Operating mechanism for an alternate pulling type control transmission device employing a pair of flexible wires

Claim 1

AN OPERATING MECHANISM FOR AN ALTERNATE PULLING TYPE CONTROL TRANSMISSION DEVICE COMPRISING A CYLINDRICAL CASING, A PAIR OF SHEATHS ADJUSTABLY FIXED IN A FIRST AND INNER END OF THE CYLINDRICAL CASING, AN ELONGATED OPERATING MEMBER AXIALLY SLIDABLE WITHIN THE CASING AND POSITIONED AT LEAST PARTIALLY WITHIN THE OTHER OR OUTER END OF SAID CASING, A PULLEY ROTATABLY SUPPORTED ON AN AXLE ATTACHED TO SAID CASING ADJACENT THE OUTER END THEREOF, SAID OPERATING MEMBER HAVING A PAIR OF LONGITUDINAL INTERNAL SLITS EXTENDING THERETHROUGH AND INTERSECTING AT RIGHT ANGLES TO EACH OTHER ADAPTED TO PERMIT SAID MEMBER TO SLIDE WITH RESPECT TO THE PULLEY AND ITS AXLE, THE FORWARD END OF SAID OPERATING MEMBER EXTENDING BEYOND SAID PULLEY AND THE INNER END OF SAID OPERATING MEMBER EXTENDING TO THE REAR OF SAID PULLEY, SAID OPERATING MEMBER INCLUDING A PAIR OF GROOVES LEADING FROM THE INNER END THEREOF ADJACENT THE ENDS OF THE RESPECTIVE SHEATHS TO SAID LONGITUDINAL SLITS, AT LEAST ONE FLEXIBLE WIRE EXTENDING THROUGH A FIRST OF SAID SHEATHS, THROUGH THE CORRESPONDING GROOVE OF THE INNER END OF SAID OPERATING MEMBER AND PARTIALLY AROUND SAID PULLEY, AND MEANS FOR ATTACHING SAID WIRE TO SAID INNER END OF THE OPERATING MEMBER ADJACENT ONE OF SAID GROOVES.