in gassing frames or machines for gassing or singeing yarns or threads
Year: 1889

page_text: I. ARNOLD VILLAIN, of rue des Rogations. Lille, in the Republic of France.
Engineer. do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
The improvements in gassing frames or machines for gassing or singeing yarns or
threads forming the object of the present invention consist in the arrangement of the
jet or burner which is such as to afford a maximum breadth of flame and intensity of
heat with a minimum consumption of gas and also in the arrangement of a quick
acting stop motion which throws the winding-on bobbin and the thread guides at the
burner out of action simultaneously.
By means of the improved arrangement of the burner a considerably greater yield
or effect is obtained than in ordinary gassing frames and the great breadth of the
flame produces greater regularity in the combustion of the fibres and a more complete
singeing action which enables the yarn or thread to be caused to travel through the
flame at a higher speed than heretofore.
In consequence of the accelerated speed at which the yarn or thread passes through
through the flame the fluff or loose fibres are removed without heating the central
part of the yarn or thread and the weakening of the material resulting from the heat
to which it is exposed in passing through one or more flames as in the machines
heretofore constructed is consequently obviated.
And in order that my said Invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheet of drawings the same letters of reference indicating
corresponding parts in all the figures.
Figure 1 of the accompanying drawings represents in longitudinal section an
example of a gassing frame constructed according to my invention.
Figure 2 represents part of the frame in plan.
Figure 3 represents the burner in transverse section and the moveable thread
guides.
Figures 4, 5 and 6 illustrate modifications of the burner as hereinafter described.

page_text: The burner in the improved construction of gassing frame illustrated in the accom
panying drawings is composed of a tube A of large diameter acting as a mixing
chamber or reservoir for the air and gas. The upper part of this tube is constructed
with two inclined planes or flat sides inclining inwards and forming between their
upper edges a narrow aperture or opening covered by wire gauze. The lower part is
closed by a bottom C through which pass two concentric tubes or pipes B and D the
tube B being a gas supply pipe and D a pipe for the supply of air under pressure.
These pipes are provided with separate regulating taps or cocks and the three
tubes A, B, and D are so arranged as to admit of their independent adjustment.
According to a modification of this burner illustrated in Figure 4 the air under
pressure is mixed with the gas in the required proportions in a chamber A¹ provided
at one extremity with an air supply pipe D' having a gas supply pipe B' passing
through its centre. Branch pipes AA connect this chamber to a burner A' giving
a number of small separate jets or to a burner A giving a long narrow flame and
being closed at its lower part and constructed either with or without a wire gauze
cover.
In the burners illustrated in Figures 5 and 6, which are likewise arranged for
working with air under pressure and are provided with a longitudinal slot or orifice.
the gas is supplied by a central pipe B flattened at its upper end so as to present a
long narrow orifice whose shape and dimensions correspond with those of the burner
tube. In these modifications the air is supplied to a space or chamber K' by the
pipe D and the burner tube enclosing the said space is closed at its lower extremity
by a bottom C as in the arrangement illustrated in Figure 1.
The yarn or thread (marked Figures 1 and 2) passes through guide eyes a and S
and through an eye on the upper end of a pin or rod I being drawn from a cop or
bobbin N and wound on to a bobbin II driven by friction, being in contact with a
driving roller or drum P. The three guides a are stationary and the two guides S are
carried by an oscillating or pivoted support R. The pin or rod,I is free to slide
vertically in a guide or box E being supported by the yarn a when the bobbin H is in
motion. When the yarn breaks, the rod I drops and its lower extremity is acted on
by a rotating triangular or tappet shaft T which pushing the rod to one side rocks
the box E which is mounted on hinges or pivots (indicated at O Figure 2) on the
frame. The rocking movement of the box E releases a lever arm G which is normally
supported by a pin b attached to the box and falls when deprived of this support.
This lever being connected by a rod K to the main stop lever L which is provided
with a suitable counter weight 1. the series of levers is thus caused to oscillate and
assume the position represented by the dotted lines in the drawing.thereby displacing
the bobbin H carried by arins V hinged to the frame at 01. The bobbin being
thus displaced or lifted is moved out of contact with the driving drum P and its
rotary motion is consequently suspended and the yarn ceases to move.
On the other hand the support R of the guides S S which was held up or
supported by the arm of the main lever L, being deprived of support rocks in a
hinge or axis M and moves the said guides to one side of the flame in order to
enable the broken ends to be readily reconnected. This operation having been duly
performed it is sufficient to depress the end of the main lever L in order to
restore all the parts to their original position indicated by the full lines on the
drawing.
I do not limit myself to the precise details or forms of construction illustrated in
the accompanying drawing simply for the purpose of explaining how my invention
may be carried out in practice and which may evidently be modified according to
circumstances without departing from the principles of my invention.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. In gassing frames the arrangement of a burner using compressed or other air

page_text: pipes B and D the said chamber presenting at the upper part two inclined planes or
sides forming between them a narrow orifice or slit covered with wire gauze substan-
tially as hereinbefore described with reference to the accompanying drawings.
2. In gassing frames the arrangement of a close burner having a longitudinal slit
or small crifices with or without wire gauze and wherein a mingling of gas and
compressed air takes place either in the interior of the burner tube (Figures 5 and 6)
or in a separate chamber (Figure 4) or otherwise substantially as hereinbefore
described with reference to the accompanying drawings.
3. In gassing frames the stop motion constructed with a pin or rod 1 capable of
sliding in a box E and acting in combination with a rotary triangular shaft T or an
equivalent mechanical device for the purpose of releasing levers G and Land stopping
the winding-on bobbin by moving it away from the driving drum P substantially as
hereinbefore described and illustrated in the accompanying drawings.
4. In gassing frapies the combination of the stop motion referred to in the preceding
claiming clause with the support. R of the guides S S for the purpose of rocking the
said guides to one side of or away from the burner so as to facilitate the reconnection
of the broken ends substantially as hereinbefore described and illustrated in the
accompanying drawings.
5. The general arrangement and combination of parts comprising a burner A an
automatic, stop motion I and rocking guides S S all arranged and operating substan-
tially as hereinbefore described with reference to the accompanying drawings.
Dated this 10th day of January 1900