Reel lock

Claim 1

AN AUTOMATIC REEL LOCKING DEVICE FOR USE WITH A TRANSPORTING APPARATUS ADAPTED TO RECEIVE A REEL WHICH IS FORMED WITH A HUB HAVING A CENTRAL BORE ADAPTED TO FIT ON A SPINDLE AND PROVIDED WITH AT LEAST ONE AXIALLY EXTENDING GROOVE FORMED IN THE WALL OF SAID BORE, SAID DEVICE COMPRISING IN COMBINATION A SHAFT, SAID SHAFT HAVING ONE END ADAPTED TO BE FIXEDLY MOUNTED TO A SUPPORT PLATE, REEL SUPPORTING MEANS INCLUDING A SPINDLE ROTATABLY MOUNTED ON SAID SHAFT, MEANS TO LIMIT AXIAL MOVEMENT OF SAID SUPPORTING MEANS TOWARD THE SAID ONE END OF SAID SHAFT, SAID SPINDLE EXTENDING ALONG SAID SHAFT IN A DIRECTION AWAY FROM SAID ONE END OF SAID SHAFT AND TERMINATING WITH AN OUTER END PORTION, SAID SPINDLE HAVING AT LEAST ONE RADIAL PROJECTION ON ITS OUTER SURFACE ADAPTED TO FIT IN A SAID GROOVE OF A SAID REEL FOR DRIVING ENGAGEMENT THEREWITH, A SLEEVE JOURNALLED ON SAID SHAFT ADJACENT SAID OUTER END PORTION OF SAID SPINDLE AND BEING URGED TOWARD SAID SPINDLE, SAID SLEEVE HAVING AT LEAST ONE PROJECTION ON THE OUTER SURFACE OF SAID SLEEVE, THE OUTER END PORTION OF SAID SPINDLE AND THE OPPOSED END OF SAID SLEEVE BEING FORMED WITH COOPERATING CAMMING MEANS FOR POSITIONING SAID PROJECTIONS ON SAID SLEEVE AND ON SAID SPINDLE IN CIRCUMFERENTIAL SPACED RELATION WHEN SAID CAMMING MEANS ARE IN FULL CONTACT, AND BRAKE MEANS FOR SAID SLEEVE AFFORDING RELATIVE ROTATION BETWEEN SAID SLEEVE AND SAID SPINDLE WHEN SAID CAMMING MEANS ARE OUT OF FULL CONTACT SUCH THAT UPON ROTATION OF SAID SPINDLE RELATIVE TO SAID SLEEVE, SAID SLEEVE WILL MOVE AXIALLY TOWARD SAID SPINDLE PLACING SAID CAMMING MEANS IN FULL CONTACT TO SO POSITION THE PROJECTION ON SAID SLEEVE IN SAID SPACED RELATION TO THE PROJECTION ON SAID SPINDLE TO LOCK A REEL ON SAID SPINDLE.