| 摘要 |
1,166,272. Washers; nuts. A. V. RAYMOND, [trading as A. RAYMOND DRUCKKNOPF UND METALLWARENFABRIK]. 4 Oct., 1966 [4 Oct., 1965], No. 44308/66. Heading F2A. A cup-shaped plastics sealing washer has an inturned lip retaining a spring nut. In use, a washer and nut assembly are pushed on to a bolt 10, and the nut presses the washer against the plate 8 to form a seal. The nut may be retained in the washer by a plate (7), Fig. 2 (not shown). |
