US Patent 9145721 Door hinge

A door hinge has two hinge leaves joined together at a knuckle defining a hinge axis about which the leaves are relatively pivotal. Top and bottom sheet-metal parts forming a housing surround one of the hinge leaves. The top part is formed with a plurality of downwardly projecting side flaps each projecting toward and bearing on an upper face of the bottom part. Each side flap is formed with at least one downward projecting tab that extends past, is bent over, and bears upward against a bottom face of the bottom part. Two rotatable adjustment spindles are each journaled in the housing and threaded in the one leaf so that rotation of the spindles moves the one leaf in a first direction perpendicular to the hinge axis.