Yieldable connection

Details Yieldable connection Yieldable connection

1983-12-12

1985-12-24

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

403362, 403DIG8, 405260, 411411, E21D 2000

Patent

active

045603057

ABSTRACT:
The invention provides a yieldable connection between a metallic rod-shaped body and a holding means through which it passes and is intended particularly for yieldable rock bolts (roof bolts) anchor bolts and yieldable props, e.g. for mining and tunnelling. For that purpose shear bodies, e.g. spheres or inclined cylindrical pins are provided between the holding means and the slidable rod-shaped body and project some distance into the cross-section of the rod-shaped body. On sliding of the latter, in the holding means, these shear bodies form grooves in the rod, whereby energy is absorbed.

REFERENCES:
patent: 349005 (1886-09-01), Sargent
patent: 1244848 (1917-10-01), Gadke
patent: 1447253 (1923-06-01), La Fon
patent: 2355900 (1944-08-01), Beede
patent: 2719025 (1955-09-01), Stone
patent: 4020929 (1977-05-01), Goldin

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