| 摘要 |
<p>1,252,756. Securing hubs on shafts. P. & O. PILGRIM VALVE Ltd. 12 Feb., 1969 [11 March, 1968], No. 11816/68. Heading F2U. A hub 12 of a marine propeller is secured on a shaft 10 by a separate externally tapered forcefit metallic sleeve 14, with a layer of hardenable or cold-setting synthetic resin composition between the external sleeve surface and the internal hub surface, the sleeve and hub being forced into engagement by axial loading while the composition is setting. As shown an annular stress-relieving gap is formed at one end by oppositely disposed circumferential grooves 18, 24 in the sleeve and hub, the gap being filled with the composition and enclosed by a watertight ring 15 welded to the hub.</p> |
