Yarn furnishing device

Claim 1

A YARN FURNISHING DEVICE FOR A KNITTING MACHINE SUPPORTED BY THE FRAMEWORK OF SAID MACHINE COMPRISING A ROTATABLE SHAFT AND A CONTROL SHAFT, FRAME MEMBERS SUPPORTING SAID CONTROL SHAFT AND PERMITTING AXIAL MOVEMENT THEREOF, AN AUXILIARY PIVOT ARM AT ONE ROTATABLE SHAFT END AND A MAIN PIVOT ARM CENTRALLY POSITIONED SUPPORTING SAID ROTATABLE SHAFT AND INCLUSING BEARINGS WITHIN WHICH SAID ROTATABLE SHAFT ROTATES, A ROLLER FIXED TO SAID ROTATABLE SHAFT INTERMEDIATE SAID PIVOT ARMS, SAID PIVOT ARMS INCLUDING UPWARDLY PROJECTING PORTIONS SLOTTED TO GUIDE THE SPINDLE OF A WOUND CYLINDRICAL YARN PACKAGE WHEREBY THE PACKAGE IS GUIDED INTO AXIALLY PARALLEL RELATIONSHIP AND FRICTIONALLY ROTATABLE SURFACE ENGAGEMENT WITH SAID ROLLER, ROTATION OF SAID ROLLER IN PROPER DIRECTION CAUSING ROTATION OF SUCH A YARN PACKAGE SO DISPOSED TO UNROLL YARN FROM SAID PACKAGE, A CAPSTAN ATTACHED TO SAID SHAFT AT THE FREE END THEREOF AND A FRICTION WHEEL INTERMEDIATE SAID CAPSTAN AND SAID MAIN PIVOT ARM, SAID ROTATABLE SHAFT, ROLLER, FRICTION WHEEL AND CAPSTAN HAVING A COMMON AXIS AND TURNING AS A UNIT AND BEING MOVABLE AXIALLY OF SAID ROTATABLE SHAFT AS SAID PIVOT ARMS SO MOVE AND BEING MOVED ARCUATELY AS SAID PIVOT ARMS PIVOT ABOUT SAID CONTROL SHAFT, A MAIN BEVEL GEAR TURNING AT CONSTANT SPEED ON THE SELECTOR DRUM SHAFT, A SECOND BEVEL GEAR MESHING WITH SAID MAIN BEVEL GEAR, A TURNTABLE POSITIONED WITH ITS AXIS INTERSECTING THE AXIS OF THE ROTATABLE SHAFT AT RIGHT ANGLES AND WITH ITS FLAT SURFACE IN FRICTIONAL ENGAGEMENT WITH THE EDGE PORTION OF SAID FRICTION WHEEL, SAID TURNTABLE DRIVING SAID FRICTION WHEEL AND SAID ROTATABLE SHAFT AT ANGULAR SPEEDS INCREASING AS SAID FRICTION WHEEL IS POSITIONED PROGRESSIVELY OUTWARDLY FROM THE CENTER OF SAID TURNTABLE, A PROJECTING LUG CARRIED BY SAID MAIN BEVEL GEAR, AN ADJUSTABLE CAMMING SURFACE INCLUDING INDIVIDUAL ADJUSTABLE CAM PORTIONS, A RATCHET WHEEL FIXED TO TURN WITH SAID CAMMING SURFACE, A PAWL INTERMITTENTLY TURNING SAID RATCHET WHEEL WHEN ACTUATED AND HENCE SAID CAMMING SURFACE, A LINKAGE INCLUDING SAID PAWL ACTUATED FROM A NEUTRAL POSITION BY SAID LUG ON EACH REVOLUTION AS SAID LUG REVOLVES, A SECOND PAWL ENGAGING SAID RATCHET WHEEL TO PREVENT REVERSE ROTATION THEREOF, SPRING MEANS RETURNING SAID LINKAGE TO NEUTRAL POSITION, A CONTROL WIRE, A CRANK MEMBER PIVOTED AT ONE END AND FASTENED TO SAID CONTROL WIRE AT THE OTHER, A CAM RIDER PLATE FIXED TO A CENTRAL PORTION OF SAID CRANK MEMBER AND ENGAGING SAID INDIVIDUAL CAM PORTIONS IN SUCCESSION AS SAID CAMMING SURFACE MOVES INTERMITTENTLY, SAID CONTROL WIRE BEING FASTENED AT ITS OTHER END TO SAID MAIN PIVOT ARM AND BEING GUIDED IN ITS SHEATH, SAID CONTROL WIRE WHEN SAID CAM RIDER PLATE LOWERS PULLING SAID MAIN PIVOT ARM AND SAID CONTROL SHAFT AXIALLY OF THE LATTER, A SPRING SURROUNDING SAID CONTROL SHAFT AND COMPRESSED BETWEEN A CONTROL SHAFT END STOP AND A FRAME MEMBER WHEN SAID CAM RIDER PLATE LOWERS AND PULLING SAID CONTROL SHAFT AXIALLY IN THE OPPOSITE DIRECTION AS LIMITED BY SAID CONTROL WIRE WHEN SAID CAM RIDER PLATE RISES, THUS CAUSING SAID FRICTION WHEEL TO BE POSITIONED ON SAID TURNTABLE IN ACCORDANCE WITH THE ADJUSTMENTS MADE IN SAID ADJUSTABLE CAMMING SURFACE AND HENCE CONTROLLING THE SPEED OF UNROLLING YARN FROM SAID YARN PACKAGE, SAID CAPSTAN INCLUDING A PLURALITY OF INDIVIDUALLY THREADED GUIDE ROLLERS EACH TURNING ON ITS AXIS IN THE ROTATIONAL DIRECTION OF THE ROTATABLE SHAFT, THE OUTWARDLY FACING SURFACES OF THE THREADED GUIDE ROLLERS FORMING CONTACT SURFACES WITH THE YARN UNROLLED FROM THE YARN PACKAGE AND WOUND IN A PLURALITY OF CONVOLUTIONS THEREAROUND PRIOR TO BEING DRAWN TO THE KNITTING NEEDLES, A SECOND CONTROL WIRE ACTUATED BY CAMMING MEANS OF THE MAIN DRUM, AN ECCENTRIC SHAFT UNDERLYING AND IN CONTACT WITH SAID MAIN PIVOT ARM AND TURNING IN BEARINGS IN THE FRAME MEMBERS SUPPORTINF SAID CONTROL SHAFT, A LEVER ARM FIXED TO SAID ECCENTRIC SHAFT AND FASTENED TO SAID SECOND CONTROL WIRE, MOVEMENT OF SAID SECOND CONTROL WIRE IN ONE DIRECTION ROTATING SAID LEVER ARM AND SAID ECCENTRIC SHAFT TO RAISE SAID MAIN PIVOT ARM DEACTIVATING SAID YARN FURNISHER, A LEVER ARM SPRING COMPRESSED BY SAID SECOND CONTROL WIRE IN RAISING SAID MAIN PIVOT ARM, REVERSE MOVEMENT OF SAID CONTROL WIRE CAUSING SAID LEVER ARM SPRING TO EXPAND AND SAID PIVOT ARM TO LOWER ACTIVATING SAID YARN FURNISHER.