.