Window lift gear

Claim 1

A YIELDABLE COUPLING FOR USE IN CONJUNCTION WITH A WINDOW LIFT GEAR OR THE LIKE OPERABLE TO AUTOMATICALLY RAISE AND LOWER A WINDOW IN RESPONSE TO OPERATION OF A REVERSIBLE ELECTRIC MOTOR COMPRISING A SHAFT HAVING A BEARING STUB AT EACH END THEREOF AND INCLUDING A PINION PORTION ADJACENT ONE END, A CENTRALLY LOCATED BEARING PORTION AND A REDUCED DIAMETER SPLINED OTHER END PORTION SAID PINION PORTION OF SAID SHAFT BEING ADAPTED TO MESH WITH THE WINDOW LIFT GEAR, A WORM GEAR ROTATABLY MOUNTED ON THE CENTRAL PORTION OF SAID SHAFT ADAPTED TO BE DRIVEN IN OPPOSITE DIRECTIONS BY THE REVERSIBLE ELECTRIC MOTOR INCLUDING A FIRST RECESS IN ONE SIDE THEREOF HAVING A BOTTOM FORMED BY A PORTION OF SAID WORM GEAR AND AN ANNULAR RECESS IN THE PORTION OF THE GEAR FORMING THE BOTTOM OF SAID FIRST RECESS INCLUDING ALTERNATE ANGULARLY SPACED APART LARGE AND SMALL PORTIONS, AN ANNULAR PLATE INCLUDING INTERNAL SPLINES SLEEVED OVER AND SPLINED TO THE OTHER END OF SAID SHAFT IS POSITIONED WITHIN SAID RECESS AND INCLUDES TABS EXTENDING FROM ONE SIDE THEREOF INTO THE SMALL PORTIONS OF SAID ANNULAR RECESS AND COIL SPRINGS POSITIONED WITH IN THE LARGE PORTIONS OF THE ANNULAR RECESS ABUTTED AGAINST THE OPPOSITE ENDS OF SAID LARGE PORTIONS FOR PRODUCING ROTATION OF SAID PLATE AND SHAFT ON ROTATION OF SAID WORM GEAR, AND MEANS FOR ROTATABLY SUPPORTING THE BEARING STUBS AT THE OPPOSITE ENDS OF SAID SHAFT.