Head bolt and driver therefore

Claim 1

A fastener and socket tool for use in high tension head bolt application arrangements, comprising, a fastener including a shank, wherein said shank is defined about an elongate axis terminating in a threaded portion at one end and a torque receiving head means at the other end, and said head means including a first torquing head, including a pressure surface proximate said other end, and a second torquing head cavity recessed within said first head remote from said pressure surface, wherein said second torquing head cavity is of a reduced perimeter diameter relative to said first head, and a socket tool, and said socket tool comprises a body portion defined by a cylindrical external configuration including a first recess for reception of said first torquing head and including a projection positioned within said first recess for positioning within said second torquing head, and a second recess axially displaced from said first recess and projection for reception of a torque application tool wherein said first recess, said projection, and said second recess are coaxially aligned with respect to one another, and the socket tool includes a socket tool web medially of the socket tool, and the socket tool includes a socket tool axis, and the web includes a web bore, and a threaded adjuster bolt, the threaded adjuster bolt rotatably mounted within the web bore coaxially aligned within the socket axis, and the adjuster bolt includes an adjuster bolt head and an adjuster bolt head cavity mounted within the adjuster bolt head, and a lock ring mounted between the bolt head and the second recess, and the first recess including a piston cavity coaxially aligned within the socket tool between the first recess and the second recess with the piston cavity having a projection piston slidably mounted therewithin, the projection piston includes the projection mounted on a first side of said piston, and a second side of said piston including a piston socket, the piston socket receiving the adjuster bolt therewithin spaced from the bolt head, and the piston cavity having a key way slot, and projection piston including a piston rib mounted to a periphery of the piston to maintain alignment of the piston and the projection relative to the first recess, whereupon rotation of the adjuster bolt effects reciprocation of the projection piston within the piston cavity.