Tie rod seal for prefabricated wall forms

Claim 1

A collapsible form for composition walls comprising wall sections adapted to be supported in opposed, spaced relationship, said wall sections having confronting panels between which composition material may be cast, means for connecting said wall sections together including a tie rod extending between said wall sections through aligned openings in the panels thereof, and means for sealing the opening in one of said panels to prevent leakage of composition material including a tubular member formed of relatively rigid, though slightly deformable material and extending through said opening in said one panel and sleeved on said rod, said tubular member having an enlarged head on the inner end thereof disposed in the space between said panels and abutting the inner surface of said one panel in sealed relation around the opening thereof, and means threaded on the outer end of said tubular member to removably secure it to its panel, said tubular member having on its inner surface an annular radially inwardly projecting seal engaging said rod in sealed relation therewith.