Paper supply tray

Claim 1

A PAPER SUPPLY TRAY INCLUDING A BASE MEMBER HAVING A DEPRESSED CHANNEL PORTION EXTENDING LONGITUDINALLY THEREOF, PLATE MEANS SECURED TO SAID BASE MEMBER WITH A PORTION OF SAID PLATE MEANS PARTIALLY EXTENDING OVER SAID DEPRESSED CHANNEL PORTION TO FORM A SLOT. A BACK GUIDE MEMBER HAVING AN EXTENSION LEG PORTION OVERLYING SAID SLOT AND ADAPTED TO SLIDE ON SAID PLATE MEANS AND AN UPRIGHT LEG PORTION EXTENDING LATERALLY ACROSS SAID PLATE MEANS, CENTERING AND FRICTION MEANS CONNECTED TO THE UNDERSIDE OF SAID EXTENSION LEG PORTION AND EXTENDING THROUGH SAID SLOT INTO SAID DEPRESSED CHANNEL PORTION TO ADJUSTABLY POSITION SAID BACK GUIDE MEMBER ON SAID PLATE MEANS, A PAIR OF MARGIN GUIDES FORMED COMPLEMENTARY TO EACH OTHER ADJUSTABLY MOUNTED ON SAID BACK GUIDE MEMBER ON OPPOSITE SIDES OF SAID SLOT, EACH OF SAID MARGIN GUIDES INCLUDING AN UPSTANDING REAR LEG ADJUSTABLY SECURED TO SAID BACK GUIDE, AN UPSTANDING SIDE LEG EXTENDING AT RIGHT ANGLES TO SAID BACK GUIDE TO ALIGN THE SIDE MARGINS OF A STACK, AND A PAPER SUPPORT LEG EXTENDING INWARDLY TOWARD SAID SLOT, SAID PAPER SUPPORT LEG BEING ADAPTED TO SLIDE ON SAID PLATE MEANS, SAID PAPER SUPPORT LEGS OF SAID MARGIN GUIDES AND SAID EXTENSION LEG PORTION OF SAID BACK GUIDE MEMBER BEING ADAPTED TO SUPPORT THE REAR AND REAR SIDE PORTION OF A STACK OF PAPER; A PRESSURE PAD SECURED TO THE UPSTANDING SIDE LEG OF EACH OF SAID MARGIN GUIDES TO YIELDINGLY GUIDE TO THE SIDE MARGIN OF A STACK PAPER ON SAID PLATE MEANS AND SAID PAPER SUPPORT LEGS, AND FRICTION PADS SECURED TO SAID BASE MEANS AT THE FRONT THEREOF AND ON OPPOSITE SIDES OF SAID SLOT TO YIELDINGLY HOLD A STACK OF PAPER ON SAID BASE MEANS.