Locking device for threaded fastener

F - Mech Eng,Light,Heat,Weapons – 16 – B

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F16B 39/00 (2006.01) F16B 39/26 (2006.01) F16B 39/282 (2006.01)

Patent

CA 1320364

Abstract of the Disclosure A fastener assembly comprising a nut and a locking washer. The washer is mounted on a skirt carried by the nut so that the washer cannot be separated from the nut. The nut and the washer having facing cam surfaces formed in such a manner that as the nut is tightened on a workpiece, the nut engages the washer to rotate same. Vibrations tending to loosen the washer cause the cam surfaces to wedge the washer between the nut and the workpiece to thereby tighten the assembly. Both the nut and the washer have a hexagonal configuration so that they can be engaged together by a wrench for loosening same.

605350

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