CERTAIN IMPROVEMENTS IN TWISTING TEXTILE GOODS OR FABRICS
Year: 1855

page_text: LETTERS PATENT to Henri Auguste Pradel, Manufacturer, of Paris, in the
French Empire, for the Invention of "CERTAIN IMPROVEMENTS IN TWISTING
TEXTILE GOODS OR FABRICS."-A communication.
Sealed the 25th January 1856, and dated the 6th August 1855.
PROVISIONAL SPECIFICATION left by the said Henri Auguste Pradel at
the Office of the Commissioners of Patents, with his Petition, on the
6th August 1855.
I, HENRI AUGUSTE PRADEL, Manufacturer, of Paris, in the French Empire,
do hereby declare the nature of the said Invention for "CERTAIN IMPROVEMENTS
IN TWISTING TEXTILE GOODS OR FABRICS," (communicated to me from abroad,)
to be as follows:-
My Invention consists in drawing threads or other similar materials to be
twisted from reels or bobbins, each held in suitable frames upon a bed, to
which rotary motion is communicated from a central shaft, which is also made
to rotate, and in stretching the threads, regulating the tension upon them, and
preventing any twist therein until two, three, or more are made to unite at
the top of the central shaft, the rotation of which unites and twists all the
threads together.
Upon the central shaft is keyed a horizontal toothed wheel, which gears into
as many more smaller wheels placed round it as there are reels or bobbins.
These small wheels form the beds for the frame and guide to each bobbin.
The upper part of the shaft carries the tension regulator, which is composed
of a disc with as many notches on the edge thereof as there are wires, while
the diameter of the aperture in the centre of the disc is larger than that of

page_text: the shaft.
Should there be more tension in one thread than in another, the
disc tilts out of the horizontal line, and remains so until the tension is equalized,
when it will resume its horizontal position. Each thread is drawn from each
bobbin over a stretching guide in the bobbin frame through an aperture in
the top of the frame, through a collar on the upper part of the shaft over the
regulating disc into a hollow cone on the top of the shaft. The threads are
united at the top of the cone and become twisted together, previous to which
no twist whatever is imparted to each separate thread. The twisted threads
or cord next pass over a pulley and over a roller, which is caused to rotate
by a band driven by gear from the central shaft of the apparatus on to a
winding or finishing reel.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henri Auguste Pradel in the Great Seal Patent Office on
the 5th February 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
AUGUSTE PRADEL, Manufacturer, of Paris, in the French Empire, send
greeting.
at any
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of August, 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 me, the
said Henri Auguste Pradel, Her special licence that I, the said Henri Auguste
Pradel, my executors, administrators, and assigns, or such others as I, the
said Henri Auguste Pradel, my executors, administrators, and assigns, should
time agree with, and no other's, 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 "CERTAIN
IMPROVEMENTS IN TWISTING TEXTILE GOODS OR FABRICS," (communicated to me by
a foreigner residing abroad,)"upon the condition (amongst others) that I, the
said Henri Auguste Pradel, by an instrument in writing under my hand and
'seal, should particularly describe and ascertain the nature of the said Inven-
tion, 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 Henri Auguste Pradel, do hereby
declare the nature of the said Invention, and in what manner the same is

page_text: to be performed, to be particularly described and ascertained in and by the
following statement thereof, reference being had to the Drawings hereunto
'annexed, that is to say:-
My Invention consists in drawing threads or other similar materials to be
twisted from reels or bobbins, each held in suitable frames upon a bed, to
which rotary motion is communicated from a central shaft, which is also made
to rotate, and in stretching the threads, regulating the tension upon them, and
preventing any twist therein until two, three, or more are made to unite at
the top of the central shaft, the rotation of which unites and twists all the
threads together.
Upon the central shaft is keyed a horizontal toothed wheel, which gears into
as many more smaller wheels placed round it as there are reels or bobbins.
These small wheels form the beds for the frame and guide to each bobbin.
The upper part of 'the shaft carries the tension regulator, which is composed
of a disc with as many notches on the edge thereof as there are threads,
while the diameter of the aperture in the centre of the disc is larger than that
of the shaft. Should there be more tension in one thread than in another,
the disc tilts out of the horizontal line, and remains so until the tension is
equalized, when it will resume the horizontal position. Each thread is drawn
from each bobbin over a stretching guide in the bobbin frame through an
aperture in the top of the frame, through a collar on the upper part of the
shaft over the regulating disc into a hollow cone on the top of the shaft.
The threads are united at the top of the cone and become twisted together,
previous to which no twist whatever is imparted to each separate thread.
The twisted threads or cord next pass over a pulley and over a roller, which
is caused to rotate by a band driven by gear from the central shaft of the
apparatus on to a winding or finishing reel..
Figure 1 of the Drawings annexed is an elevation, and Figure 2 a plan, of
an apparatus constructed according to my Invention. .A,.A, is the framework,
in which is stepped the central shaft a. Rotary motion is communicated to
this shaft through a, driving band, passing over a fast pulley n fixed on the
shaft; b is a horizontal toothed wheel, keyed on the shaft a, and gearing into
smaller toothed wheels c, c', c", placed round it and forming beds for the reels
or bobbins; d, d, d", are reels or bobbins, which are suspended horizontally on
spindles e, e', e, supported in bobbin frames f, f', f". The reels are held in
such manner that they may be easily removed and replaced when necessary to
supply them with fresh thread, &c. They partake of the motion of the wheels
c, c, c, and revolve with them round the central shaft a. x is the thread;
g is a stretching guide, one to each bobbin frame through which the thread

page_text: passes, and which is intended to prevent it from twisting on the reel itself.
On leaving the guide, the thread passes through the orifice in the upper part
of each bobbin frame, and thence through a collar t, mounted on the upper
part of the shaft a (shewn in Figure 4). i is the regulating disc or tension
regulator (shewn in plan in Figure 5), by which the tension of the threads
is regulated, as before described. The threads are next carried through a
hollow cones on the shaft a, at the top of which the threads are united and
twisted. This cone is shewn detached in Figure 3.
cord next pass over a guide pulley o, fitted between the arms 7, 7, of a bracket,
formed or hinged on the framework A, or connected therewith, so as to be
brought nearer to or further from the top of the cone at pleasure.
The twisted threads or
From
this guide pulley o the threads or cords are brought on to a roller j, caused
to rotate by a pulley k. This pulley is moved by a driving band from another
pulley on a shaft v, actuated by a toothed wheel m, which gears into a thread
m, cut or formed on the lower part of the shaft a. q is a break pressed upon
by a spring p, intended to check the thread from unwinding from the reel or
bobbin too rapidly.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim as of the said
Invention, the arrangement of machinery herein-before described for twisting
textile goods or fabrics, together with the method of action thereof, which action
consists in drawing threads or other similar materials to be twisted from reels
or bobbins, supported in suitable frames in beds, to which rotary motion is
.communicated from a central revolving shaft, stretching the threads, regulating
the tension on them, and preventing any twist therein until two, three, or
more of them are made to unite at the top of the central shaft, and there
causing them to twist together by the rotation of such central shaft, all as
herein-before described.
In witness whereof, I, the said Henri Auguste Pradel, have hereunto
set my hand and seal, this Fifteenth day of January, in the year of
our Lord One thousand eight hundred and fifty-six.
Witness,
CH. ARMENGAUD, Ing* Civil,
No. 6, Rue Filles du Calvaire, à Paris.
H. A. PRADEL.
(L.S.)