rising hinge

rising hinge

[′rīz·iŋ ′hinj]
(building construction)
A hinge that raises a door slightly as it is opened.

rising hinge, rising butt hinge

A door hinge having a spiral groove winding about its knuckle, or having the joints of the knuckle oblique, so that when opened, the door is lifted and clears the carpet.
References in periodicals archive ?
Meanwhile, Roy Palmer, leading the building team, has been fixing a water supply to taps, and hanging doors on rising hinges.
You can even get rising hinges to give necessary clearance on steep driveways.