Fluid operated torque tool for and a method of tightening a...

Details Fluid operated torque tool for and a method of tightening a... Fluid operated torque tool for and a method of tightening a...

2007-06-01

2010-06-15

Thomas, David B (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

Reexamination Certificate

active

07735397

ABSTRACT:
A fluid operated torque tool tightens a nut through a spring washer on a plate on a railroad crossing, and has a housing, two coaxial drives applying equal turning forces in opposite directions around an axis, with one of the two coaxial drives located around the other of the two coaxial drives, a first socket attached to the one coaxial drive and configured to fit on the rectangular plate, and a second socket attached to the other coaxial drive inside the first socket and configured to fit on the nut, with the washer being not engaged by the sockets, so as to tighten the nut and to tighten up the spring washer onto the plate while the first socket and the housing stand still.

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