Walls

Claim 3

A wall element comprising a ring in the form of a short tube constructed and arranged so that a series of such rings can be erected side by side and one above the other to provide a wall capable of resisting overturning forces applied normally to the height of the wall, each ring being formed to provide filling retaining means positioned and arranged so that in use loose filling above each ring is retained by the filling retaining means at least when the filling has attained its natural angle of repose, the construction and arrangement being such that in use on said ring being arranged in association with other such rings, adjacent rings in a row are closely adjacent to or touch each other and rings in adjacent rows are stretcher bonded so that the contact points on any selected ring are radial lines separated by an approximately 60° arc of the face of the ring exposed to view when looking at a retaining wall and of the unexposed face of the ring which is pressed against the soil retained by the retaining wall, and the rings and the retaining filling means thereof coact to retain loose filling placed within the erected rings at least when the surface of the filling exposed to view in the completed wall has attained in natural angle of repose.

Claim 4

A wall element comprising a ring in the form of a short tube constructed and arranged so that a series of such rings can be erected side by side and one above the other to provide a wall capable of resisting overturning forces applied normally to the height of the wall, each ring being formed to provide filling retaining means positioned and arranged so that in use loose filling above each ring is retained by the filling retaining means at least when the filling has attained its natural angle of repose, the construction and arrangement being such that in use on said ring being arranged in association with other such rings, adjacent rings in a row are closely adjacent to or touch each other and rings in adjacent rows are stretcher bonded so that the contact points on any selected ring are radial lines separated by an approximately 60° arc of the face of the ring exposed to view when looking at a retaining wall and of the unexposed face of the ring which is pressed against the soil retained by the retaining wall, and the rings and the retaining filling means thereof coact to retain loose filling placed within the erected rings at least when the surface of the filling exposed to view in the completed wall has attained in natural angle of repose.

Claim 5

The wall element as claimed in claim 2 wherein said filling retaining means comprise proportioning said ring so that the wall height is between 0.83 to 1.33 times the thickness of the wall of the ring.

Claim 6

The wall element as claimed in claim 2 wherein said filling retaining means are provided by slots in one edge of said ring arranged so that there is an overlap of height of adjacent rings in use.

Claim 7

The wall element as claimed in claim 2 wherein said filling retaining means comprises merlons appended to a lower edge of said ring.

Claim 8

The wall element as claimed in claim 2 wherein said filling retaining means comprises arranging the profile of said ring in the form of an inverted frustum of a cone.

Claim 9

The wall element as claimed in claim 2 wherein said filling retaining means comprises forming the cross section of said ring to an inverted L shape.

Claim 10

The wall element as claimed in claim 2 wherein said filling retaining means comprises a floor in said ring in the form of a cusp so that when a plurality of such rings are positioned in stretcher bond retention of filling results.

Claim 11

The wall element as claimed in claim 2 wherein said filling retaining means comprises a disc floor to said ring.

Claim 12

The wall element as claimed in claim 2 wherein said filling retaining means comprises an angled baffle positioned in use on the side of the ring nearest to a viewer looking at the exposed surface of a finished wall.

Claim 13

The wall element as claimed in claim 2 wherein said filling retaining means comprises a plurality of slots.

Claim 14

The wall element as claimed in claim 2 wherein said filling retaining means comprises a metal ring, said filling retaining means being provided by slots in one edge of said ring.

Claim 15

A wall comprising a plurality of rings in the form of short tubes formed to provide filling retaining means said rings being arranged side by side in rows and with successive rows one above the other bonded to each other to resist forces applied normally to the height of the wall, the rings being arranged so that adjacent rings in a row are closely adjacent to or touch each other and rings in adjacent rows are stretcher bonded so that the rings and the filling retaining means coact to retain loose filling placed within the erected rings at least when the surfaces of the filling exposed to view in the completed wall has attained its natural angle of repose.

Claim 16

A wall comprising a plurality of rings in the form of short tubes formed to provide filling retaining means said rings being arranged side by side in rows and with successive rows one above the other bonded to each other to resist forces applied normally to the height of the wall, the rings being arranged so that adjacent rings in a row are closely adjacent to or touch each other and rings in adjacent rows are stretcher bonded so that the rings and the filling retaining means coact to retain loose filling placed within the erected rings at least when the surfaces of the filling exposed to view in the completed wall has attained its natural angle of repose.