1. IN A MACHINE FOR FORMING A SUCCESSION OF EQUISPACED CLOSED LOOPS ON A WIRE, COMPRISING A SUPPORT, A SPINDLE ON SAID SUPPORT, ROTATABLE MOUNTING MEANS IN LINE WITH SAID SPINDLE FOR HOLDING A SUPPLY REEL FOR A WIRE TO BE LOOPED, A FIRST PIN, A SECOND PIN AND A THIRD PIN SPACEDLY POSITIONED PARALLEL TO ONE ANOTHER ALONG A PATH FOR SAID WIRE TRANSVERSE TO THE AXIS OF SAID SPINDLE, SAID FIRST PIN BEING COAXIAL WITH SAID SPINDLE, SAID SECOND PIN BEING DISPOSED BETWEEN SAID FIRST AND THIRD PINS AT A PREDETERMINED DISTANCE FROM SAID AXIS, FIRST HOLDER MEANS FOR SAID FIRST AND SECOND PINS DISPLACEABLE IN AXIAL DIRECTION OF SAID SPINDLE BETWEEN ONE POSITION IN WHICH SAID FIRST AND SECOND PINS ARE WITHDRAWN FROM SAID PATH, SECOND HOLDER MEANS FOR SAID THIRD PIN DISPLACEABLE IN AXIAL DIRECTION OF SAID SPINDLE BETWEEN ONE POSITION IN WHICH SAID THIRD PIN TRAVERSES SAID PATH AND ANOTHER POSITION IN WHICH SAID THIRD PIN IS WITHDRAWN FROM SAID PATH, A CARRIER CONNECTED WITH SAID SECOND HOLDER MEANS AND RECIPROCABLE ALONG SAID PATH TOGETHER WITH SAID THIRD PIN, CONTINUOUSLY OPERABLE DRIVE MEANS, COUPLING MEANS BETWEEN SAID DRIVE MEANS AND SAID SPINDLE FOR ENTRAINING THE LATTER THROUGH A FULL TURN ABOUT ITS AXIS TO FORM A LOOP OF WIRE DURING A FRACTION OF AN OPERATING CYCLE OF SAID DRIVE MEANS AND FOR MAINTAINING SAID SPINDLE STATIONARY AGAINST ROTATION DURING THE REMAINDER OF SAID CYCLE, AND TIMER MEANS CONTROLLED BY SAID DRIVE MEANS AND COUPLED WITH SAID FIRST AND SECOND HOLDER MEANS AND SAID CARRIER FOR SEQUENTIALLY PERFORMING THE FOLLOWING OPERATIONS IN THE COURSE OF SAID CYCLE: (1) DISPLACEMENT OF SAID FIRST HOLDER MEANS INTO SAID ONE POSITION THEREOF DURING STANDSTILL OF SAID SPINDLE, THEREBY INTRODUCING SAID SECOND PIN INTO A SECOND LOOP PREVIOUSLY FORMED IN SAID WIRE, SAID THIRD PIN BEING CONCURRENTLY MAINTAINED BY SAID CARRIER AT A LOCATION RELATIVELY REMOTE FROM SAID AXIS WITH SAID SECOND HOLDER MEANS IN SAID ONE POSITION THEREOF; (2) DISPLACEMENT OF SAID SECOND HOLDER MEANS INTO SAID OTHER POSITION THEREOF UPON BEGINNING ROTATION OF SAID SPINDLE; (3) MOVEMENT OF SAID CARRIER TO A LOCATION RELATIVELY CLOSE TO SAID AXIS AT WHICH SAID THIRD PIN IS ALIGNED WITH A THIRD LOOP FORMED IN SAID WIRE BEFORE SAID SECOND LOOP; (4) DISPLACEMENT OF SAID SECOND HOLDER MEANS INTO SAID ONE POSITION THEREOF FOR INTRODUCING SAID THIRD PIN INTO SAID THIRD LOOP; (5) DISPLACEMENT OF SAID FIRST HOLDER MEANS INTO SAID OTHER POSITION THEREOF UPON COMPLETION OF THE ROTATION OF SAID SPINDLE AND FORMATION OF A LOOP AROUND SAID FIRST PIN WHEREBY SAID FIRST AND SECOND PINS ARE WITHDRAWN FROM THEIR RESPECTIVE LOOPS; AND (6) ADVANCEMENT OF SAID CARRIER INTO SAID RELATIVELY REMOTE LOCATION WITH ENTRAINMENT OF SAID WIRE BY SAID THIRD PIN OVER A DISTANCE SUFFICIENT TO ALIGN SAID SECOND PIN WITH A LOOP FORMED EARLIER IN SAID WIRE, THE COMBINATION THEREWITH OF TRANSMISSION MEANS CONNECTING SAID DRIVE MEANS WITH SAID MOUNTING MEANS FOR CONTINUOUSLY ROTATING THE LATTER TOGETHER WITH SAID SUPPLY REEL ABOUT THE AXIS OF SAID SPINDLE, AND FEED MEANS OPERABLE AT THE BEGINNING OF EACH NEW CYCLE FOR DRAWING FROM SAID SUPPLY REEL A LENGTH OF SLACK WIRE SUFFICIENT TO PERMIT THE ADVANCEMENT OF SAID CARRIER INTO SAID RELATIVELY REMOTE LOCATION WITHOUT SUBSTANTIAL TENSIONING OF THE ENTRAINED WIRE.