| 摘要 |
1,062,188. Hatch covers. JAROCO INTERNATIONAL Inc. Oct. 4, 1963 [Jan. 15, 1963], No. 39194/63. Heading B7S. In a hatch cover assembly comprising a horizontal hatch cover (10), which may be in sections (12), a coaming (14) in the plane of the cover and extending around the cover, and an inflatable gasket (16) of generally rectangular cross-section embedded in the peripheral wall (18) of the cover, or cover sections, the gasket. has a vertical engaging surface (30) facing the coaming or the adjacent gasket, means (ribs 24 on the gasket and plates 26 secured in channel 21) are provided to retain the gasket in place (in the channel 21 which provides the cavity 20 in the wall 18 for housing the gasket) during inflation, and friction means (grooves 33) on the gasket engaging surface effect locking of the hatch cover to the coaming by frictionally anchoring the gaskets against the coaming and adjacent gaskets.
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