Testing of poles

Details Testing of poles Testing of poles

1990-07-02

1991-09-24

Lall, Parshotam S.

Boots, shoes, and leggings

73849, 73786, G01N 320

Patent

active

050519190

ABSTRACT:
The residual strength of electricity poles is determined by the deflection of the poles under a pre-determined applied load. The load is applied by an extensible ram which has a foot secured to the base of the pole by a chain and a head plate with teeth which engages the sides of the poles. A preset hydraulic pressure is applied to the ram by a manual pump and the deflection if measured by strain gauges mounted on a support frame. The load deflection data are fed to a programmed computer which calculates the residual strength.

REFERENCES:
patent: 2283730 (1942-05-01), Gardner
patent: 2854847 (1958-10-01), Brady
patent: 3733049 (1973-05-01), van den Hove et al.
patent: 4366874 (1983-01-01), Pidoux et al.
patent: 4464937 (1984-08-01), Watts et al.
patent: 4574356 (1986-03-01), Schattschneider et al.

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