Automatic switch means for a magnetic tape reocrder

Claim 1

IN A TAPE RECORDER HAVING A MAGNETIC TAPE, AN ASSEMBLY OF TRANSDUCER AND ERASER HEADS, MEANS FOR MOVING THE TAPE LONGITUDINALLY ACROSS SAID ASSEMBLY OF HEADS, AN ELECTRIC DRIVING MOTOR FOR DRIVING SAID TAPE MOVING MEANS AND MANUALLY OPERABLE SWITCH MEANS FOR SWITCHING OFF SAID MOTOR; THE PROVISION FOR AUTOMATIC MEANS FOR SWITCHING OFF SAID MOTOR INDEPENDENTLY OF SAID MANUALLY OPERABLE SWITCH MEANS, SAID AUTOMATIC MEANS COMPRISING, AN ELECTRIC SWITCH TO BREAK THE CIRCUIT TO THE ELECTRIC MOTOR, A FIXED PLATE, SAID PLATE HAVING A NARROW SLOT FORMED THEREIN, A PIVOTED ARM, SPRING MEANS ACTING ON SAID PIVOTED ARM TO URGE THE SAME TOWARDS THE FIXED PLATE, A FINGER ARRANGED ON SAID PIVOTED ARM TO PASS THROUGH THE SLOT IN THE FIXED PLATE TO ACTUATE SAID ELECTRIC SWITCH TO SWITCH OFF THE ELECTRIC MOTOR WHEN SAID ARM IS PIVOTED BY SAID SPRING MEANS; THE TAPE, DURING NORMAL OPERATION OF THE APPARATUS, BEING PASSED ACROSS SAID SLOT IN SAID PLATE TO PREVENT PASSAGE OF SAID FINGER THERETHROUGH, SAID MANUAL SWITCH MEANS INCLUDING MEANS FOR MOVING SAID FINGER OUT OF SAID SLOT AFTER AUTOMATIC STOPPING OF SAID ELECTRIC MOTOR.