Dual speed coaster hub

Claim 1

IN A DUAL SPEED HUB FOR BICYCLES AND THE LIKE INCLUDING A SHAFT HAVING AN AXIS, AND A HUB SHELL ROTATABLE ON SAID SHAFT IN A FORWARD AND A BACKWARD DIRECTION ABOUT SAID AXIS, IN COMBINATION: (A) A DRIVER MEMBER ROTATABLE ABOUT SAID AXIS IN TWO OPPOSITE DIRECTIONS; (B) GEARING INCLUDING A PLURALITY OF GEAR MEANS IN MESHING ENGAGEMENT FOR ROTATION AT DIFFERENT RESPECTIVE ANGULAR SPEEDS ABOUT RESPECTIVE AXES, SAID GEAR MEANS BEING SUBSTANTIALLY SECURED AGAINST MOVEMENT RELATIVE TO EACH OTHER IN THE DIRECTION OF THE RESPECTIVE AXES THEREOF; (C) COUPLING MEANS INTERPOSED BETWEEN SAID DRIVER MEMBER AND SAID GEARING; (D) MEANS FOR SHIFTING SAID COUPLING MEANS BETWEEN TWO POSITIONS IN WHICH SAID COUPLING MEANS SELECTIVELY COUPLES SAID DRIVER MEMBER TO TWO OF SAID GEAR MEANS RESPECTIVELY; (E) DRIVE RATCHET MEANS ROTATABLE ABOUT SAID AXIS AND INTERPOSED BETWEEN ONE OF SAID GEAR MEANS AND SAID HUB SHELL, SAID DRIVE RATCHET MEANS INCLUDING LOST MOTION MEANS FOR TRANSMITTING ROTARY MOVEMENT BETWEEN SAID ONE GEAR MEANS AND SAID HUB SHELL WITH A PREDETERMINED ANGULAR LOST MOTION OF SAID HUB SHELL ABOUT THE AXIS OF SAID SHAFT, SAID RATCHET MEANS TRANSMITTING MOVEMENT FROM SAID DRIVER MEMBER TO SAID HUB SHELL FOR FORWARD ROTATION OF THE LATTER WHEN SAID DRIVER MEMBER ROTATES IN ONE OF SAID OPPOSITE DIRECTIONS; (F) A BRAKE MEMBER ENGAGEABLE WITH SAID HUB SHELL FOR SECURING THE SAME AGAINST ROTATION RELATIVE TO SAID SHAFT; (G) A BRAKE ACTUATING MEMBER MOVABLE BETWEEN AN OPERATIVE POSITION IN WHICH SAID ACTUATING MEMBER URGES SAID BRAKE MEMBER INTO ENGAGEMENT WITH SAID HUB SHELL, AND AN INOPERATIVE POSITION; (H) MOTION TRANSMITTING MEANS FOR MOVING SAID BRAKE ACTUATING MEMBER FROM THE INOPERATIVE TOWARD THE OPERATIVE POSITION THEREOF WHEN SAID DRIVER MEMBER ROTATES IN THE OTHER ONE OF SAID OPPOSITE DIRECTIONS; AND (I) BRAKE RATCHET MEANS INCLUDING RATCHET WHEEL MEANS HAVING A PREDETERMINED PITCH, SAID BRAKE RATCHET MEANS BEING INTERPOSED BETWEEN SAID BRAKE ACTUATING MEMBER AND SAID HUB SHELL FOR MOVING SAID BRAKE ACTUATING MEMBER FROM THE OPERATIVE TO THE INOPERATIVE POSITION THEREOF WHEN SAID HUB SHELL ROTATES IN A BACKWARD DIRECTION WHILE SAID DRIVER MEMBER IS STATIONARY RELATIVE TO SAID SHAFT, THE ANGLE OF ROTATION OF SAID HUB SHELL CORRESPONDING TO SAID PREDETERMINED PITCH BEING SMALLER THAN THE ANGLE OF SAID PREDETERMINED ANGULAR MOTION.