AN IMPROVED APPARATUS FOR ASCERTAINING THE DEGREE OF TORSION AND RESIST ANCE IN THE THREADS OF TEXTILE SUBSTANCES
Year: 1865

page_text: LETTERS PATENT to Bienaimé Felix Brunet, of No. 31, Rue des Bourdon-
nais, Paris, in the Empire of France, for the Invention of "AN
IMPROVED APPARATUS FOR ASCERTAINING THE DEGREE OF TORSION AND RESIST
ANCE IN THE THREADS OF TEXTILE SUBSTANCES."
Sealed the 20th April 1866, and dated the 2nd November 1865.
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, BIENAIME
FELIX BRUNET, of No. 31, Rue des Bourdonnais, Paris, in the Empire of
France, send greeting.
WHEREAS I am in possession of an Invention for "AN IMPROVED
APPARATUS FOR ASCERTAINING THE DEGREE OF TORSION AND RESISTANCE IN THE
THREADS OF TEXTILE SUBSTANCES," and have petitioned Her Majesty to grant
unto me, my executors, administrators, and assigns, Her Royal Letters
Patent for the same, and have made soleinn Declaration that I am the first
and true Inventor thereof.
NOW KNOW YE, that I, the said Bienaimé Felix Brunet, do hereby
declare that the following Complete Specification under my hand and seal
fully describes and ascertains the nature of the said Invention, and in what
manner the same is to be performed, in and by the following statement,

page_text: reference being had to the Drawing hereto annexed, and to the figures and
letters marked thereon, that is to say:-
My Invention consists in the construction of an improved apparatus for
ascertaining or proying the twist and strength of the threads of textile
substances by the spirals of a screw, and to combine in an instrument of
small dimensions the necessary means, first, for ascertaining the strength
and the various qualities or defects of the fibres of textile materials before
spinning.
Secondly, for ascertaining the twist of flax, hemp, cotton, woollen, silk,
and other threads.
Thirdly, for ascertaining, the strength of these threads according to the
twist of the thread or to the twist desired to be given to it with the
instrument.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation, and Figure 2 a plan of the part of the
instrument by means of which the twist of the threads is ascertained; S is
a frame on which is a small upright L, serving as a nut to a screw M,
having a number of threads corresponding to the greatest number of twists
to be found in the threads to be proved; G is a rule or scale parallel to the
screw, and on which are marked the degrees corresponding to each turn
given to the screw, so that if one end of a thread be attached to the
extremity of this screw by means of a small nipper J, and the other end
of the thread be held by the nipper E, tightened by the screw F, and which
is moveable on the whole length of the rod G, and if the screw is turned
by the small handle N, so as to untwist the thread, it will be seen, as soon
as the untwisting of the thread is completed, by the scale of the rule G,
the number of turns that have been made by the screw for untwisting the
thread, and this number will represent the exact number of twists of the
thread.
Figure 3 is a side elevation, and Figure 4 a plan of a small twist
prover for obtaining the same results as above described by means of an
instrument of small dimensions. The frame of this instrument is made of
a size corresponding to the kind of thread to be proved. Near the centre
of the screw X are screw threads, which take into a small toothed wheel a,
each tooth of which wheel represents a turn of the screw, so that if the
teeth are numbered on a corresponding dial, and the axis of the wheel is
supplied with a hand indicating the direction of the wheel a, I am enabled
to obtain by this means the registration of the number of turns made by

page_text: the small arbor X for untwisting the length of the thread, and consequently
the exact number of the twists of this thread, the extremities of which are
fixed as shewn, one in the left nipper h and the other in the left nipper b,
put in movement by the screw V. If a thread or fibre be attached to the
hook or to the nipper 6 of the screw, Figure 1, and it is required to prove
its strength, the means of effecting this are afforded by the instrument
represented in Figures 1 and 2. The strength of the thread wound in a
spiral form can be obtained by means of the small spring steelyard Q, P;
thus, if one extremity of the thread be attached to the hook K fixed to the
screw, and the other extremity be held by the nipper E, and if this nipper
is held to the steelyard by means of cords passing over the roller A, it is
evident that in turning the screw by the small handle a distension will take
place on the steelyard until the thread breaks. The pawl o of the steel-
yard Q, P, will stop at the point where the rupture takes place and will
mark the resisting power on a scale placed near the steelyard on the frame-
work of the machine.
Having now described the nature of my Invention, and the manner of
putting the same into execution, I wish it to be understood that I do not
confine myself to the precise details herein laid down and shewn in the
accompanying Drawing; but what I claim and wish to be protected is the
construction of an improved apparatus for ascertaining the twist and
strength of the threads of textile substances as herein-before described and
shewn in the accompanying Drawing.
In witness whereof, I, the said Bienaimé Felix Brunet, have here-
unto set my hand and seal, this First day of November, in the year
of our Lord One thousand eight hundred and sixty-five.
BIENAIME FELIX BRUNET. (L.S.)