Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1996-09-26
1998-02-03
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 55, 173 2, 227 2, B25B 2100
Patent
active
057132500
ABSTRACT:
Apparatus for assembling fasteners includes a fastening wrench operated by a first operator and having interchangeable sockets of different sizes for engaging nuts of different sizes. The nuts are required to be tightened to different torque values on their respective bolts. When the first operator removes a socket from a socket tray in preparation for attaching the socket to the fastening wrench, a signal is sent to a controller which determines the torque value associated with that socket size. When the fastening wrench reaches the specified torque value during the tightening operation, the controller automatically shuts the fastening wrench off. The apparatus also includes a second wrench, operated by a second operator, for engaging the heads of the bolts to prevent them from turning during the tightening process. During the tightening process the second operator may not be in communication with the first operator. The second wrench includes a safety switch which when not depressed by the second operator, prevents the fastening wrench from operating for the protection of the second operator.
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Hendricks Daniel Albert
Pumphrey Arlen Ray
Schempp Robert Stephen
Danganan Joni B.
Smith James G.
Sproule Robert H.
The Boeing Company
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