Transition plate for a mine roof truss
AssigneeBethlehem Steel Corporation
InventorsEdwin B. Wilson, C. Frederick Eben, Charles L. Meyer, Charles W. Schaeffer
Life of this patent
Estimating the term…
Abstract
A generally rectangular transition plate for connecting inclined and horizontal chords of a mine roof truss has one face defining a generally flat planar plate bearing surface adapted to be closely received against a mine roof. The sides and one end of the plate are bent outwardly from the one face. A first opening in the plate adjacent the one end is adapted to receive a mine roof bolt. A second opening in the plate is located adjacent the other end of the plate. A saddle portion extends between the other end of the plate and the second opening and is adapted to receive a truss tie member. The plate has a low profile and sufficient rigidity to sustain the forces present in the truss.
Claims7
A transition plate for connecting the inclined and horizontal chords of a mine roof truss comprising a generally flat body having a longitudinal axis extending between the body ends, one face of said flat body defining a generally planar plate bearing surface adapted to be closely received against a mine roof, a first opening in said flat body adjacent one end of the flat body positioned on said longitudinal axis and adapted to receive a mine roof bolt, and an elongated saddle portion extending outwardly from said one face along said longitudinal axis adjacent said other end adapted to receive a tie member.
Dependencies are inferred from the claim text.