IMPROVEMENTS IN DOUBLING OR TWISTING SILK, COTTON, WORSTED, LINEN, OR WOOLLEN YARNS, OR YARNS FROM ANY OTHER FIBROUS SUBSTANCE
Year: 1859

page_text: LETTERS PATENT to Charles Wilkinson, of Slaithwaite, in the County
of York, Merchant, for the Invention of "IMPROVEMENTS IN DOUBLING OR
TWISTING SILK, COTTON, WORSTED, LINEN, OR WOOLLEN YARNS, OR YARNS
FROM ANY OTHER FIBROUS SUBSTANCE."
Sealed the 12th August 1859, and dated the 16th June 1859.
PROVISIONAL SPECIFICATION left by the said Charles Wilkinson at
the Office of the Commissioners of Patents, with his Petition, on the
16th June 1859.
I, CHARLES WILKINSON, of Slaithwaite, in the County of York, Merchant,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
DOUBLING OR TWISTING SILK, COTTON, WORSTED, LINEN, OR WOOLLEN YARNS, OR
YARNS FROM ANY OTHER FIBROUS SUBSTANCE," to be as follows:-
The object of this Invention is to enable the doubling or twisting machine
to perform twice the amount of work usually done in a given time, without
any additional cost for labour.
In ordinary doubling or twisting machines it has hitherto been invariably
the practice to double or twist the yarn from one end only.
Now this Invention consists, firstly, in performing the operation of doubling
or twisting yarns made from silk, cotton, flax, wool, or other fibrous material
or mixture of materials at both ends of the yarn at one and the same time.
And, secondly, in the addition to the ordinary twisting or doubling machine
of a duplicate set of twisting or doubling apparatus for that purpose.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Wilkinson in the Great Seal Patent Office on the
16th December 1859..
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
WILKINSON, of Slaithwaite, in the County of York, Merchant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixteenth day of June, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-second year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Charles Wilkinson, Her special licence that I, the said Charles
Wilkinson, my executors, administrators, and assigns, or such others as I, the
said Charles Wilkinson, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times there-
after 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
DOUBLING OR TWISTING SILK, COTTON, WORSTED, LINEN, OR WOOLLEN YARNS, OR
YARNS FROM ANY OTHER FIBROUS SUBSTANCE," upon the condition (amongst
others) that I, the said Charles Wilkinson, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands and
seals, 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 Charles Wilkinson do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement in writing, and on reference to the accompanying Drawings, that is
to say:-
The object of this Invention is to enable the doubling or twisting machine
to perform about twice the amount of work usually done in a given tinie
without any additional cost for labor.
In ordinary doubling and twisting machines it has hitherto been invariably
the practice to double or twist the yarn from one end only..
Now this Invention consists, firstly, in performing the operation of doubling
or twisting yarns made from silk, cotton, flax, wool, or other fibrous material
or mixture of materials at both ends of the yarn at one and the same time.

page_text: And, secondly, in the addition to the ordinary twisting or doubling machine
of a duplicate set of twisting or doubling apparatus for that purpose.
I
In order that this Invention may be perfectly understood, and the manner
of carrying the same into practical effect may be clearly explained, I have
annexed hereunto a Sheet of illustrative Drawings, and have marked the same
with figures and letters of reference corresponding with those in the following
explanation thereof, that is to say :-
Figure 1 in the Drawings represents an end view of part of a doubling
frame with my Invention shewn as applied thereto, and Figure 2 is a front
view of the same; Figure 3 is a plan view of the additional set of twisting
apparatus; Figure 4 is a'side elevation of one of the flyers of this set (drawn
full size); and Figure 5 is a section of the same across the line A, B, in
Figure 4.
.
In Figures 1 and 2, a, a, is the framework of the machine; b, b, the spindle
rails; c, c, the ordinary spindles, driven as usual by bands from the ordinary
tin roller d, d; e, e, is the lifting rail; and f, f, are the bobbins on to which the
yarn is wound as it is doubled; g, g, are the drawing rollers; and h, h, are
the bobbins containing the single yarn. These bobbins, instead of being
mounted on a creel as usual, are placed in pairs on an additional set of
spindles i, i, revolving in a horizontal position, and provided with long armed
Ayers k, k. It will of course be understood that if more than two threads are
to be twisted together, a corresponding number of bobbins must be placed on
each spindle, or (if preferred) two or more threads may be wound on each
bobbin. It will be seen on referring to Figures 4 and 5, that the arms of
these flyers k, k, are each provided with two wings 1, 1, forming a sort of groove
to conduct the threads to the curl at the end of the arm, and that the end of
the spindle i, i, is also formed with a curl. The spindles i, i, are driven in a
reverse direction to the spindles c, c, by means of bands m, m, (see Figure 1)
passing around their wharves and round an additional tiu roller n, n, which
receives its motion from a band o, o, passing round a pulley p, p, on the end
of the ordinary tin roller d, d. The doubled threads pass from the eye or
curl on the ends of the spindles i, i, over small grooved pulleys q, q, revolving
in a trough r, r, (containing water), through the rollers g, g, round the guides
8, 3, and again through the drawing rollers g, g, on to the bobbins f, f. t, t, is
a wedge of wood, suspended by a cord u, u, which passes over a pulley v, v, at
one end of the machine, and is kept tight by a weight w, as shown in detached
view, Figure 6. This wedge is for the purpose of stopping any of the spindles
i, i, when required, by pressing it down between the frame and the face of the.

page_text: wharve, as shewn in dotted lines in Figure 1. About one wedge to every
twelve spindles will be quite sufficient, the wedges being capable of sliding
along the cord. It will thus be evident that by the application of the
additional twisting apparatus above described, the yarn, at the same time that
it is doubled, will receive twist at both ends at one and the same time, and
consequently about double the amount of work can be performed by the
doubling frame in a given amount of time, with about the same cost for labor.
Having now described the nature and object of my said Invention for
"Improvements in Doubling or Twisting Silk, Cotton, Worsted, Linen, or
Woollen Yarns, or Yarns from any other Fibrous Substance," together with
the manner of carrying the same into practical effect, I would remark in
.conclusion, that I claim as my Invention,-
Firstly, the doubling or twisting of such yarns from both ends at one time.
And, secondly, the addition to doubling or twisting frames of a duplicate set
of twisting apparatus for that purpose.
In witness whereof, I, the said Charles Wilkinson, have hereunto set
my hand and seal, this Third day of December, One thousand eight
hundred and fifty-nine.
CHARLES WILKINSON. (L.S.)
Witness,
BRISTOW HUNT,
Sol. & Patent Agent,
1, Serle St., Lincoln's Inn.