Convertible suspension arrangement for sliding doors

Claim 1

A SUSPENSION ARRANGEMENT FOR SUPPORTING A SLIDING DOOR COMPRISING: A CARRIAGAE ADAPTED FOR TRANSPORTABLE RELOCATION IN A HORIZONTALLY DISPOSED GUIDE TRACK; DOOR HANGER MEANS INCLUDING AN UPRIGHT MEMBER SLIDABLY AND ROTATABLY ENGAGING SAID CARRIAGE; FIRST AND SECOND RELATIVELY ROTATABLE AND SELECTIVELY ENGAGEABLE ABUTMENT MEANS MOUNTED RESPECTIVELY ON SAID CARRIAGE AND ON SAID UPRIGHT MEMBER, AND RESILIENT MEANS ACTING BETWEEN THE CARRIAGE AND THE DOOR HANGER MEANS IN ONE RELATIVE POSITION OF ROTATION OF SAID UPRIGHT MEMBER DISENGAGING SAID ABUTMENT MEANS TO CUSHIONINGLY SUSPENDED THE DOOR HANGER MEANS FROM SAID CARRIAGE THROUGH SAID RESILEINT MEANS, SAID ABUTMENT MEANS BEING RELATIVELY ROTATABLE TO ANOTHER POSITION OF ROTATION INTERENGAGING SAID ABUTMENT MEANS TO LOCK SAID DOOR HANGER MEANS WITH RESPECT TO SAID CARRILAGE FOR RIGIDLY SUSPENDING SAND DOOR HANGER MEANS FROM SAID CARRIAGE INDEPENDENTLY OF SAID RESILIENT MEANS, ONE OF SAID SELECTIVELY ENGAGEABLE ABUTMENT MEANS HAVING A FIRST REGION OF PREDETERMINED MAJOR TRANSVERSE DIMENSION AND A SECOND REGION OF LESSER, MINOR TRANSVERSE DIMENSION, THE OTHER OF SAID SELECTIVELY ENGAGEABLE ABUTMENT MEANS HAVING OPPOSITE PORTIONS SPACED APART TO ADMIT SAID SECOND REGION THEREBETWEEN IN ONE POSITION OF RELATIVE ROTATION AND TO CONFRONT SAID FIRST REGION IN A SECOND POSITION OF RELATIVE ROTATION.