Combination stop and latch for multi-purpose appliance

Claim 1

A STOP-AND-LATCH MECHANISM FOR A MULTI-PURPOSE APPLIANCE HAVING MULTIPLE SECTIONS ADAPTED FOR MOVEMENT BETWEEN ALTENATIVE POSITIONS WHERE PAIRS OF SECTIONS ARE OVERLYING EACH OTHER, OR ARE SUBSTANTIALLY AT RIGHT ANGLES TO EACH OTHER, OR ARE IN SIDE-BY-SIDE COPLANAR POSITION, SAID STOP AND LATCH MECHANISM COMPRISING, IN COMBINATION, A PAIR OF APPLIANCE SECTIONS, A TWO-PART HINGE PROVIDING ONE HINGE PART SECURED TO A FIRST OF THE SECTIONS AND THE OTHER HINGE PART SLIDABLY ASSOCIATED WITH THE SECOND OF THE SECTIONS, AN OPENING IN THE SECOND SECTION ARRANGED TO BE SELECTIVELY BLOCKED OR UNBLOCKED BY THE OTHER HINGE PART, AN ELONGATED BRACE PLATE CARRIED BY THE FIRST SECTION AND HAVING A DISTAL END FOR INSERTION INTO SAID OPENING TO ENGAGE SAID OTHER HINGE PART TO DEFINE THE RIGHT ANGLE POSITION FOR SAID TWO-SECTION APPLIANCE, AND THE SELECTIVE MOVEMENT OF SAID OTHER HINGE PART TO UNBLOCK SAID OPENING PERMITTING INSERTION OF SUBSTANTIALLY THE ENTIRE BRACE THROUGH SAID OPENING TO DEFINE THE ALTERNATIVE COPLANAR POSITION FOR THE TWO SECTIONS OF THE APPLIANCE.