Abstract: An interlocking steel fencing system having posts and rails made from tubular steel, the posts and rails being either round or rectangular in shape, the posts having openings therein which correspond with the shape of a rail designed to be inserted therein, the end posts being provided with openings only on one side thereof, while in-line posts are provided with openings parallel to one another and corner posts are provided with openings in ninety-degree relation to one another, the end posts and corner posts being provided with spacer bars therein with which the rails are firmly abutted during assembly, and these posts being further provided with a locking cap to prevent removal of the spacer bars, the fencing system designed to be assembled such that each rail abuts the adjacent rail at a central location within the post or, on an end or corner post, abuts a spacer bar within the post and wherein the post openings are slightly larger than the rails to allow the fencing system to traverse uneven topography.

Abstract: A round pen and the method of constructing the same which comprises the steps of selecting a plurality of vertical round tubular steel posts, a plurality of horizontal rails of tubular steel and a plurality of cables of sufficient length to traverse the distance from the first end post around the intermediate posts and back to the second end post, each intermediate post having a series of eyes welded thereon, fitting the cables through all of the eyes on the intermediate posts and attaching an end of each cable to the first end post, attaching an opposite end of each cable to the second end post through a spring, inserting an end of a horizontal rail into an opening in the first end post and then adjusting the opposite end of the rail into an opening in the next adjacent intermediate post, continuing to insert horizontal rails in all of the intermediate posts until the rails are in abutting relation in all of the intermediate posts, inserting the ends of a horizontal rail in an opening in the second end post

Abstract: A round pen and the method of constructing the same which comprises the steps of selecting a plurality of vertical round tubular steel posts, a plurality of horizontal rails of tubular steel and a plurality of cables of sufficient length to traverse the distance from the first end post around the intermediate posts and back to the second end post, each intermediate post having a series of eyes welded thereon, fitting the cables through all of the eyes on the intermediate posts and attaching an end of each cable to the first end post, attaching an opposite end of each cable to the second end post through a spring, inserting an end of a horizontal rail into an opening in the first end post and then adjusting the opposite end of the rail into an opening in the next adjacent intermediate post, continuing to insert horizontal rails in all of the intermediate posts until the rails are in abutting relation in all of the intermediate posts, inserting the ends of a horizontal rail in an opening in the second end post

Abstract: An interlocking steel fencing system having posts and rails made from tubular steel, the posts and rails being either round or rectangular in shape, the posts having openings therein which correspond with the shape of a rail designed to be inserted therein, the end posts being provided with openings only on one side thereof, while in-line posts are provided with openings parallel to one another and corner posts are provided with openings in ninety-degree relation to one another, the end posts and corner posts being provided with spacer bars therein with which the rails are firmly abutted during assembly, and these posts being further provided with a locking cap to prevent removal of the spacer bars, the fencing system designed to be assembled such that each rail abuts the adjacent rail at a central location within the post or, on an end or corner post, abuts a spacer bar within the post and wherein the post openings are slightly larger than the rails to allow the fencing system to traverse uneven topography.

Abstract: A fence structure made from steel rods approximately five eighths inch in diameter and having a tensile strength of about ninety thousand pounds, the fence structure comprising a plurality of horizontally extending and vertically spaced rods interconnected by a plurality of horizontally spaced vertical rods which are welded at their points of intersection to the horizontal rods.