Im- PROVEMENTS IN DOUBLING MACHINES
Year: 1873

page_text: LETTERS PATENT to Thomas Unsworth, of Manchester, in the County
of Lancaster, Machinist and Doubler, for the Invention of “Im-
PROVEMENTS IN DOUBLING MACHINES."
Scaled the 11th July 1873, and dated the 17th January 1873.
PROVISIONAL SPECIFICATION left by the said Thomas Unsworth at the
Office of the Commissioners of Patents, with his Petition, on the
17th January 1873.
I, THOMAS UNSWORTH, of Manchester, in the County of Lancaster,
Machinist and Doubler, do hereby declare the nature of the said Inven-
tion for "IMPROvements in DoubLING MACHINES,” to be as follows:-
On the 13th day of August, 1870, was granted to me and Edward
Whalley a Patent for Improvements in Machinery for Making Banding.
On the 25th day of April, 1871, was granted to me a Patent for Improve-
ments in Machinery for Making Banding Cord, or other such like
article. In both of the above machines I wind from cops or bobbins,
and double across the machine on the other side, thus taking up both
sides of the machine for one operation of doubling and finishing.

page_text: My present Invention is for doubling alone, whereby I can place three
times the number of spindles in the same space, and obtain three times
the quantity of finished work than can be produced by any other
arrangement hitherto acted upon, besides saving labour and power.
The framing of my machine I make in all respects similar to my
before-mentioned machines; on each side I place two, three, or any
number of rows of spindles and flyers, which flyers are placed with the
legs upwards; on one or both of such legs I use the spring tension lever
as before secured to me. The wound bobbins of yarn ready for twisting
are now put on to the spindles, the end is passed through the eye of
the leg of the flyer, and then through the eye of the tension lever, thence
through a hole in the top of the spindle from which it is passed to and
several times over a pair of my Patent conical stretching rollers, from
thence finished to a bobbin driven by a friction drum near the centre of
the machine frame. This friction drum or roller is the length of the
taking-up bobbin between flanges, and acts on the body of wound cord
or thread. The two sides of the machine are arranged with similar
spindles, flyers, and conical stretching rollers, and taking-up bobbins,
which bobbins on both sides are worked by one range of friction drums
or rollers, which rollers and bobbins are placed one row above the other,
or at any angle that may be desired in number according to the number
of rows of spindles on both sides of the machine frame. In front of each
tier of bobbins I work a traverse rod with eyelets guiding the cord or
thread direct from the rollers to the bobbins evenly. Over each tier of
friction rollers is a rod on which hangs a fork lever which presses on the
bobbin spindle and so presses the bobbin on to the friction roller, which
causes it to work taking up the finished cord or thread.
I drive my spindles from a drum or equivalent, and can drive one,
nindles he one hand

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of January, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Thomas Unsworth, Her special licence
that I, the said Thomas Unsworth, my executors, administrators, and
assigns, or such others as I, the said Thomas Unsworth, my executors, ad-
ministrators, and 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
DOUBLING MACHINES," upon the condition (amongst others) that I, the said
Thomas Unsworth, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should par-
ticularly 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 Thomas Unsworth, 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 :-
My Invention relates to certain improvements in machinery for
doubling two-fold, three-fold, or any number of ends once twisted of
cotton, silk, spun silk, flax, worsted, or any other fibrous material.
On the 13th day of August, 1870, was granted to me and Edward
Whalley, Letters Patent for "Improvements in Machinery for Making
Banding," No. 2254. Likewise on the 25th day of April, 1871, was
granted to me Letters Patent for further "Improvements in Machinery
for Making Banding Cord, or other such like articles," No. 1088. In
both these machines I wind from cops or bobbins stretched by my
conical rollers and doubled across the machine to the other side, where
it is finished.
My present Invention is for doubling alone, and so arranged as to
no the number of on adlee in the same snana
11
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page_text: Hereunto I annex a Sheet of Drawings by which it will be more
clearly understood, the several Figures of which are marked by corres-
ponding letters of reference.
Fig. 1 is a front elevation of my machine; Fig. 2 is an end view of
same; Fig. 3 is a plan.
A, A, is the machine framing; B, the drum from which I drive my
flyer spindles c, c; f, f, are the bobbins of yarn to take up and double
from; d, d, are pullies; e, e, are the flyers fixed on to spindles c, c;
9, 9, are conical stretching rollers, for which Letters Patent where
granted to me on the 8th day of December, 1871, No. 3316. On to these
stretching rollers the several threads of yarn are doubled, and by them
are stretched from small ends of front cones round the next larger groove
of back cone, and as many times round the pair as there are grooves or
as the nature of the work may require, from thence through a trough of
water (if required) to eyelets m, m, fixed into traverse rods n, n, in front
of bobbins which are worked along backwards and forwards the length
of the take-up bobbins o, o. These bobbins are worked by friction
rollers p, p, one roller working two take-up bobbins; that is, one bobbin
on each side of the machine. In the sides of the upper frame q, q, are
grooves for the ends of the take-up bobbin spindles to slide in and to 2
work freely, these grooves are made to a suitable angle, the outer end
inclining upwards so that the tendency of the bobbin when put in is to
the friction roller downward; and further, to keep such bobbins to the
friction rollers I have placed rods j, j, above each friction roller into
frame q, q, on which I hang forked levers i, i, by swivel joints h, h; the 2
two fork ends of this lever hang down, and bear with some weight on to
the take-up bobbin spindles between the frames q and the ends of the
bobbins o, o, giving sufficient friction between such bobbins and rollers
as to insure at all times the take-up. These bobbins are taken out when
full, and replaced without stopping the machine. There are three rows 3
of spindles on each side of the machine driven by means of bands from
drum or other equivalent B, and one band is so arranged to drive two or
more spindles (if desired). There are three tiers of take-up bobbins on
each side; the requisite speeds of the several parts of the machine are
obtained by means of ordinary gearing, as shewn, or by bands, straps, or 3
other equivalent, not necessary here to enumerate.
THE
•

page_text: demand. The traverse motion for working slide bars n, n, are of the
ordinary construction not necessary here to describe or illustrate.
It will thus be seen that any number of ends may be doubled,
stretched, and evenly laid on the take-up bobbins, changed or altered
without stopping the machine. Likewise in the same space and by
nearly the same power three times the same kind of work may be
got off.
Having now described my Invention and the way in which it is
worked, I wish it to be understood that I do not confine myself to the
precise details I have had occasion to describe and refer to as many
variations can and may be made without deviating from the principle
or main features of my Invention, but what I claim as novel, and secured
to me herein is,―
First. The double arrangement of spindles (each side) and flyers for
giving off and twisting, doubling over and stretching by conical rollers,
substantially as and for the purposes herein set forth.
Second. The double arrangement (each side) in tiers of take-up
bobbins o, o, and friction rollers r, r, with fork levers i, i, substantially
as and for the purposes herein set forth.
In witness whereof, I, the said Thomas Unsworth, have hereunto
set my hand and seal, this 12th day of July, in the year of our
Lord One thousand eight hundred and seventy-three.
Witness,
JOHN LEWIS,
Engineer & Patent Agent,
Preston,
Lancashire.
THOMAS UNSWORTH. (L.S.)