U-bolt torquing method

Details U-bolt torquing method U-bolt torquing method

1994-12-12

1996-02-20

Wieder, Kenneth A.

Measuring and testing

Dynamometers

Responsive to torque

73761, 73 1C, G01L 500

Patent

active

054920191

ABSTRACT:
A method of determining the optimum torque for securing a U-bolt assembly calculated according to the formula T=UL.multidot.d.multidot.K.multidot.LF, where T is the optimum torque, UL is a calculated value for the ultimate tensile load of one U-bolt leg, d is the diameter of the threaded end of one U-bolt leg, K is a torque coefficient of friction associated with the U-bolt assembly, and LF is a chosen load safety factor. A tool used in securing the U-bolt assembly includes at least one surface having torquing indicia located thereon and a radius for testing the bend radius on the U-bolt. The torquing indicia includes U-bolt assembly designation data and a corresponding optimum torque value.

REFERENCES:
patent: 27140 (1860-02-01), Maranville
patent: 387284 (1888-08-01), Dupee
patent: 1860174 (1932-05-01), Cronk
patent: 2304327 (1940-06-01), Anderson
patent: 4324975 (1982-04-01), Rees
patent: 5253427 (1993-10-01), Bartlett

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