F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/4, 81/48
F16B 31/02 (2006.01) B25B 13/06 (2006.01) B25B 23/14 (2006.01) F16B 23/00 (2006.01) F16B 43/02 (2006.01)
Patent
CA 1287991
V12.1:15694/ERC Abstract of the Invention Axially-extending troughs in a bark of an internally threaded collar receive setting balls of a driver that apply a torque to the collar through the balls bearing on the walls of the troughs. At a predetermined pre-load, the balls fail the bark and plow through it to develop circumferential furrows, and the torque application on the collar ends. A second torquing with balls at a different axial position fails the bark again at the same pre-load to compensate for any relaxation after the first torque application.
501492
Fetherstonhaugh & Co.
Wing George Seabrook
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