Devices for supporting magnetic transducer heads on magnetic recording and reproducing machines

Claim 1

IN A RECORDING AND REPRODUCING MACHINE OF THE TYPE USING A RECORD MEDIUM HAVING A MAGNETIZABLE MATERIAL ON WHICH INTELLIGENCE IS RECORDABLE AND REPRODUCEABLE ALONG A SPIRAL PATH, A RECORDING AND REPRODUCING HEAD COMPRISING A TRANSDUCER, MEANS FOR MOVING SAID TRANSDUCER ALONG A SPIRAL PATH RELATIVE TO SAID RECORD MEDIUM, MAGNETIZABLE MATERIAL FOR RECORDING INTELLIGENCE ON SAID RECORD MEDIUM AND ALTERNATIVELY FOR REPRODUCING INTELLIGENCE RECORD ON SAID RECORD MEDIUM, SAID TRANSDUCER HEAD COMPRISING A SEAT FOR SAID TRANSDUCER, MEANS FOR ADJUSTING SAID HEAD ON SAID SEAT RELATIVE TO A REFERENCE MARK IN ASSEMBLING SAID HEAD AND FOR POSITIONING SAID HEAD AT A PREDETERMINED START POSITION RELATIVE TO SAID RECORD MEDIUM COMPRISING, A POSITIONING ARM FIXED TO SAID SEAT EXTENDING THEREFROM, SAID ARM HAVING A NOTCH FOR RELEASABLY RECEIVING A FIXED MEMBER THEREIN FOR HOLDING SAID SEAT IN A FIXED POSITION FOR ADJUSTING SAID TRANSDUCER IN SAID SEAT AT A DESIRED POSITION RELATIVE TO SAID REFERENCE MARK, AND MEANS FOR FIXING SAID TRANSDUCER HEAD IN SAID ADJUSTED POSITION IN SAID SEAT.