| 摘要 |
1,006,551. Locking nuts and screws. NOUVEAUTES MECANIQUES ELECTRIQUES NOMEL. June 18, 1962 [June 26, 1961), No. 23382/62. Heading F2H. A resilient lock washer having a dished body formed with a central hole 2 has radial corrugations, defining sharp ridges 7, on an annular zone which surrounds the hole. The ridges 7 protrude from the top surface of the washer but in a modification, Fig. 4 (not shown) the ridges are level with the surface of the washer. Pairs of teeth 9 are formed on the outer periphery of the washer. In another modification the washer has a rectangular body.
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