Suspension system for electromagnetic transducers

Claim 1

ELECTROMAGNETIC TRANSDUCER MOUNTING APPARATUS COMPRISING, (A) A SUPPORTING FRAME HAVING A RECTANGULAR APERTURE THEREIN, (B) A LOADING AND RETRACTING MEMBER PIVOTALLY MOUNTED FOR MOVEMENT TOWARD AND AWAY FROM SAID APERTURE, SAID RETRACTING MEMBER HAVING A PAIR OF ELONGATED SUBSTANTIALLY SPHERICAL OPENINGS THEREIN. (C) AN ELECTROMAGNETIC TRANSDUCER INCLUDING A PLURALITY OF READ-RECORD HEADS THEREON AND PROVIDED WITH A FORWARDLY PROJECTING AIR BEARING LEDGE EXTENDING THE LENGTH THEREOF, (D) A PAIR OF U-SHAPED LIFTER MEMBERS ADJUSTABLY DISPOSED INTERMEDIATE THE ENDS OF SAID TRANSDUCER AND INCLUDING MEANS FOR FRICTIONALLY SLIDABLY ENGAGING THE SPHERICAL OPENINGS IN SAID LOADING AND RETRACTING MEMBER PERMITTING SAID TRANSDUCER TO BE MOVED CONJOINTLY THEREWITH, (E) OPPOSITELY DISPOSED ROCKER ARMS ADJUSTABLY, PIVOTALLY MOUNTED INTERMEDIATE THEIR ENDS ADJACENT SAID SUPPORTING FRAME FOR ROCKING MOVEMENT RELATIVE TO SAID APERTURE, (F) BEARING MEANS ROCKABLY MOUNTING SAID TRANSDUCER BETWEEN ONE PAIR OF OPPOSITE ENDS OF SAID ROCKER ARMS, (G) A BROKEN LINK MECHANISM, SAID MECHANISM INCLUDING A HOLLOW THREADED MEMBER ENGAGING SAID LOADING AND RETRACTING MEMBER, AND A MEMBER TELESCOPICALLY, SLIDABLY, RECEIVABLE WITHIN SAID HOLLOW MEMBER, (H) SPRING MEANS BIASING SAID SLIDABLE MEMBER AWAY FROM SAID HOLLOW MEMBER, AND (I) BEARING MEANS INTERMEDIATE SAID SPRING MEANS AND SAID HOLLOW MEMBER PERMITTING SAID SLIDABLE MEMBER TO MOVE ANGULARLY RELATIVE TO SAID HOLLOW MEMBER CAUSING SAID SPRING MEANS TO BIAS SAID SLIDABLE MEMBER INTO OPERATIVE ENGAGEMENT WITH SAID ONE PAIR OF OPPOSITE ENDS OF SAID ROCKER ARMS EFFECTIVE THEREBY TO ADJUSTABLY POSITION SAID TRANSDUCER RELATIVE TO SAID MOUNTING MEANS AND TO A RECORD WITH WHICH IT MAY BE ASSOCIATED THEREBY TO MAINTAIN THE PRESCRIBED ADJUSTMENT WHEN SAID TRANSDUCER IS DISPOSED IN A RETRACTED POSITION RELATIVE TO SAID RECORD MEMBER AS WELL AS WHEN SAID TRANSDUCER IS DISPOSED IN OPERATIVE AIRBEARING RELATION RELATIVE TO SAID RECORD MEMBER.