Sliding door hangers and door

Claim 1

IN COMBINATION, AN OVERHEAD LINEAR TYPE DOOR HANGER HORIZONTALLY SUSPENDED IN AN ENTRANCEWAY, SAID HANGER INCLUDING A MOVEABLE LONGITUDINAL TRACK OF RECTANGULAR CROSS-SECTION ADAPTED FOR SIDEWISE MOVEMENT IN SAID HANGER AND HAVING A LOWER PORTION DEPENDING FROM SAID HANGER, SAID LOWER PORTION HAVING TWO END PORTIONS FOR ATTACHMENT TO A VERTICALLY DISPOSED DOOR, ONE OF SAID ATTACHING END PORTIONS BEING IN THE FORM OF A DEPENDING TAIL BLOCK HAVING A BOLT RECEIVING APERTURE FORMED HORIZONTALLY THEREIN, THE OTHER OF SAID ATTACHING END PORTIONS HAVING FORMED THEREIN A RECESS OF PREDETERMINED INTERNAL CONFIGURATION ADAPTED FOR RECEIVING A HORIZONTALLY DISPOSED MEMBER OF COOPERATING EXTERNAL CONFIGURATION IN MALE AND FEMALE MATING ENGAGEMENT, A VERTICALLY DISPOSED DOOR HAVING A U-SHAPED CHANNEL FORMING ITS TOP EDGE SURFACE, A MATING MEMBER RIDIGLY SECURED IN SAID U-SHAPED CHANNEL ADJACENT A VERTICAL SIDE EDGE OF SAID DOOR, SAID MEMBER HAVING A HORIZONTALLY DISPOSED PORTION OF EXTERNAT CONFIGURATION ADAPTED FOR MATING FIT IN SAID RECESS, A FASTENING BLOCK SECURED TO SAID DOOR ADJACENT THE OTHER VERTICAL SIDE EDGE OF SAID DOOR, SAID FASTENING BLOCK HAVING A HORIZONTALLY DISPOSED AND THREADED BOLT RECEIVING APERTURE FORMED THEREIN, SAID LOWER PORTION OF SAID MOVABLE TRACK BEING DISPOSED RELATIVELY LOOSELY IN SAID USHAPED CHANNEL OF SAID DOOR WITH SAID TAIL BLOCK APERTURE IN ALIGNMENT WITH SAID FASTENING BLOCK APERTURE, AND A BOLT EXTENDING THROUGH SAID TAIL BLOCK APERTURE AND THREADED INTO SAID FASTENING BLOCK TO SECURE SAID DOOR TO SAID TAIL BLOCK AND FORCE THE RECESS FORMED END OF SAID LOWER CENTER TRACK PORTION INTO FRICTIONAL ENGAGEMENT WITH SAID MATING MEMBER, THEREBY SUSPENDING SAID DOOR FROM SAID MOVABLE TRACK FOR SIDEWISE MOVEMENT THEREWITH.