Dolly for handling doors and the like

Claim 1

A DOLLY FOR HANDLING DOORS AND THE LIKE, INCLUDING A BASE FRAME HAVING A REAR TRANSVERSE MEMBER AND SPACED APART ARM MEMBERS EXTENDING FORWARDLY OF SAID REAR TRANSVERSE MEMBER, A FRONT CASTER SUPPORTING THE FORWARD END OF EACH ARM MEMBER, A SINGLE CASTER FIXED UNDER A MIDPORTION OF THE REAR MEMBER TO COOPERATE WITH THE FIRST NAMED CASTERS TO PROVIDE A THREE POINT ROLLING SUPPORT FOR THE DOLLY, YOKES CARRIED ON FORWARD ENDS OF THE ARM MEMBERS, AN UPPER FRAME INCLUDING LATERALLY SPACED UPRIGHT MEMBERS HAVING FORWARDLY PROJECTING FOOT PORTIONS TO ENGAGE UNDER THE LOWER EDGE OF A DOOR, STILES EXTENDING ALONG THE UPRIGHTS FOR SEATING THE FACE SIDE OF A DOOR THEREON WHEN THE LOWER EDGE OF THE DOOR IS SUPPORTED ON SAID FOOT PORTIONS, MEANS FOR PIVOTING THE UPRIGHT MEMBERS IN SAID YOKES, PROP MEMBERS FIXED TO UPPER ENDS OF THE UPRIGHT MEMBERS, A TRANSVERSE MEMBER CONNECTING THE LOWER ENDS OF THE PROP MEMBERS AND SEATED ON SAID ARMS OF THE BASE FRAME AT A POINT TO THE REAR OF THE FRONT CASTER WHEELS TO SUPPORT SAID UPRIGHT MEMBERS IN A REARWARDLY INCLINED POSITION OVER THE BASE FRAME, AND MEANS ON THE PROP MEMBERS TO FACILITATE STEERING OF THE DOLLY AND PIVOTING OF THE UPRIGHT FRAME FORWARDLY TO MOVE THE DOOR INTO AN UPRIGHT POSITION, SAID REAR TRANSVERSE MEMBER PROVIDING FOOT-ENGAGING MEANS FOR A FOOT OF THE OPERATOR TO FACILITATE TILTING OF THE BASE FRAME UPON THE SINGLE REAR CASTER WHEEL AND ONE OF THE FRONT CASTER WHEELS TO RAISE ONE SIDE OF THE DOOR WHEN IN SAID UPRIGHT POSITION.