| 摘要 |
Apparatus and method for placing and holding tension on a fastener device of the type having a shaft and a cooperable member engageable therewith. The apparatus may comprise a housing member for surrounding the fastener shaft in a fixed relationship; a piston member disposed within the housing member for seating axial movement therein between first and second positions; a passageway centrally disposed in the housing and piston member through which the fastener shaft may extend and be affixed to the piston member; an annular chamber defined by the housing and piston members; and one or more ports communicating with the chamber through which pressure may be applied to the piston member for movement thereof between the first and second positions so as to place the fastener shaft in tension. A method of utilizing the apparatus is also disclosed.
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