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In oil field tubing, buttress thread is a pipe thread form designed to provide a tight hydraulic seal. The thread form is similar to that of Acme thread [10] but there are two distinct threaded portions of differing diameters and profiles, the larger having a wedging profile, with a tapered sealing portion in between the larger and smaller diameters.
Merrick Thread Mill, No. 2: 195 Appleton Street: Partial mill and office; half of complex burned down in October 1993. 24: Newton Paper Company Mill: 200 South Water Street: Newton Bros. development; partially extant, heavily altered as Sonoco paper recycling plant 25: Norman Paper Company Mill: 1892: 5-13 Appleton Street: Produced fine writing ...
This is most easily described for a square or buttress thread as the thread angle is 0 and has no bearing on the calculations. The unwrapped thread forms a right angle triangle where the base is π d m {\displaystyle \pi d_{\text{m}}} long and the height is the lead (pictured to the right).
enlarged in 1893; became American Thread Co. in 1897; destroyed by fire January 12, 1987 (was home to the Kerr Mill Outlet store) 32: Kerr Thread Mill No.2: 1907: 1987: Martine Street: Red brick: built by the American Thread Co.; destroyed by fire January 12, 1987 [21] (the fire began in this building) 33: Kerr Thread Mill No.3: after 1916: ...
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Coats Group plc is a British multinational company. The company provides products, including apparel, accessory and footwear threads, structural components for footwear and accessories, fabrics, yarns, and software applications. Coats is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index and FTSE4Good Index. Revenues ...