Structural connection between rotatable parts

Claim 1

IN A PROPELLER BLADE ASSEMBLY FOR A HELICOPTER-LIKE VEHICLE HAVING A PROPULSION DRIVE UNIT INCLUDING A BASE PORTION AND A PROPELLER BLADE MEANS, SAID BLADE MEANS HAVING AN INNER AND AN OUTER END WITH RESPECT TO SAID VEHICLE AND SAID PROPULSION DRIVE UNIT BASE PORTION BEING SECURED ON THE OUTER END OF SAID BLADE MEAND, THE IMPROVEMENT ESSENTIALLY CONSISTING OF AN IMPROVED CONNECTING MEANS FOR CONNECTING SAID PROPULSION DRIVE UNIT TO SAID OUTER END OF THE BLADE MEANS AND FOR SUSPENDING SAID PROPULSION DRIVE UNIT RADIALLY TO ABSORB THE HIGH STRESSES AND LOADS ON THE CONNECTING MEANS OCCURING DURING OPERATION OF THE PROPULSION DRIVE UNIT, SAID CONNECTING MEANS COMPRISING MEANS FOR CLAMPING THE BASE PORTION OF SAID DRIVE UNIT AGAINST THE OUTER END OF SAID BLADE MEANS UNDER COMPRESSION TO ABSORB THE CENTRIFUGAL FORCES OF THE DRIVE UNIT AND BLADE MEANS INCLUDING CABLE MEANS EXTENDING SUBSTANTIALLY IN THE LONGITUDINAL DIRECTION OF AND OVER THE ENTIRE LENGTH OF SAID BLADE MEANS AND ON THE INSIDE THEREOF, ADJUSTABLE TENSIONING MEAND ADJUSTINGLY CONNECTING SAID CABLE MEANS WITH THE ROOT OF SAID BLADE MEANS, AND RECTILINERR GUIDE MEANS BETWEEN SAID BASE PORTION AND SAID OUTER END OF THE BLADE MEANS INCLUDING A BASE MEMBER PROVIDED ON SAID PROPULSION DRIVE UNIT AND HAVING APERTURE MEANS EXTENDING SUBSTANTIALLY IN THE LONGITUDINAL DIRECTION OF SAID BLADE MEANS, AND A HEAD PIECE DISPOSED IN THE OUTER END OF SAID BLADE MEANS, SAID HEAD PIECE HAVING COMPLEMENTARY PIN MEANS THEREON GUIDED WITHIN SAID APERTURE MEANS IN THE ASSEMBLED CONDITION OF SAID CONNECTING MEANS, SAID CABLE MEANS BEING SECURED TO SAID BASE MEMBER.