| 摘要 |
<p>1,129,345. Valves. J. GACHOT. 8 March, 1967 [25 March, 1966], No. 10895/67. Heading F2V. A sealing bellows 3 for a valve shaft 5 is secured in a valve head 1 by a flexible U-section ring 14 and split washer 16a, 16b, the bellows having a flange 11 at the end remote from the closure member (4), Fig. 2 (not shown), which is passed through a lower opening 3 in the head 1 until it lies above the opening of a cavity 2, as in Fig. 3 (not shown), the ring 14, Fig. 8 (not shown), is then passed over the flange and the split washer 16a, 16b is placed in the ring, the bellows are pulled back into the cavity 2 until the ring 14 seats on a step 17, the shaft is subsequently inserted, and the assembly which also includes washers 18 and 19 is clamped by a plate 21. The bellows may be made integral with the closure member. The ring 14 and bellows 3 may be made from P.T.F.E. The washer may comprise more than two elements.</p> |
