Cassette locking device

Claim 1

In combination with a storage cabinet of predetermined horizontal section provided at its bottom at two opposite sides with flanges extending along the sides and inwardly from the sides, said flanges being spaced downwardly from the bottom and parallel thereto, of a security mount for locking the storage cabinet to a table or countertop, said mount comprising a rigid base frame of corresponding horizontal section having sides coextensive with said two opposite sides of the cabinet, flanges along the two opposite sides of the base extending inwardly therefrom on which the flanges at the bottom of the cabinet are adapted to rest to support the cabinet on the base frame, said flanges on the base frame defining an opening at the top of the base frame beneath the bottom of the cabinet, flanges along the sides and ends of the base frame at the bottom thereof extending inwardly from the sides and ends, said flanges containing holes for receiving fastening means from inside the base frame into the supporting table or counter to bolt the base frame down, locking flanges mounted on the base frame in upwardly-spaced relation to the base flanges, said locking flanges defining along said side horizontal grooves for receiving the flanges at the bottom of the cabinet such that said locking flanges overlie the flanges at the bottom of the cabinet, one of said locking flanges being stationary and the other movable relative to the one to retract it from a locking position overlying the flange at the bottom of the cabinet at that side to a position withdrawn from said overlying position, said movable locking flange being mounted to the base frame on a bar supported transversely of the base frame for movement transversely of the base frame, and a lock mounted to a side of the base frame in a position of alignment with an end of the bar such that movement of the lock to a locking position moves the bar transversely within the base frame which, in turn, moves the movable locking flange into a position overlying the flange at the bottom of the cabinet at that side, said structure being such that all of said flanges are concealed within and between the bottom of the cabinet and the base frame and, hence, are inaccessible to disengagement except by destruction of the cabinet and/or base frame.