Abstract: In a filing cabinet arrangement of vertically disposed drawers mounted on progressive two or three channel drawer slides an improved interlock or anti-tip mechanism is used. By means of a uniquely configured cam, the cabinet of drawers provides both an anti-tip mechanism as well as an anti-rebound quality which ensures that a drawer, once returned to the cabinet, does not rebound outwardly. In addition, this device will act as a security lock mechanism in conjunction with installed locking apparatus. The particular inventive features lie in the simplicity of the mechanism and in its space saving qualities. No additional space in a cabinet, other than that required for the drawers and the drawer slides, is necessary. The mechanism is economical, simple and worry free in its operation. It is adaptable to any file cabinet situation where two or three channel progressive drawer slides are used.

Abstract: A unique take-apart lock mechanism for use with drawer slides in cabinet and drawer arrangements is disclosed. The mechanism comprises a release lever, a butterfly catch and a pair of stop blocks. The butterfly catch and release lever are mounted within the drawer slide and the stop blocks mounted within the larger cabinet slide. By moving the release lever slideably within the inner channel, a pair of projections pull outwardly biased resilient wings of the butterfly catch inwardly, therefore allowing them to pass by the stop blocks, enabling the drawer to be removed from the cabinet. When the release lever is returned to its normal position, the drawer can be extended from the cabinet outwardly to a locked position thereby prohibiting it from being removed or accidentally falling.