Centering sleeve and overflow member assembly for masonry installations

Abstract

A centering sleeve and overflow member assembly adapted to facilitate installation of a bolt having a head and a shank extending therefrom in a hole drilled in masonry having a diameter greater than that of the shank to fasten a fixture to the masonry. The fixture has a mounting hole in alignment with the masonry hole in which is deposited a charge of a flowable uncured bonding agent. The overflow member which rests on the fixture has an opening therein in registration with the mounting hole and the sleeve which fits in the mounting hole telescopes into the upper end of the masonry hole. The sleeve is provided with centering means which when the shank is inserted through the sleeve into the masonry hole and the bolt head then lies adjacent the fixture, then acts to maintain the shank coaxial with the sleeve and with the bank of the masonry hole below the sleeve to define an inner passage between the shank and the sleeve and an annular space between the shank and the bank. When the shank enters the masonry hole and plunges into the charge, the flowable agent is caused to rise in the annular space and through the inner passage in the sleeve to overflow onto the member placed on the fixture. When the agent cures and solidifies, it then chemically anchors the shank in the masonry hole, the solidified agent collected on the overflow member being then discarded to provide a clean fixture surface.

Dependencies are inferred from the claim text.