Metal fencing, gratings and the like employing novel interconnecting means and method of assembly

Claim 1

A panel for fence, grating and other similar uses comprising: at least a pair of spaced multi-sided tubular metallic rails parallelly arranged for fence and grating purposes, each of said rails being provided with a like number of similarly spaced aperture means extending substantially at right angles through the longitudinal axis of said rails, said aperture means each having a multi-sided closed configuration extending completely through said rails, a plurality of multi-sided tubular metallic pickets having an outside configuration similar to the configuration of said aperture means, each one extending snugly through aligned aperture means in each of said rails to form with said rails a panel, and fastening means terminating within the rail and penetrating a common side of each of said rails at the point of intersection of said pickets' centerline and the rail centerline and into said aperture means and engaging said pickets to firmly hold said pickets in said rails to form a rigid structure.