Improvements in Gill-frames or Spreaders.
Year: 1895

page_text: Date of Application, 11th Sept., 1895
Complete Specification Left, 28th Apr., 1896-Accepted, 6th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in Gill-frames or Spreaders.
I, JULES DEVALLÉE, of 60, Rue Watt, Roubaix, in the Republic of France,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in gill-frames or spreaders for treating
flax or the like of the kind known as screw-gill machines in which the gills or
heckle-bars for combing the stricks of flax or the like are carried forward by a
pair of screws and dropped or forced down by cams, when they arrive near the
drawing roller, on to a lower pair of screws which carry them back to the front end
of the machine where they are again raised by cams into engagement with the
upper pair of screws. To guide the gills, which are straight and stiff, and to
break the force of the blow caused by the falling of the same, flat springs are
employed which engage in notches in the gills or heckle-bars. These notches
weaken the gills particularly at the points struck by the cams, that is to say, at the
points where they should be strongest and as a consequence of this weakening
the said bars are frequently fractured.
The cams which force down the gills or heckle-bars are also frequently broken
as they cannot be made sufficiently strong on account of the fact that their breadth
is determined by the distance between the heckle-bar to be forced down and the
next following bar and by the distance of the former from the shaft carrying the
lower drawing roller. The latter distance is very small so that the cams cannot
be made very broad or thick.
On account of these defects it is impossible for the gill-boxes to operate at a high
speed and the object of the present invention is to provide a gill-box capable of
working at a much higher speed and of producing a larger output than hitherto.
According to my invention instead of forming the gills or heckle-bars straight I
form them in such a way that their middle portions which carry the pins, are in
advance of, or project in front of, the ends of the same. With this arrangement
the before mentioned notches for the guide-springs can be dispensed with so that
the gills possess the same strength throughout and can resist the blows of the cams
and the shock of the fall much better and rise and fall with more certainty than
heretofore.
As the middle portions of the gills project, the drawing rollers must be brought
forward so as to clear the same and leave the same distance between the two as
hitherto whilst the distance between the cams of the upper screws and the shaft of
the lower drawing roller is proportionately increased, which increase I utilize for
strengthening the cams or for strengthening the shaft of the drawing roller and
the cams.
Dated the 10th day of Contohan 1005

page_text: In frames or Spreaders.
I, JULES DEVALLÉE, of 60, Rue Watt, Roubaix, 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 :-
This invention relates to improvements in gill-frames or spreaders for treating
flax or the like of the kind known as screw-gill machines and shewn in
Figures 1 and 4 of the accompanying drawing. In such gill-frames the gills or
heckle-bars B, B for combing the stricks of flax or the like are carried forward
by a pair of screws C and dropped or forced down by cams, as shewn in Figure 5,
when they arrive near the drawing roller, on to a lower pair of screws C which
carry them back to the front end of the machine where they are again raised by
cams into engagement with the upper pair of screws. To guide the gills, which
are straight and stiff, and to break the force of the blow caused by the falling of
the same, flat springs G are employed which engage in notches F in the heads E
of the gills or heckle-bars. These notches F weaken the gills particularly at the
points struck by the cams, that is to say, at the points where they should be
strongest and as a consequence of this weakening the said bars are frequently
fractured.
The cams which force down the gills or heckle-bars are also frequently broken
as they cannot be made sufficiently strong on account of the fact that their breadth
is determined by the distance between the heckle-bar to be forced down and the
next following bar and by the distance of the former from the shaft carrying the
lower drawing roller D. The latter distance is very small so that the cams cannot
be made very broad or thick.
On account of these defects it is impossible for the spreaders to operate at a high
speed and the object of the present invention is to provide a gill-box or spreader
capable of working at a much higher speed and of producing a larger output than
hitherto.
According to my invention instead of forming the gills or heckle-bars straight
I form them in such a way that their middle portions K which carry the pins, are
in advance of, or project in front of, the ends or heads J of the same in the
direction of the drawing roller D as shewn clearly in Figures 2 and 3. The parts
of the heckle-bars joining the middle portions K with the ends J are arranged at
a fixed angle to the same. With this arrangement the before mentioned notches
for the guide-springs L can be dispensed with so that the heckle-bars possess the
same strength throughout and can resist the blows of the cams and the shock
of the fall much better and rise and fall with more certainty than heretofore.
A, A are the rollers for feeding the material to be combed.
As the middle portions K of the heckle-bars project, the drawing rollers must
be brought forward so as to clear the same and leave the same distance between
the two as hitherto whilst the distance between the cams of the upper screws and
the shaft of the lower drawing roller is proportionately increased, which increase
I utilize for strengthening the cams and for strengthening the shaft of the drawing
roller and of the cams. Figures 1 and 24 shew the reels on which the material
is wound after having passed through the spreader.
In gill-frames constructed according to my invention fracturing of the heckle-
bars or of the cams is avoided and the apparatus can be run at a higher speed than
with gill-frames of ordinary construction.

page_text: 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 gill-frames or spreaders forming the heckle-bars or gills with their middle
portions projecting in advance of the ends or heads, substantially as, and for the
purposes, herein before described.
2. The improved gill-frame or spreader herein before described and illustrated in
Figure 2 of the accompanying drawing.
1000
CLC 7 GO WAY UI APLIK 1030
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.