Head and neck rest for automobile seat backs

Claim 1

A HEAD AND NECK REST COMPRISING TRANSVERSELY SPACED SUPPORTS HAVING PARTS ADAPTED TO HAVE CONTACT WITH THE FRONT AND BACK SIDES OF A SEAT BACK FRICTIONALLY TO HOLD THE SUPPORTS ERECT, A FLEXIBLE PART SECURED BETWEEN SAID SUPPORTS, SAID FLEXIBLE PART BEING ADPATED TO HAVE CONTACT WITH THE FRONT SIDE OF THE SEAT BACK BETWEEN SAID PARTS AND BEING OPERABLE BY REARWARD PRESSURE OF THE OCCUPANT TO INCREASE THE SECURITY OF SAID SUPPORTS, AN ELONGATE YIELDABLE CUSHION SUBSTANTIALLY CRESCENT-SHAPED IN CROSS-SECTION, MEANS SUPPORTING THE CUSHION BETWENE SAID SUPPORTS SOLELY AT ITS ENDS SO THAT THE PORTION OF THE CUSHION INTERMEDIATE THE ENDS IS DISPLACEABLE REARWARDLY RELATIVE TO THE SUPPORTED ENDS WITHOUT CONTACT WITH A FIXED PART OF THE STRUCTURE, SAID MEANS BEING ADJUSTABLE UPWARDLY AND DOWNWARDLY ON SAID SUPPORTS RELATIVE TO THE TOP OF THE SEAT BACK AND ANGULARLY FORWARDLY AND REARWARDLY ABOUT A HORIZONTAL AXIS PARALLEL TO THE LOWER EDGE OF THE CUSHION RELATIVE TO THE TOP OF THE SEAT BACK.