Wall or floor safe

Claim 1

A safe comprising: a. a hollow body member, b. a generally cylindrical open-ended barrel affixed to and providing access to said body member, c. a closure door insertable into and fixable in said barrel to lock said safe, said closure door comprising: 1. rigid, circular inner and outer plates coaxial with each other in axially spaced apart relation and insertable into said barrel coaxially therewith, 2. a generally cylindrical collar of resiliently compressible material carried coaxially between said plates and having a normal external diameter sufficiently small to enter said barrel, 3. operating means carried by said plates and operable to draw said plates closer together whereby said collar is axially compressed and radially expanded into tight frictional engagement with the interior wall of said barrel, 4. locking means operable to secure said operating means against unauthorized actuation, d. an internal peripheral flange fixed in said barrel, the diameter of said inner plate and the normal diameter of said collar being sufficiently small to pass through said flange, e. means limiting the insertion of said door into said barrel whereby said collar extends inwardly from said flange and said inner plate is spaced inwardly from said flange, and f. a plurality of locking bars attached to said collar at angularly spaced intervals about the periphery thereof, each of said locking bars constituting a rigid strut normally embedded in the external surface of said collar and extending generally parallel to the axis of the door, the inner end of each bar being engaged in a socket formed therefor in the outer face of said inner plate to permit radial pivotal movement of said bar, and the outer end of each of said bars terminating in spaced relation from the inner face of said flange, whereby as said collar is radially expanded, the outer ends of said bars are moved radially outwardly into opposed relation to the inner face of said flange.