Guardrail construction

Claim 1

A GUARDRAIL CONSTRUCTION COMPRISING A PLURALITY OF VERTICAL POSTS ARRANGED IN SPACED APART RELATION, EACH OF SAID POSTS COMPRISING A PAIR OF ESSENTIALLY IDENTICAL GENERALLY U-SHAPED POST EXTRUSIONS EACH HAVING AN INTURNED LONGITUDINAL BEAD ALONG ONE SIDE EDGE AND A REVERSELY BENT PORTION ALONG THE OPPOSITE SIDE EDGE DEFINING AN OUTWARDLY OPENING LONGITUDINAL CHANNEL, THE PAIRS OF POST EXTRUSIONS BEING FITTED TOGETHER WITH THEIR RESPECTIVE LONGITUDINAL BEADS RECEIVED IN THE LONGITUDINAL CHANNEL OF THE OTHER, AND LOCKING MEANS SECURING SAID PAIRS OF EXTRUSIONS TOGETHER, SAID LOCKING MEANS COMPRISING A LOCKING BAR WEDGED IN CONTACT WITH THE REVERSELY BENT PORTIONS OF THE FITTED TOGETHER POST EXTRUSIONS, AND RAIL ASSEMBLIES EXTENDING BETWEEN SAID POSTS, SAID RAIL ASSEMBLIES EACH COMPRISING A GENERALLY U-SHAPED RAIL EXTRUSION HAVING FLANGES EXTENDING ALONG ITS OPPOSITE SIDE EDGES, AND MEANS FOR SECURING THE OPPOSITE END EDGES OF SAID RAIL EXTRUSION TO SAID POSTS.