Electric shifting arrangement for change-speed gears

Claim 1

AN ELECTRIC SHIFTING AND CLUTCH ACTUATING MECHANISM FOR A CHANGE-SPEED TRANSMISSION DRIVEN BY A CLUTCH COORDINATED THERETO, ESPECIALLY FOR MOTOR VEHICLES, COMPRISING SHIFTING MEANS FOR SAID TRANSMISSION, ROTATABLE GUIDE MEANS WITHIN SAID TRANSMISSION FOR GUIDING SAID SHIFTING MEANS, CLUTCH DISENGAGING MEANS, ELECTRIC DRIVE MEANS INCLUDING AN ELECTRIC MOTOR OPERATIVELY CONNECTED WITH SPEED REDUCTION GEAR MEANS AND SLIP-CLUTCH MEANS FOR DRIVING SAID GUIDE MEANS FROM SAID ELECTRIC MOTOR IN EITHER DIRECTION OF ROTATION THEREOF, CONTROL MEANS FOR PRODUCING ELECTRIC SHIFTING PULSES, SAID GUIDE MEANS BEING PROVIDED ALONG THE PERIPHERY THEREOF WITH A NUMBER OF NOTCHES CORRESPONDING TO THE INDIVIDUAL SHIFTING POSITIONS, LATCH MEANS ADAPTED TO ENGAGE IN A NOTCH WHEN PROPERLY POSITIONED THEREBELOW, ELECTROMAGNETIC MEANS INCLUDED IN SAID CONTROL MEAN S FOR SELECTIVELY ACTUATING SAID LATCH MEANS IN THE ENGAGEMENT ND DISENGAGEMENT THEREOF IN DEPENDENCE ON SAID SHIFTING PULSES, AND MEANS OPERATIVELY CONNECTING SAID CLUTCH DISENGAGING MEANS WITH SAID ELECTRIC DRIVE MEANS IN BY-PASSING RELATIONSHIP WITH RESPECT TO SAID SLIP-CLUTCH MEANS FOR INITIALLY DISENGAGING SAID CLUTCH DISENGAGING MEANS IN RESPONSE TO ONE OF SAID SHIFTING PULSES AND FOR RETAINING SAID CLUTCH DISENGAGING MEANS IN THE POSITION THEREOF CORRESPONDING TO THE DISENGAGED POSITION OF THE CLUTCH UNTIL THE NEXT SPEED IS ENGAGED BY ROTATION OF SAID GUIDE MEANS.