Tape recorder drive

Claim 1

A MAGNETIC TAPE SOUND RECORDING AND REPRODUCING APPARATUS COMPRISING A ROTATABLE TAKE-OFF SPOOL; A ROTATABLE TAKE-ON SPOOL; FIRST AND SECOND PARELLEL SPINDLES; A TAKE-OFF SPOOL CARRIER MOUNTED UPON SAID FIRST SPINDLE AND ROTATING ABOUT THE AXIS THEREOF; A DISC MOUNTED UPON SAID SECOND SPINDLE AND ROTATING ABOUT THE AXIS THEREOF; A TAKEON SPOOL CARRIER MOUNTED UPON AND CO-AXIAL WITH SAID DISC; FRICTION SLIP COUPLING MEANS PROVIDING SLIP COUPLING BETWEEN SAID DISC AND SAID TAKE-ON SPOOL CARRIER; A CONSTANT SPEED DRIVE SPINDLE; A FRICTION WHEEL BETWEEN SAID CONSTANT SPEED DRIVE SPINDLE AND THE AXIS OF SAID DISC AND SAID TAKEON SPOOL CARRIER AND ROTATABLE ABOUT AN AXIS PARALLEL TO THE AXIS OF SAID DISC AND SAID TAKE-ON SPOOL CARRIER AND MOVABLE AXIALLY ALONG A FURTHER AXIS ALSO PARALLEL TO THE AXIS OF SAID DISC AND SAID TAKE-ON SPOOL CARRIER AND ROTATABLE BY ENGAGEMENT WITH THE SAID CONSTANT SAID SPEED DRIVE SPINDLE; AND CONTROL MEANS EFFECTING AXIAL MOVEMENT OF SAID FRICTION WHEEL BETWEEN A LOWERED POSITION IN THE PLANE OF TATION OF SAID DISC AND A RAISED POSITION IN THE PLANE OF ROTATION OF THE TAKE-ON SPOOL CARRIER MOUNTED ON SAID DISC AND EFFECTING DRIVING ENGAGEMENT BETWEEN THE CONSTANT SPEED DRIVE SPINDLE, SAID FRICTION WHEEL AND SAID DISC IN SAID LOWERED POSITION OF SAID FRICTION WHEEL AND BETWEEN SAID CONSTANT SPEED DRIVE SPINDLE, SAID FRICTION WHEEL AND SAID TAKE-ON SPOOL CARRIER IN THE SAID RAISED POSITION OF SAID FRICTION WHEEL.