Combination support frame and security means

Claim 1

In combination with a plumbing facility adapted to be mounted in confronting relation to an access opening in a structure fabricated of concrete, within which water supply and drain conduits for the facility are located, a frame cast into said concrete within the opening and comprising a plurality of frame elements arranged in end-to-end abutting relation and located around the periphery of said opening and a plurality of spaced security bars extending across said opening and supported at opposite ends thereof by said frame elements with some of said ends extending beyond said frame elements into said concrete for preventing unauthorized passage from one side of said structure to the opposite side thereof through said opening, at least one of said security bars including means for expanding said frame to assure contiguous engagement thereof with the periphery of said opening, said security bar comprising first and second end sections having confronting terminal end portions threaded with opposite hand thread forms, and wherein said expansion means comprises a sleevelike member having an internally threaded bore adapted for threadable engagement with said terminal end portions, whereby preselected rotational movement of said sleeve element will effect opposed movement of said bar sections to cause the associated frame to expand into contiguous engagement with the periphery of said opening, and means attached to said frame and protruding therefrom adapted to support part of said plumbing facility.