Apparatus for the manufacture of variable denier yarn

Claim 1

A GEAR PUMP FOR PRODUCING VARIABLE DENIER YARN COMPRISING, A HOUSING HAVING INLET AND OUTLET PORTS, A PUMPING CHAMBER IN THE HOUSING, A PAIR OF INTERMESHING EXTERNALLY TOOTHED PUMPING GEARS IN CONTINUOUS TOOTH REGISTERING PERIPHERAL CONTACT POSITIONED IN THE CHAMBER AND BEING ADAPTED TO RECEIVE A YARN FORMING SOLUTION FROM SAID INLET AND FORWARD IT THROUGH SAID HOUSING OUTLET PORT, AND ONE OF SAID GEARS HAVING AT LEAST TWO UNEVENLY CIRCUMFERENTIALLY SPACED APART CUT-AWAY PORTIONS IN THE GEAR CIRCUMFERENCE WHERE NONE WOULD BE DIAMETRICALLY OPPOSITE THE OTHER AND EXTENDING CIRCUMFERENTIALLY THROUGH AT LEAST ONE TOOTH BUT LESS THAN THROUGH ALL INTERVENING TEETH BETWEEN THE CUT-AWAY PORTIONS, LEAVING SUFFICIENT WHOLE TOOTH DEPTH IN THE CUT-AWAY PORTIONS FOR CONTINUOUS TOOTH REGISTRATION, THE CUT-AWAY PORTIONS PERMITTING THE BY-PASS OF ADDITIONAL AMOUNTS OF A YARN FORMING SOLUTION TO THE NORMAL FLOW FORWARDED BY SAID GEARS.