Take-up mechanism and drive mechanism for sewing machines

Claim 1

IN A SEWING MACHINE HAVING A FRAME WITH AN OVERHANGING ARM WITH A HEAD PORTION AT ITS OUTER END, A DRIVE SHAFT JOURNALLED IN SAID ARM, A RECIPROCATORY NEEDLE BAR MOUNTED IN THE HEAD PORTION OF SAID ARM, A NEEDLE CARRIED BY SAID BAR, COMPLEMENTARY MEANS COOPERATING WITH SAID NEEDLE FOR PRODUCING A MULTIPLE THREAD STITCH, CONNECTIONS FROM SAID SHAFT FOR RECIPROCATING SAID NEEDLE BAR AND OPERATING SAID COMPLEMENTARY MEANS TO FORM A LINE OF STITCHING, MEANS FOR DIRECTING THREAD TO SAID NEEDLE, THREAD TAKE-UP MEANS IN THE PATH OF SAID THREAD FOR IMPARTING A TAKE-UP ACTION THERETO, CONNECTIONS FROM SAID SHAFT FOR OPERATING SAID THREAD TAKE-UP MEANS, THE COMBINATION WHICH COMPRISES A ROTARY MEMBER IN AT LEAST ONE OF SAID CONNECTIONS FROM SAID DRIVE SHAFT TO SAID NEEDLE BAR, SAID COMPLEMENTARY MEANS AND SAID THREAD TAKE-UP MEANS, SAID ROTARY MEMBER BEING MOUNTED FOR ROTATION IN A DIRECTION OPPOSITE TO THAT OF SAID SHAFT ABOUT AN AXIS REMOVED FROM BUT PARALLEL WITH THE AXIS OF SAID SHAFT, MEANS CARRIED BY SAID DRIVE SHAFT PROVIDING A FIRST CENTER OF MASS ECCENTRIC TO THE AXIS THEREOF, AND MEANS