The construction of the revolving ring is shown in Fig. 2. C is the
revolving ring; D, the hollow axis support; H, a section of the ring
frame; E, the traveler.

To give the required variable speed to the revolving ring there is
placed directly over the drum, Fig. 1, A, for driving the spindle a
smaller drum, B, from which bands drive each ring separately. The shaft,
which is attached by cross girts to the ring rail, and moves up and down
with it, is driven by a pair of conical drums from the main cylinder
shaft; and is so arranged with a loose pulley on the large end of the
receiving cone as to remain stationary while the wind is on or near the
base of the bobbin. When the cone of the bobbin diminishes so as to
materially increase the pull on the traveler, the conical drums are
started by a belt shipper attached to the lilt motion. By the movement
of the belt on these drums a continually accelerated motion is given to
the rings, their maximum speed being about one-twentieth the number
of revolutions per minute as the spindle has at the same moment. This
action is reversed when the lift falls. The tension of the wind upon
the bobbin is thus kept uniform, the desired hardness of the wind being
secured by the use of a heavier or lighter traveler according to the
compactness of cop required.

The model frame shown at the fair did its work admirably well, spinning
yarns as high as No. 400, a fineness hitherto unattainable on ring
frames. It is claimed that this invention can do whatever can be done
with the mule, and without the skilled labor which mule spinning
demands.

This invention is exhibited by E. & A. W. Harris, Providence, R.I.