Rack system for dishwashing machine

Claim 1

AN AUTOMATIC DISHWASHING MACHINE COMPRISING A TUB THAT IS OPENED AT THE TOP, A TOP COVER PIVOTALLY MOUNTED ADJACENT THE TOP BACK EDGE OF THE TUB AND SERVING WHEN IN A CLOSED POSITION TO SEAL THE TUB AND FORM A DISHWASHING COMPARTMENT, DISH-SUPPORTING RACK MEANS MOUNTED IN THE TUB ADJACENT THE MID-HEIGHT THEREOF, THE RACK MEANS BEING DIVIDED INTO AT LEAST TWO SECTIONS, THERE BEING A FRONT RACK SECTION AND A REAR RACK SECTION THAT SUBSTANTIALLY FILL THE AREA IN PLAN VIEW OF THE TUB, A PARALLELOGRAM LINKAGE SYSTEM SUPPORTING SAID FRONT SECTION FROM THE TUB AND COVER SO THAT WHEN THE COVER IS RAISED THE FRONT RACK SECTION RISES WITH THE COVER TO SUBSTANTIALLY OVERLIE THE REAR SECTION, SAID REAR SECTION BEING SUBSTANTIALLY STATIONARY WITH SAID TUB, SAID SYSTEM INCLUDING A SUPPORT RIGIDLY SECURED TO SAID COVER AND EXTENDING DOWN INTO PIVOTED ENGAGEMENT WITH SAID FRONT SECTION, THE SAID COVER AND SAID SUPPORT ACTING AS ONE LINK OF THE PARALLELOGRAM LINKAGE SYSTEM, SAID ONE LINK SLANTING DOWNWARDLY FROM THE PIVOTAL MOUNTING OF SAID COVER TO THE PIVOTED ENGAGEMENT OF SAID SUPPORT WITH SAID FRONT SECTION WHEN SAID COVER IS CLOSED SUFFICIENTLY TO