Head positioner for a magnetic data storage device

Claim 1

IN A SYSTEM FOR POSITIONING A MAGNETTIC PRODUCER HEAD AT VARIOUS PRESELECTED POSITIONS ALONG A RECTILINEAR PATH OVER A MAGNETIC INFORMATION STORAGE SURFACE A HEAD SUPPORT, A PLURALITY OF INDEPENDENTLY MOVABLE LINEAR MOVEMENT DETERMINING DEVICES, EACH OF SAID DEVICES INCLUDING GEAR MEANS INTERMESHING WITH GEAR MEANS ON THE NEXT ADJACENT DEVICE IN ACCORDANCE WITH THE STEPS OF A PROGRESSIVE SERIES TO ADD TO THE RESPECTIVE MOVEMENTS OF SAID DEVICES, SAID GEAR MEANS HAVING A GEAR RATIO FOR PRODUCING A TRANSFER OF A PREDETERMINED PORTION OF MOVEMENT OF ANY ONE OF SAID DEVICES TO THE NEXT SUCCEEDING DEVICE IN THE SERIES, SAID HEAD SUPPORT BEING OPERATIVELY CONNECTED TO THE LAST SAID DEVICE IN THE SERIES OF MOVEMENT THEREBY ALONG A RECTILINEAR PATH, DRIVE MEANS ADDITIONAL TO SAID DEVICES FOR CAUSING SAID SERIES MOVEMENT, SAID DRIVE MEANS FOR MOVING SAID DEVICES SINGLY OR IN ANY SELECTED COMBINATION, AND SAID DRIVE MEANS INCLUDING ACTUATORS EACH MOVABLE ABOUT AN AXIS GENERALLY PERPENDICULAR TO SAID RECTILINEAR PATH.