Rotary motion control apparatus and safety release

Claim 1

ROTARY MOTION CONTROL APPARATUS COMPRISING, IN COMBINATION, FRAME MEANS, A DISK STACK COMPRISING AT LEAST ONE STATIONARY DISK FIXED WITH RESPECT TO SAID FRAME MEANS AND AT LEAST ONE ROTATABLE DISK FREE FROM SAID FRAME MEANS FOR ROTATION WITH RESPECT TO SAID STATIONARY DISK, A MOUNTING PLATE SPACED FROM SAID FRAME MEANS, AN OPERATOR PLATE DISPOSED INTERMEDIATE SAID MOUNTING PLATE AND SAID FRAME MEANS, SAID OPERATOR PLATE HAVING A FIRST SURFACE FACING TOWARD SAID DISK STACK AND A SECOND SURFACE FACING AWAY FROM SAID DISK STACK, A PLURALITY OF MOUNTING MEANS EXTENDING FROM SAID FRAME MEANS TO SAID MOUNTING PLATE AND CONNECTING SAID MOUNTING PLATE TO SAID FRAME MEANS, A FIRST ONE OF SAID MOUNTING MEANS EXTENDING THROUGH SAID OPERATOR PLATE AND INCLUDING MEANS PROVIDING A PIVOTAL CONNECTION ABOUT WHICH SAID OPERATING PLATE ASSEMBLY IS MOVABLE TOWARD AND AWAY FROM SAID DISK STACK TO SET AND RELEASE SAID ROTATABLE DISK, AND MEANS PROVIDING SAID PIVOTAL CONNECTION COMPRISING A FIRST SEAT MEMBER SUPPORTED ON SAID FIRST MOUNTING MEANS AND ENGAGING SAID SECOND OPERATOR PLATE SURFACE AND SPRING MEANS ARRANGED ON SAID FIRST MOUNTING MEANS AND CONNECTED TO SAID FIRST OPERATOR PLATE SURFACE TO BIAS SAID OPERATOR PLATE INTO ENGAGEMENT WITH SAID SEAT MEMBER, A SECOND ONE OF SAID MOUNTING MEANS EXTENDING THROUGH SAID OPERATING PLATE AND SUPPORTING AN OPERATOR SPRING ASSEMBLY IN ENGAGEMENT WITH SAID SECOND OPERATING PLATE SURFACE AND BIASING SAID OPERATING PLATE TOWARD SAID DISK STACK TO SET SAID ROTATABLE DISK, SAID OPERATOR PLATE INCLUDING PRESSURE MEANS EXRENDING TOWARD AND ENGAGEABLE WITH SAID DISK STACK AND ARRANGED INTERMEDIATE SAID PIVOTAL CONNECTION AND SAID OPERATOR SPRING ASSEMBLY AND MAGNETIC MEANS, MAGNETIC MEANS ASSOCIATED WITH SAID OPERATOR PLATE AND OPERATIVE WHEN ACTIVATED TO MOVE SAID OPERATING PLATE ASSEMBLY AWAY FROM SAID DISK STACK, AND RELEASE MEANS OPERATIVELY CONNECTED TO SAID OPERATOR PLATE FOR SELECTIVELY MOVING SAID OPERATOR PLATE AWAY FROM SAID DISK STACK INDEPENDENTLY OF SAID MAGNETIC MEANS.