Abstract 1. A device for handling the elements of a nuclear reactor core and comprising, mounted within a shield slab which closes the reactor core containment vessel, a first rotation plug of large diameter which is centered on the axis of said reactor core, a second rotating plug mounted eccentrically with respect to the axis of said first plug, and a third rotating plug mounted eccentially with respect to the axis of said second plug, the eccentric displacement of the second plug with respect to the first being equal to the eccentric displacement of the third plug with respect to the second plug so that when the first and third plugs are in coaxial relation, a core lid which is suspended beneath the third plug can be placed strictly above and in axial alignment with the reactor core during operation of the reactor, wherein the second and third plugs are provided through the shield slab with access openings to the interior of the containment vessel and wherein the second plug is fitted with a fourth rotating plug mounted eccentrically with respect to the axis of said second plug, said fourth plug being in turn provided with an excess opening to the interior of said containment vessel.
A device for handling the elements of a nuclear reactor core and comprising, mounted within a shield slab which closes the reactor core containment vessel, a first rotation plug of large diameter which is centered on the axis of said reactor core, a second rotating plug mounted eccentrically with respect to the axis of said first plug, and a third rotating plug mounted eccentially with respect to the axis of said second plug, the eccentric displacement of the second plug with respect to the first being equal to the eccentric displacement of the third plug with respect to the second plug so that when the first and third plugs are in coaxial relation, a core lid which is suspended beneath the third plug can be placed strictly above and in axial alignment with the reactor core during operation of the reactor, wherein the second and third plugs are provided through the shield slab with access openings to the interior of the containment vessel and wherein the second plug is fitted with a fourth rotating plug mounted eccentrically with respect to the axis of said second plug, said fourth plug being in turn provided with an excess opening to the interior of said containment vessel.
Claim 2
Independent Claim
204 words
A device for handling the elements of a nuclear reactor core and comprising, mounted within a shield slab which closes the reactor core containment vessel, a first rotation plug of large diameter which is centered on the axis of said reactor core, a second rotating plug mounted eccentrically with respect to the axis of said first plug, and a third rotating plug mounted eccentially with respect to the axis of said second plug, the eccentric displacement of the second plug with respect to the first being equal to the eccentric displacement of the third plug with respect to the second plug so that when the first and third plugs are in coaxial relation, a core lid which is suspended beneath the third plug can be placed strictly above and in axial alignment with the reactor core during operation of the reactor, wherein the second and third plugs are provided through the shield slab with access openings to the interior of the containment vessel and wherein the second plug is fitted with a fourth rotating plug mounted eccentrically with respect to the axis of said second plug, said fourth plug being in turn provided with an excess opening to the interior of said containment vessel.