Door hinge has washer on connecting pin with helical upper section which cooperates with similar section on base of upper hinge plate to raise door as it opens, washer being rotated to adjust hinge and fixed in desired position

摘要

The door hinge has upper (1) and lower (2) plates connected by a pin (3). A washer (4) is mounted on the pin with a helical upper section which cooperates with a similar section (5) on the base of the upper plate to raise the door as it opens. The washer can be rotated to adjust the hinge and fixed in the desired position.