Apparatus for securing the bolts of the reactor pressure vessel head to the reactor pressure vessel
专利汇可以提供Apparatus for securing the bolts of the reactor pressure vessel head to the reactor pressure vessel专利检索，专利查询，专利分析的服务。并且Apparatus securing a locking bolt of a pressure head to a reactor pressure vessel in which the pressure head flange is urged in one direction and the bolt is tensioned in an opposite direction to reduce the interfacing force between confronting walls of a nut securing the locking bolt and the pressure head flange, while an operator tightens the nut against the pressure head flange. For tensioning the bolt, a cylindrical force transmitting member has its lower end threaded for engagement with the locking bolt and it upper end threaded, but without any pitch, to receive in threaded engagement a puller or lifter rod similarly threaded. The force transmitting member is split axially so that its halves can be displaced radially to facilitate the retaining of the lifter rod in threaded engagement therewith, while rotating the force transmitting member for adjustable threaded engagement with the locking bolt without rotating the puller rod. Axially movable retaining sleeves surround the split force transmitting member for at times to permit separation thereof to retain the lifted rod in threaded engagement therewith while rotating the force transmitting member for adjustable threaded engagement with the locking bolt without rotating the puller rod, and at other times securing the force transmitting member in locking engagement with the lifter rod for movement therewith. For urging the flange in the one direction a force is transmitted through columns and a connector sleeve for application to the pressure head flange. A suitable hydraulic system with pistons initiates the transmitted forces in each direction.，下面是Apparatus for securing the bolts of the reactor pressure vessel head to the reactor pressure vessel专利的具体信息内容。
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2 用于产生氢的装置
