Automatic window washer and dryer for modern skyscrapers

Claim 1

IN A WINDOW WASHING APPARATUS FOR MODERN SKYSCRAPERS, THE COMBINATION OF A FRAME, MECHANISM CARRIED ON SAID FRAME FOR WASHING WINDOWS, MECHANISM CARRIED ON SAID FRAME FOR DRYING WINDOWS AND MEANS CARRIED ON SAID FRAME FOR WIPING SAID WINDOWS, THE FRAME COMPRISING A PAIR OF VERTICAL CORNER LEGS, A PAIR OF VERTICAL PLATES, A PLURALITY OF HORIZONTAL BARS RIGIDLY CONNECTED TO SAID VERTICAL LEGS AND PLATES, A CASTER WHEEL ON THE LOWER END OF EACH OF SAID LEGS AND PLATES, MEANS ON SAID FRAME FOR SLIDABLE MOVEMENT ALONG A BUILDING WALL, A PLURALITY OF BEARING BLOCK ASSEMBLIES SECURED TO EACH OF SAID PLATES FOR SUPPORTING SAID WINDOW WASHING MECHANISM AND SAID WINDOW DRYING MECHANISM, SAID WINDOW WASHING MECHANISM COMPRISING A HORIZONTAL WASHER ROLLER ASSEMBLY, SAID WASHER ROLLER ASSEMBLY COMPRISING A SHAFT SUPPORTED AT ITS OPPOSITE ENDS IN ONE OF SAID BEARING BLOCK ASSEMBLIES ON EACH OF SAID PLATES, A PLURALITY OF RADIALLY-EXTENDING BRISTLES ON SAID SHAFT, THE LOWERMOST ENDS OF THE LOWER OF SAID BRISTLES EXTENDING DOWNWARDLY INTO A WATER TANK MOUNTED BETWEEN SAID PLATES ON SAID FRAME, SAID WINDOW DRYING MECHANISM COMPRISING A HORIZONTAL DRYING ROLLER