Reactor with horizontal control rod moving mechanisms

Claim 1

CONTROL ROD OPERATING MECHANISM FOR A REACTOR COMPRISING A CONTROL ROD, A RACK SECURED TO THE CONTROL ROD, A DRIVABLE GEAR MESHING WITH SAID RACK TO EFFECT LONGITUDINAL MOVEMENT OF THE CONTROL ROD, A DRIVE SHAFT FOR THE GEAR, MAGNETIC CLUTCH MEANS INCLUDING A MEMBER FIXED TO SAID SHAFT AND A MEMBER FREELY ROTATABLE THEREON, SAID TWO MEMBERS BEING MOVABLE INTO FRICTIONAL ENGAGEMENT BY ENERGIZATION OF THE MAGNETIC CLUTCH MEANS, A DRUM MEMBER SECURED TO THE FREELY ROTATABLE MEMBER, A RATCHET WHEEL SECURED TO SAID DRUM MEMBER, A BAND SECURED TO SAID DRUM MEMBER, A WEIGHT SUSPENDED FROM THE BAND, A PAWL NORMALLY BIASED INTO NON-ENGAGING POSITION WITH SAID RATCHET WHEEL, A BRAKE DRUM THREADEDLY ENGAGED WITH SAID FREELY ROTATABLE MEMBER AND DISPLACEABLE AXIALLY ALONG SAID SHAFT, A BRAKING MEMBER NORMALLY ENGAGED WITH SAID BRAKE DRUM, SOLENOID MEANS FOR MOVING THE PAWL INTO RATCHET ENGAGING POSITION AND THE BRAKING MEMBER INTO A RELEASE POSITION, A KEEPER MEMBER FIXED TO SAID SHAFT AND ENGAGEABLE WITH SAID BRAKE DRUM IN A DISPLACED POSITION OF THE LATTER OCCURING WHEN SAID PAWL RELEASES SAID RATCHET, WHEREBY ROTATION THEN IMPARTED TO SAID DRUM MEMBER BY THE UNWINDING OF SAID BAND BY SAID WEIGHT ROTATES SAID SHAFT AND SAID GEAR.