ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,620, issued on Dec. 2, was assigned to GANTRY RAILING LTD. (Great Britain).

"Rail fastening device" was invented by Peter Nathan Bygrave (Gloucester, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rail fastening device (10) comprises a clip 16 and a washer (17) for fastening to a rail support (12) by an upstanding bolt 14 having a nut (15), which can be tightened to lock the device (10) in position. The clip (16) and washer (17) comprise respective apertures (18), (19) for receiving the bolt (14). The washer (17) is adapted to rotate as the nut (15) is tightened until a formation on the washer (17) abuts an upstanding formation (24) o...