Underframe for cargo truck and means for reinforcing the same

Claim 1

IN COMBINATION: A FIRST SILL HAVING SPACED FIRST AND SECOND FLANGES AND A FIRST INTERMEDIATE WEB CONNECTING SAID FLANGES A SECOND SILL SUPERIMPOSED ON, AND EXTENDING AT AN ANGLE WITH REFERENCE TO SAID FIRST SILL, SAID SECOND SILL HAVING SPACED THIRD AND FOURTH FLANGES AND A SECOND INTERMEDIATE WEB CONNECTING SAID THIRD AND FOURTH FLANGES, AND A GUSSET FOR SECURING SAID SILLS TOGETHER, FOR TRANSMITTING A LOAD APPLIED TO THE UPPER SILL TO THE LOWER SILL AND FOR RESISTING TORQUE APPLIED TO THE ASSEMBLED SILLS, SAID GUSSET COMPRISING: A BODY PORTION HAVING FIRST AND SECOND PARALLEL EDGES DISPOSED ON EITHER SIDE OF THE MEDIAN LINE OF SAID BODY PORTION, ONE END OF SAID BODY PORTION HAVING THIRD AND FOURTH EDGES WHICH EXTEND FROM SAID FIRST AND SECOND EDGES RESPECTIVELY AND INTERSECT EACH OTHER TO FORM A SUBSTANTIALLY RIGHT ANGLE, THE OPPOSITE END OF SAID BODY PORTION HAVING FIFTH AND SIXTH EDGES WHICH EXTEND FROM SAID FIRST AND SECOND EDGES AND INTERSECT ECH OTHER TO FORM A SUBSTANTIALLY RIGHT ANGLE, SAID THIRD AND FIFTH EDGES AND SAID FOURTH AND SIXTH EDGES BEING PARALLEL TO EACH OTHER, RESPECTIVELY, MEANS SECURING SAID THIRD EDGE TO SAID SECOND WEB, MEANS FOR SECURING THE BODY OF SAID GUSSET TO THE EDGE OF SAID FOURTH FLANGE, MEANS SECURING SAID FIFTH EDGE TO SAID FIRST FLANGE, AND MEANS SECURING SAID SIXTH EDGE TO SAID FIRST WEB.