IMPROVEMENTS IN APPARATUS FOR SPINNING AND DOUBLING COTTON AND OTHER FIBROUS SUBSTANCES
Year: 1872

page_text: LETTERS PATENT to Henry Ashworth, of Walsden, in the County of
Lancaster, for the Invention of "IMPROVEMENTS IN APPARATUS FOR
SPINNING AND DOUBLING COTTON AND OTHER FIBROUS SUBSTANCES.”
Sealed the 16th July 1872, and dated the 11th April 1872.
PROVISIONAL SPECIFICATION left by the said Henry Ashworth at
the Office of the Commissioners of Patents, with his Petition, on
the 11th April 1872.
I, HENRY ASHWORTH, of Walsden, in the County of Lancaster, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR SPINNING AND DOUBLING COTTON AND OTHER FIBROUS SUBSTANCES,"
to be as follows:-
This Invention relates to improvements upon a former Invention for
which Letters Patent were granted to me bearing date the Nineteenth
day of January, A.D. 1870, No. 165. I employ the ordinary thostle
and doubling spindle with a fixed wharve and with the flyer screwed on.
to the top in the usual manner, as in the former case. I also use the
fixed and loose tubes, as described in the Specification of the Letters

page_text: Patent before mentioned, but with the following alterations and improve-
ments, which are designed with a view of allowing the drag upon the
bobbin to be regulated at will, and also to accommodate itself to
the variation in speed and in the tension of the thread produced by the
increasing diameter of the bobbin as the spinning or doubling proceeds.
The fixed tubes carried by the lifting rail are provided just above the
level of the rail with a circular flange or disc about the same diameter
as the bottom of the bobbin and having a raised rim all round the outer
edge. Above this flange the tube is reduced in external diameter or
formed with a long neck so that the loose tubo only bears at the top
and bottom, and the top bearing is grooved spirally with both a right
and a left hand thread crossing each other in order to retain the oil or
lubricating matter. The tube may be either the full length of the bobbin
so that the latter does not touch the spindle at all, or it may be shorter
so that the upper part of the bobbin has a bearing on the spindle. The
lower end of the loose tube has a narrow flange and bears upon the
centre of the disc or flange of the fixed tubo, notches being cut in
the former to reduce the friction. The top of this smaller flange is
about level with the outer rim of the larger flange, or slightly higher,
and the felt or other washer which gives the drag rests upon the upper
surface of both, the bottom of the bobbin which is dished or hollow
bears only on the outer rim with the washer intervening, no pin being
required for driving the bobbin. As the central part of the washer
is slightly higher than the outer edge upon which the bobbin rests it
follows that when the bobbin revolves at a high velocity the centrifugal
force causes the outer edge of the washer to rise slightly and diminishes
the drag upon the raised rim of the fixed tube. On the contrary when
the speed of the bobbin is less the weight of the bobbin increases the
drag by pressing the outer edge of the washer down on to the rim.
The drag may be still further reduced for spinning and doubling fine
numbers by raising the central part of the washer by means of a small
leather or other washer placed between it and the flange of the loose
tube.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Ashworth in the Great Seal Patent Office
on the 10th October 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
ASHWORTп, of Walsden, in the County of Lancaster, send greeting.
of
"
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of April, in the year
our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
giye and grant unto me, the said Henry Ashworth, Her special license,
that I, the said Henry Ashworth, my executors, administrators, and
assigns, or such others as I, the said Henry Ashworth, my executors,
administrators, and assigns, should at any time agree with, and no others;
from time to time and all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN APPARATUS
FOR SPINNING AND DOUBLING COTTON AND OTHER FIBROUS SUBSTANCES," upon
the condition (amongst others) that I, the said Henry Ashworth,. my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and scals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Henry Ashworth, do hereby declare
the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement and accompanying Drawings (that is to say) :-
This Invention relates to improvements upon a former Invention for
which Letters Patent were granted to me bearing date the Nineteenth
day of January A.D. 1870, No. 165. I employ the ordinary throstle
and doubling spindle with a fixed wharve and with the flyer screwed on
to the top in the usual manner, as in the former case. I also use tho
fixed and loose tubes, as described in the Specification of the Letters
Patent before mentioned, but with the following alterations and in-

page_text: provements which are designed with a view of allowing the drag, upon
the bobbin to be regulated at will, and also to accommodate itself to the
variation in speed and in the tension of the thread produced by the
increasing diameter of the bobbin as the spinning or doubling proceeds.
Such being the nature and object of the said Invention for "Improve- 5
ments in Apparatus for Spinning and Doubling Cotton and other
Fibrous Substances," I will now proceed more in detail the manner
in which the same is to be or may be performed or carried into practical
effect, and in order that the same may be clearly understood I have
hereunto annexed a Sheet of Drawings illustrative thereof, and have 1
marked the same with figures and letters of reference corresponding with
those in the following explanation thereof:-
Fig. 1 in the annexed Drawing is an elevation of a throstle or
doubling spindle, showing the fixed tube or bolster in its place; Fig. 2
is an elevation of the loose tube, and Fig. 2" is an underneath view of 1
the same, showing also the cloth washer; Fig. 3 is a sectional view
showing the fixed and loose tubes and the cloth washer in their respective
places.
a, a, is the guide rail; b, b, the lifting rail; and c, c, the spindle
rail; d, d, are the spindles; and e, e, is the bobbin. The fixed tubes or 2
bolsters ff, carried by the lifting rail are provided just above the level
of the rail with a circular flange or disc 9, 9, about the same diameter
as the bottom of the bobbin, and having a raised rim *, *, all round the
outer edge. Above this flange the tube is reduced in external diameter
or formed with a long neck so that the loose tubo only bears at the top 2
and bottom, and the top bearing is grooved spirally with both a right
and a left hand thread crossing each other, as shown at h, h, in order to
retain the oil or lubricating matter. This tube may be either the full
length of the bobbin, so that the latter does not touch the spindle at all,
as shown at Figs. 1 and 3, or it may be shorter so that the upper part 3
of the bobbin has a bearing on the spindle, as shown at Fig. 4. The
lower end of the loose tube i, i, has a narrow flange k, k, and bears upon
the centre of the disc or flange of the fixed tube, notches 2, 7, being cut
in the underneath part of the former to reduce the friction, as seen at
Figs. 2 and 2*. The top of this smaller flange is about level with the 3
outer rim of the larger flange, or slightly higher, and the felt or other
washer m, m, which gives the drag rests upon the upper surface of both,
the bottom of the bobbin which is dished or hollow bears only on the

page_text: outer rim with the washer m, m, intervening, no pin being required for
driving the bobbin. As the central part of the washer is slightly
higher than the outer edge upon which the bobbin rests it follows that
when the bobbin revolves at a high velocity the centrifugal force causes.
the outer edge of the washer to rise slightly, and thus diminish the
drag upon the raised rim of the fixed tube. On the contrary when the
speed of the bobbin is less the weight of the bobbin increases the drag
by pressing the outer edge of the washer m, m, down on to the rim *, *
The drag may be still further reduced for spinning and doubling fine
numbers by raising the central part of the washer by means of a small
leather or other washer placed between it and the flange of the loose
tube.
Having now described the nature and object of my said Invention
for "Improvements in Apparatus for Spinning and Doubling Cotton
and other Fibrous Substances," together with the manner in which the
same is to be or may be performed or carried into practical effect, I wish
it to be understood that I claim as my Invention the several improve-
ments herein-before more particularly described and represented in the
annexed Drawings, and more especially I claim the combination of the
fixed tube f, f, with its flange g, g, and raised rim *, with the loose
tube i, i, and its respective flange k, k, so arranged that the central part
of the washer resting on the latter shall be somewhat higher than the
outer part of the same, which rests on the raised rim *, and carries
the bobbin in order that the centrifugal force may cause the drag to be
diminished as the velocity increases, and vice versa, substantially as
herein-before described.
"
In witness whereof, I, the said Henry Ashworth, have hereunto
set my hand and scal, this Eighth day of October, in the year of
our Lord One thousand eight hundred and seventy-two.
0
Witnessed by
GEORGE DAVIES, C.E.,
Patent Agent,
Manchester.
HENRY, ASHWORTH. (L.s.)