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.
Type:
Grant
Filed:
November 19, 1981
Date of Patent:
July 26, 1983
Assignee:
Bethlehem Steel Corporation
Inventors:
Edwin B. Wilson, C. Frederick Eben, Charles L. Meyer, Charles W. Schaeffer