Burglar proof safety hinge - prevents opening door after removing hinge pivot by corresponding projections and recesses of hinge halves

摘要

The safety hinge prevents opening a closed hinged door or window by force after removal of the hinge pivot. To this end the outer edge of each hinge half is provided with one or more projecting lips (A,B) which fit in corresponding recesses (A',B') in the outer edge of the other half when the door or window is closed.