IMPROVE- MENTS IN FLYERS FOR SPINNING
Year: 1877

page_text: LETTERS PATENT to Edward Alfred Cowper, of No. 6, Great George Street,
Westminster, in the County of Middlesex, for the Invention of "IMPROVE-
MENTS IN FLYERS FOR SPINNING."
Sealed the 27th October 1877, and dated the 25th August 1877.
PROVISIONAL SPECIFICATION left by the said Edward Alfred Cowper at
the Office of the Commissioners of Patents on the 25th August 1877.
EDWARD ALFRED COWPER, of No. 6, Great George Street, Westminster, in the
County of Middlesex. IMPROVEMENTS IN FLYERS FOR SPINNING."
My Invention relates to flyers used in spinning, and as applied to inverted flyers
consists in so distributing the weight thereof that the axis on which the flyer would
naturally rotate, if freely suspended in the air, shall practically coincide with the
axis on which it is mounted in the machine. This is accomplished by making
the top of the flyer and the bottom end of the boss as light as is conveniently
possible, and accumulating the greater portion of the weight of the flyer at or
near the base thereof, and by preference I make such weight in the shape of a disc
or ring.
For counteracting the drag of the thread upon the one leg of the flyer, I provide
on the latter such an additional weight that when rotating at the ordinary working
speed the centrifugal force thereof shall as nearly as possible equal the inward
pull of the thread as it passes on to the bobbin. This latter arrangement is
equally applicable to flyers that are fixed to the spindle and work with the legs
downwards.

page_text: 76
R. Ramsden, No. 1397, 7, and to E. A. Cowper, No. 987, 77, and also to other flyers
not attached to their spindles.
.
Fig. 3 shews a flyer running on a boss or projection on the copping rail. Fig. 4
shews a flyer very similar to Fig. 1, but with a thick washer, or several washers
to give the drag, and requiring no boss or projection on the copping rail.
Fig. 5 shews the application of my Invention to a flyer forged in the usual
way. Fig. 6 shews a method of applying my Invention to a flyer forged in the
usual way by means of a ring secured to the legs, and a small additional weight to
one leg.
The flyers shewn in Figs. 3, 4, 5, and 6, all have friction for the drag given by
flannel or other soft washers, according to the Specification of a Patent granted
to J. L. Taylor and R. Ramsden, No. 1397, 78. Such mode of balancing the
pull of the thread is also applicable to flyers that are geared as well as those that
are pulled round by the thread.
This Invention is applicable to the spinning, doubling, or twisting of cotton, silk,
worsted, woollen, and other fibrous materials.
Having thus described the nature of my said Invention and in what manner
the same is to be performed, I claim,-
First. Constructing inverted flyers with the principal part of their weight
accumulated at a considerable radius near their base, so that the axis on which they
would naturally rotate, if they were freely suspended in the air, shall practically
coincide with the axis on which they are mounted in the machine, substantially as
and for the purposes herein set forth.
Second. Constructing inverted flyers with a small additional weight in the leg
through which the thread passes, so that by its centrifugal force it shall nearly
balance the pull of the thread, substantially as herein described.
In witness whereof, I, the said Edward Alfred Cowper, have hereunto set
my hand and seal, this Seventeenth day of December, in the year of our
Lord One thousand eight hundred and seventy-seven.
WANDER
E. A. COWTER. (LS.)