IMPROVEMENTS IN MACHINERY OR APPARATUS USED Dan on ST AND DOGGING VARNS FOR WEAVING.
Year: 1855

page_text: LETTERS PATENT to Richard Threlfall, of Preston, in the County of Lan-
caster, Cotton Spinner, and John Higson, of the same Place, Manager,
for the Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS USED
Dan on ST AND DOGGING VARNS FOR WEAVING.
·
Sealed the 4th January 1856, and dated the 6th November 1855.
PROVISIONAL SPECIFICATION left by the said Richard Threlfall and
John Higson at the Office of the Commissioners of Patents, with their
Petition, on the 6th November 1855.
A
We, RICHARD THRELFALL, of Preston, in the County of Lancaster, Cotton
Spinner, and JOHN, HIGSON, of the same Place, Manager,. do hereby declare
the nature of our, said, Invention, for, "IMPROVEMENTS IN MACHINERY, OR. APPA-
RATUS USED IN PREPARING. OR, SIZEING, AND DRESSING, YARNS FOR WEAVING," to..be
as follows: 6, c?) v*;#t
24
This Invention relates to an improved mode, of regulating the width or
expanse of the dressed yarn-in sizeing machines, whereby the wraith or comb
barcusually, employed is dispensed with, and the yarns are consequently less
liable to fracture, since no obstacle, is presented to the, yarn, from one; end of
the machine to, the other, and, the machine may also be worked at a greater
speed on, that account than the ordinary, sizing machines....Sa
The improvements consist in the substitution of an arched or curved bar,

page_text: which we term a contracting bar, in place of the ordinary wraith or comb,
for the purpose of contracting the width of yarns. The dressed yarns after
leaving the drying cylinder pass round a roller, and thence round the con-
tracting bar, herein-before referred to. The roller in place of being in fixed
bearings is made to slide horizontally to or from the contracting bar, according
as the width of yarns is desired to be more or less contracted, the sliding
motion being imparted by means of a screw spindle, worked from the front of
the machine. In place of the roller being thus made to slide, a sliding motion
may be imparted to the contracting bar, when a similar result will be obtained.
An iron roller working in moveable arms is made to press upon the dressed
yarn as it is wound on to the beam, thereby keeping the yarn quite flat, and
preventing the threads from crossing each other.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Threlfall and John Higson in the Great Seal Patent
Office on the 6th May 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, RICHARD
THRELFALL, of Preston, in the County of Lancaster, Cotton Spinner, and
JOHN HIGSON, of the same Place, Manager, send greeting.
'
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of November, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Richard Threlfall and John Higson, Her special license that we, the said
Richard Threlfall and John Higson, our executors, administrators, and assigns,
or such others as we, the said Richard Threlfall and John Higson, our exécu-
tors, administrators, or assigns, should at any time agree with, and no others,
from time to time and at 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 MACHINERY OR APPARATUS
USED IN PREPARING OR SIZEING AND DRESSING YARNS FOR WEAVING," upon the
condition (amongst others) that we, the said Richard Threlfall and John
Higson, by an instrument in writing under our hands and seals, or under the
hand and seal of one of us, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,

page_text: 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 we, the said Richard Threlfall and John Higson,
do hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained in
and by the following statement, reference being had to the accompanying
Drawings, and to the letters and figures marked thereon, that is to say :-
Our said Invention relates to an improved mode of regulating the width or
expanse of the dressed yarn in sizing machines and tape frames, whereby the
wraith or comb bar usually employed for that purpose is dispensed with, and
the yarns are consequently less liable to fracture, since no obstacle is presented
to them from one end of the machine to the other, whilst the machine may
also be worked at a greater speed than the ordinary sizing machines, and the
yarns are prevented from twisting.
The improvements consist in the use of an adjustable roller in conjunction
with an arched or curved bar, which we term a contracting bar, whereby the
ordinary wraith or comb for the purpose of contracting the width of yarns is
dispensed with. The dressed yarns after leaving the drying cylinder or
cylinders pass round the adjustable roller, and thence round the contracting
bar, herein-before referred to. The roller in place of working in fixed bear-
ings is made to slide horizontally to or from the contracting bar, according as
the width of yarns is desired to be more or less contracted, the sliding motion
being imparted by means of a screw spindle or spindles worked from the front
of the machine. In place of the roller being thus made to slide, a sliding
motion may be imparted to the contracting bar, when a similar result will be
obtained. An iron roller or bar working in moveable arms is made to press
upon the dressed yarn as it is wound on to the beam, thereby keeping the
yarn quite flat, and preventing the threads crossing each other.
And in order that our said Invention may be fully understood, we shall now
proceed more particularly to describe the same, and for that purpose we shall
refer to the Figures on the Sheet of Drawings hereunto annexed, the same
letters of reference indicating corresponding parts throughout all the Figures.
Figure 1 of our Drawings represents a side elevation of a portion of a sizing
and dressing machine as fitted with our improvements; Figure 2 is a corre-
sponding plan of the same; and Figure 3 is a transverse section of the machine,
taken along the line 1, 2, in Figure 1.
The main framing A requires little or no alteration, and our improvements
may therefore be adapted with great facility to the ordinary sizing or dressing

page_text: machines at present in use. The yarn B, which is shewn in blue lines, after
passing through the sizing trough C, is conducted in the ordinary manner round
the drying cylinders D, E, and from the under side of the cylinder E it pro
ceeds to the adjustable regulating roller F, round which it is passed and brought
back again to the curved contracting Bar G, which, in combination with the
adjustable roller, constitutes the principle or main feature of our Invention; and
after passing round this bar, it is carried upwards and conveyed over the roller
H on the top of the framing. Between this roller and contracting bar Gäre
fitted two small rollers I, I, for the yarn to run against.
The contraction of the yarn is effected between the roller F 'and'the'con-
tracting bar, and this contraction may be increased or decreased at pleasure-by
altering the distance between the roller F and the contracting bar. This
adjustment may be effected by causing the bearings of the roller to 'slide in
slots K in the framing, by means of two 'screw spindles L, L; 'connected to
each bearing. These spindles work in bosses at M, and are each fitted with
a winch handle N in the front of the machine; for 'the facility of 'actuating
them. The farther the roller F is removed from the 'contracting bar the more
will the yarn be contracted, and thus, by adjusting the roller nearer to the
contracting bar, this contraction will be proportionally reduced..
In place of adjusting the position of the 'roller F, it is obvious that the same
effect will be produced by making the contracting bar adjustable' in 'slöts, and
having the roller fixed, or both the bar and roller may be made adjustable, if
found desirable; or the regulating roller F may be dispensed with, and the
yarns brought direct from the drying cylinder E (as shewn in Figure 4) round
the inoveable contracting bar G, which in this case is curved in an opposite
direction to that "shewn in Figure 2, and is 'made 'adjustable nearer to or
further from the drying cylinder in the slots K, K, "of the framing A. The
yarn after passing over the upper roller H is subdivided vertically into three or
more parts by means of four or more rollers, two of which are placed at 0
and two at P, arranged one above the other.
rf
One part of the yarn passes over the top rod at Oand the other two parts
under the lower rod,
One part which passes under the lower rod is divided
from the other, and
passes over the top rod at 'P; whilst the remaining portion
passes over the lower rod at P. The whole of the yarns are then again united
at'the roller Q,‘which rotates in the ends of the 'moveable arms Q', 'working
on centres at Q", and pressés upon and tightens the yarn as it is being wound-
on to the yarn beam. After passing under that roller, and also under the
succeeding roller R, the yarns are wound on to the yarn beam, and are pressed
evenly thereon by the small pressing bar or roller S, which is suspended by the

page_text: links T from the centre U; but we may here observe that we lay no claim to
the use of the pressing bar or roller S.
Although we have herein-before described and illustrated a curved con-
tracting bar, we wish it to be distinctly understood that we do not confine or
restrict ourselves to the use of a curved bar, as an angular bar, with the apex
or junction of the angles in the centre of the bar, or of the width of the yarns
to be passed round it, would also be found to answer.
Having now described and particularly ascertained the nature of our said
Invention, and the manner in which the same is or may be used or carried
into effect, we would observe, in conclusion, that we do not confine or restrict
ourselves to the precise details or arrangements which we have had occasion
to describe or refer to, as many variations may be made therefrom without
deviating from the principles or main features of our said Invention; but what
we consider to be novel and original, and therefore claim as the Invention
secured to us by the herein-before in part recited Letters Patent, is,-
First, the application and use of a curved or angled contracting bar, in
conjunction with a regulating roller, one or the other or both being made
adjustable, for the purpose of regulating the width of the yarns in sizing and
dressing machines, in the manner herein-before described.
Second, the application and use of a pressing or tightening roller or rollers
working in moveable arms, for the purpose of keeping the yarns quite flat,
and preventing them from crossing each other before being wound on to the
yarn beam.
Third, the system or mode of contracting the width of yarns in sizing and
dressing machines to any required extent, by causing such yarns to pass direct
from the drying cylinder round a moveable curved or angled contracting bar,
made adjustable nearer to or further from the drying cylinder.
In witness whereof, we, the said Richard Threlfall and John Higson,
have hereunto set our hands and seals, the Third day of May, One
thousand eight hundred and fifty-six.
KICHARD THRELFALL. (L.S.)
JOHN HIGSON.
(L.S.)