F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/2
F16B 12/04 (2006.01)
Patent
CA 1171309
ABSTRACT OF THE DISCLOSURE The present invention provides a mine roof support plate bolt for securing an apertured support plate to a mine roof, and designed for use in a preformed hole bored into the mine roof, comprising: a metallic elongated rod having an arcuate surface with irregularities thereon and of a first diameter, with a head and flange at the outer end thereof and an inwardly bevelled inner end having a transverse groove there- in, said end having a bevelled surface from said arcuate sur- face of the rod to the groove, forming spaced cutting teeth along each side of the groove, and having a helical, counter- clockwise, channel formed in the rod, directly communicating with said groove, and extending from said groove along a por- tion of the rod, the diameter of the rod at the area of the channel being smaller than said first diameter, whereby said cutting teeth effectively shread packages of fast setting resin constituents that set-up on mixing and effect thorough mixing of the same, and said channel serving to pump resin constituents upwardly into said groove, through clockwise rotation o. said rod, and retard the downflow if said resin constituents while said constituents set-up in said rock structure and about said rod in the mine roof.
360710
Marks & Clerk
Rozanc Richard C.
LandOfFree
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