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    • 4. 发明授权
    • Primary manway closure redundant restraint
    • 主要道路闭合多余的约束
    • US4524729A
    • 1985-06-25
    • US440886
    • 1982-11-12
    • Frank P. Hill, Jr.John W. Alden, Jr.Harry K. Williams
    • Frank P. Hill, Jr.John W. Alden, Jr.Harry K. Williams
    • F16J13/10F22B37/22F23M7/00
    • F16J13/10F22B37/221Y10T292/205Y10T292/214
    • In combination, a vessel (10), opening means (16) in the vessel, a cover (18), flange means (20) surrounding the opening means, a primary closing means (22, 24) for the cover including a plurality of studs (22) securing the cover onto the vessel, the studs having inner ends threaded into openings (26) in the vessel, nuts (24) cooperating with the outer ends of each of the studs, secondary closing means (32, 34, 38, 40) for the cover including cylindrical clamp means (30, 32) made up of more than one piece, a protruding ledge (34) on the cover over which the clamp means extends, an annular groove (36) in the flange means into which the clamp means extends, a circular retaining ring (38) which surrounds the clamp means, a plurality of threaded openings (42) in the retaining ring, and a plurality of set screws (40) threaded into the openings, so that their ends force the clamp means into tight clamping engagement with the ledge on the cover and the groove in the flange means.The combination set forth above, including a groove (43) in the outer surface of the retaining ring, into which the ends of set screws come into contact.The combination set forth above, further including a plurality of spacer lugs (44) attached to the retaining ring, which spacer lugs contact the vessel so as to accurately position the retaining ring with respect to the clamp means.
    • 组合在容器中的容器(10),开启装置(16),盖(18),围绕打开装置的凸缘装置(20),用于盖的主闭合装置(22,24),包括多个 螺栓(22)将盖固定在容器上,螺柱具有螺纹连接在容器中的开口(26)中的螺栓,螺母(24)与每个螺柱的外端配合,辅助闭合装置(32,34,38 ,40),所述盖包括由多于一个部件构成的圆柱形夹持装置(30,32),所述盖子上的突出突出部(34),所述夹紧装置延伸穿过所述凸缘(34),所述凸缘装置中的环形槽(36) 夹紧装置延伸的圆形保持环(38),围绕夹紧装置的圆形保持环(38),保持环中的多个螺纹开口(42)和螺纹连接到开口中的多个固定螺钉(40),使得它们的端部 迫使夹紧装置与盖上的凸缘和法兰装置中的凹槽紧密地夹紧接合。 上述组合,包括在固定环的外表面中的凹槽(43),固定螺钉的端部与其接触。 上述组合,还包括附接到保持环的多个隔离器突片(44),该间隔件突片接触容器,以便相对于夹紧装置精确地定位保持环。