D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01H—SPINNING OR TWISTING
D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
D01H1/14—Details
D01H1/20—Driving or stopping arrangements
D01H1/28—Driving or stopping arrangements for two or more machine elements possessing different characteristics but in operative association
D01H1/30—Driving or stopping arrangements for two or more machine elements possessing different characteristics but in operative association with two or more speeds; with variable-speed arrangements
D01H1/305—Speed control of the spindles in response to the displacements of the ring rail