Window cleaning device

Claim 1

IN A WINDOW CLEANING DEVICE FOR OPERATIVE USE WITH A WINDOW STRUCTURE COMPRISING A FRAMEWORK AND INNER AND OUTER WINDOW MEMBERS SLIDABLY MOVABLE VERTICALLY RELATIVE TO THE SIDES OF SAID FRAMEWORK, SAID MEMBERS EACH HAVING ONE UPPER, ONE LOWER AND TWO LATERAL SASH SECTIONS SUPPORTING A PANE OF GLASS, THE COMBINATION OF A TRANSVERSE BAR ATTACHED TO THE OPPOSITE SIDES OF SAID FRAMEWORK ADJACENT THE MIDDLE OF ITS VERTICAL HEIGHT AND POSITIONED ADJACENT ONE OF SAID WINDOW MEMBERS, A WIPER MEMBER MOUNTED ON SAID BAR AND COMPRISING A HOLDER, A WIPER BLADE, A STRIP OF WATER-ABSORBING MATERIAL ADJACENT SAID BLADE, BOTH SAID BLADE AND STRIP BEING SUPPORTED BY SAID HOLDER AND HAVING EXTERIOR PORTIONS EXTENDING FROM SAID HOLDER AND POSITIONED FOR ENGAGEMENT WITH THE PANE OF SAID ADJACENT WINDOW MEMBER, A WATER-SUPPLY PIPE SUPPORTED BY SAID HOLDER AND HAVING APERTURED PORTIONS IN ENGAGEMENT WITH SAID STRIP, A WATER INLET PIPE PORTION COMMUNICATING WITH SAID PIPE AND EXTENDING UPWARDLY THROUGH SAID HOLDER, THE UPPERMOST PORTION THEREOF HAVING AN EXPOSED TERMINAL, AND YIELDABLE MEANS IN ENGAGEMENT WITH SAID HOLDER FOR YIELDABLY URGING SAID BLADE AND STRIP AGAINST SAID LAST-MENTIONED PANE, SAID BLADE BEING DISPOSED BELOW SAID STRIP, WHEREBY SAID BLADE WILL PREVENT DOWNWARD WATER SEEPAGE FROM SAID STRIP.