Magnetic tape recorders

Claim 1

IN A TAPE RECORDER OF THE TYPE SPECIFIED HAVING A CAPSTAN SPINDLE AND CO-OPERATING PINCH ROLLER BETWEEN WHICH THE TAPE IS ENGAGED, A CAPSTAN DISC FIXED TO THE CAPSTAN SPINDLE, AN ELECTRIC DRIVING MOTOR SPINDLE HAVING THEREON A NUMBER OF DIFFERENT DIAMERTER DRIVE PULLEYS AND A JOCKEY PULLEY, THE JOCKEY PULLEY BEING SELECTIVELY ENGAGEABLE WITH ONE OR ANOTHER OF SAID DRIVE PULLEYS AND ALSO ENGAGEABLE WITH SAID CAPSTAN DISC; THE ARRANGEMENT COMPRISING A SWINGING ARM FIXED UPON A VERTICAL SPINDLE FOR PIVOTED MOVEMENT ABOUT THE AXIS, THEREOF, SPRING MEANS URGING SAID SPINDLE UPWARDLY, A TWO-ARM LEVER PIVOTALLY MOUNTED ABOUT THE JUNCTION OF ITS TWO ARMS AT THE ONE END OF SAID SWINGING ARM, THE JOCKEY PULLEY BEING MOUNTED ON ONE OF SAID ARMS, A SPRING CONNECTED AT ITS ONE END TO THE OTHER ONE OF SAID TWO ARMS AND AT ITS OTHER END TO A FIXED POINT, AND URGING THE JOCKEY PULLEY BEING MOUNTED WITH THE CAPSTAN DISC, AND A CAM HAVING TWO PROFILES ENGAGED BY SAID SWINGING ARM, ONE PROFILE CAUSING SWINGING MOVEMENT OF SAID ARM TO DISENGAGE THE JOCKEY PULLEY FROM THE DRIVING MOTOR SPINDLE AND THE OTHER PROFILE CAUSING VERTICAL MOVEMENT OF THE SWINGING ARM TO SHIFT THE JOCKEY PULLEY IN THE AXIAL DIRECTION.