Sash window, particularly lowerable window for motor vehicles

Claim 1

A SLIDABLE WINDOW, PARTICULARLY LOWERABLE WINDOW IN MOTOR VEHICLES, WHICH IS GUIDED AND SUPPORTED IN RAILS PROVIDED WITH SEALS, COMPRISING SUPPORTING RAIL MEANS, SECTIONAL STRIP MEANS IN SAID RAIL MEANS, SEAL MEANS FOR SAID WINDOW AT SAID STRIP MEANS, SAID STRIP MEANS BEING MOVABLE WITH RESPECT TO SAID RAIL MEANS IN THE DIRECTION TOWARD A WINDOWPANE SURFACE, AND SPRING MEANS BETWEEN SAID RAIL MEANS AND SAID STRIP MEANS FOR PRESSING SAID SEAL MEANS AGAINST AT LEAST ONE SURFACE OF THE WINDOWPANE, SAID SECTIONAL STRIP MEANS BEIGN OF SUBSTANTIALLY ANGULARLY-SHAPED CROSS SECTION AND BEING ADAPTED FOR MOVEMENT IN THE DIRECTION TOWARD AT LEAST ONE OF THE END FACE AND SIDE SURFACES OF THE WINDOWPANE, TWO OF SAID ANGULARLY-SHAPED STRIP MEANS BEING SO ARRANGED WITHIN A RESPECTIVE RAIL MEANS THAT ONE SURFACE OF ONE SAID TWO STRIP MEANS OVERLAPS A SURFACE OF THE OTHER STRIP MEANS AND BOTH OF SAID STRIP MEANS FORM TOGETHER A SUBSTANTIALLY U-SHAPED STRUCTURE, THE LEG PORTION OF SAID U-SHAPED STRUCTURE BEING SUBJECT TO MOVEMENT TOWARD EACH OTHER UNDER THE INFLUENCE OF ONE OF SAID SPRING MEANS.