Improvements in Tulle and Lace Making Machines.
Year: 1897

page_text: Date of Application, 6th Sept., 1897
Complete Specification Left, 4th June, 1898-Accepted, 9th July, 1898
PROVISIONAL SPECIFICATION.
Improvements in Tulle and Lace Making Machines.
I, EDOUARD JULES LEON LEULIET, of Calais, in the Republic of France,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in tulle and lace making machines
and has for its object to cause the warp thread in each stump-bar to assume
three positions instead of two as has hitherto been the case.
Owing to these improvements the advantages of the new machine over the
old forms are unlimited; I am able, in fact, to combine by its means in a
single design all the kinds of foundation, net, twisting of the threads and the
like, which hitherto have only been obtainable either separately or in groups.
The stump bar is composed of two plates between which is arranged a toothed
bar.
In the plates are provided slots having one side curved and the other side
straight, the ends being formed by two lines at right angles; these plates are
firmly fixed upon the machine, the apertures being exactly opposite each other,
and the bar provided with teeth is capable of displacement between the said
plates, the object of such teeth being to divide the apertures in the stump-bar
into two parts, as will be hereinafter explained.
68
The displacements of this toothed bar is effected by means of a jacquard
mechanism termed a coarse thread" mechanism and by means of a counter
spring.
The fine bars which are provided with eyes through which the warp-thread
passes, are likewise acted upon by counter springs; to the other extremities
of the said bars are jointed rods formed with projections or noses intended to
act in combination with the " pompes for the purpose of actuating the said
fine bars in order to bring the warp threads into the position desired. The
pompes" are parts to which is imparted a reciprocating motion.
"
"
"
.
With the object of actuating the fine bars which are capable of executing
two movements, from right to left (fall) or from left to right (rise) the rods
with projections or noses may be caused to rotate slightly around their point
of attachment to the fine-bars by means of needles acting in combination with
a fine bar " or "fine thread " jacquard mechanism. These needles are pro-
vided with a small button or knob by means of which they are able to raise
the corresponding rod, and also with a stop, the action of which will be herein-
after explained. The card moving upon the Jacquard may be provided with
two kinds of holes, one set being of the same size as the holes of the cylinder
of this mechanism, the other set being of smaller size than the stops of the
needles.
In the position of repose, and during a portion of the movement of the warp
threads, the toothed bar leaves the apertures of the stump-bar perfectly free, so
as to allow these threads to take a position either to the left. or to the right
(rise) of the said apertures.

page_text: I will now describe the action of the mechanism which has just been described.
In order that this action may be thoroughly and readily understood, I will
suppose the warp-threads to be caused to occupy positions which for convenience
I will designate 0, 2 and 1 respectively. It is obvious that all the fine-bars
of the machine might, if desired, cause the warp-thread to occupy any one of
these positions.
In order to cause the first thread to occupy the position 0, the card must
mask the hole of the cylinder of the jacquard; the unperforated card, par-
ticipating in the upward motion of the mechanism, pushes the needle upwards
thus raising the first rod with projections which rests upon the button of the
said needle.
Owing to the rotary motion of the said rod around its point of attachment
to the fine bar two of the noses of this rod pass away from and avoid the
pompes"; the said fine bar acted upon by its counter spring moves from
right to left taking with it the first rod with projections the nose of which
strikes against the " pompe." The said rod and the first fine-bar then follows
the motion of the pompe " from right to left (fall), and by reason of this
movement the first warp thread passing through the stump bar assumes the
position 0.
"
In order to cause the second thread to occupy the position 2, the card should
be perforated with a hole of the same size as those of the cylinder of the
jacquard. When the upward motion of the cylinder takes place, the hole in
the card permits the passage not only of the rod of the needle but also of its
stop in which the first fine-bar the first rod with projections and its needle
are omitted. Owing to the passage of the needle through the card this needle
remains motionless and the second rod with projections is not lifted; the nose
of this latter comes in contact with the " pompe," follows the motion of this
latter from left to right (rise) and, taking with it the second fine-bar causes
the second warp thread to occupy the position 2 in the stump-bar.
In order to cause the third thread to occupy the position 1, the card should
be perforated with a hole smaller than those formed in the cylinder of the
Jacquard; this hole should be sufficiently large to allow the passage of the rod
of the needle, but it should not be possible for the stop upon this latter to pass
through the card. Owing to this combination, when the upward movement
of the Jacquard cylinder takes place, the needle remains motionless until, its
stop coming in contact with the card (in consequence of the small size of the
hole formed in this latter through which the said stop is unable to pass) the
same effect is produced, as if the card were not perforated, the needle is lifted
and with it the third rod with projections, but to a less height than if the card
being absolutely un-perforated, opposed the passage not only of the stop of
the needle but also of the rod of this latter. Owing to the rotary motion of
the third rod around its point of attachment to the third fine-bar the nose of the
said rod avoids the " pompe," and by reason of the action of the counter-
spring of the said fine-bar this latter is drawn as is also the third rod from
right to left (fall) until the moment when the nose of the said rod which is not
sufficiently raised to avoid the " pompe comes in contact with this latter which
carries it from left to right (rise). The third fine-bar follows the movement of
the third rod with projections and consequently the third warp thread which
it guides is caused to occupy the position 2 in the stump-bar, it is precisely at
this moment that the toothed bar, which is actuated by the " coarse thread'
Jacquard, comes into action and moves from right to left in such a manner as
to stop the third warp thread and to hold it in the stump-bar in the position 1.
As above indicated, all that has been stated with reference to the actuation
of the fine bars is applicable indifferently to any one of such fine-bars and
consequently to all the fine bars of the machine each of which conducts into
the stump-bar the warp thread in the position 0, 2, or 1 according as the card
of the Jacquard is un-perforated (position 0) as in the case of the first fine-bar
"
"

page_text: perforated with a hole equal in size to those of the Jacquard cylinder (position 2)
as in the case of the second fine-bar or perforated with a hole smaller than
those of the Jacquard cylinder (intermediate position 1) as in the case of the
third fine-bar.
The great importance of such a mechanism will be readily understood, as by
reason of the three positions which may be given to the warp thread, all the
foundations, nets twistings of the threads and the like may be combined, which
with the mechanism hitherto employed can only be obtained either separately
or in
groups.
Improvements in Tulle and Lace Making Machines.
I, EDOUARD JULES LÉON LEULIET, of Calais, in the Republic of France,
Manufacturer, 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 tulle and lace making machines
and has for its object to cause the warp thread in each stump-bar to assume
three positions instead of two as has hitherto been the case.
Owing to these improvements the advantages of the new machine over the
old forms are unlimited; I am able, in fact, to combine by its means in a
single design, all the kinds of foundation, net, twisting of the threads and the
like, which hitherto have only been obtainable either separately or in groups.
In order that my invention may be readily understood, I have shewn diagram-
matically in the accompanying drawing that portion of a tulle or lace making
machine to which the improvements in question are applied.
In the said drawings:
Figure 1 shews, in front elevation, the constituent parts of a. stump-bar.
Figure 2 shews, also in front elevation, a stump bar with free apertures, and
warp threads ry z in the position of repose, and passed through the fine-bars
and the stump-bar.
Figure 3 is a corresponding side elevation, shewing the fine-bars F1 F2 F3
corresponding to the stump-bar A.
Figure 4 is a partial horizontal projection.
Figure 5 shews the stump bar with divided holes and
Figures 6 and 7 are views similar to Figures 2 and 5 illustrating the operation
of the improved machine.
As will be seen by reference to the drawings, the stump-bar A is formed by
means of two superposed bars a and D. The bar a is provided with apertures b
above which is arranged in relief a fine steel wire a which serves to set the warp
thread a little forward; the bar is rigidly fixed to the loom. The bar D is
provided with teeth d which serve to divide the apertures 6 of the bar a into
two portions, as will be hereinafter explained; this bar is movable.
The displacement of the toothed bar D are effected by means of pivoted bars
the ends of which, being passed through the slots in the toothed bar D, impart
to this latter an upward movement.
The fine bars F F F³, which are provided with an eye o through which
a warp thread passes, are likewise acted upon by counter springs f; to the other

page_text: extremities of the said bars are connected rods G1 G2 G³, provided with pro-
jections or noses g, h and i intended to act in combination with the reciprocating
bars G and I for the purpose of actuating the said fine-bars in order to cause
the warp threads x y z to occupy one of the positions 0, 1 or 2 as desired. The
said reciprocating bars are parts to which is imparted a reciprocating motion
in the direction indicated by the arrows in Figure 4 of the drawings.
66
"
With the object of actuating the fine-bars F1 F2 F3, which are capable of
executing two movements, either from right to left (fall) or from left to right
(rise), the rods G1 G2 and G³ may be caused to rotate slightly around their
points of attachment to the fine-bars by means of needles L1 L2 L³ acting in
combination with a
fine-bar" ог fine-thread Jacquard mechanism J. These
needles are provided with a small button or knob 7, by means of which they are
able to raise the corresponding rod, and with two points and 12, the purpose of
which will be hereinafter explained. The card j moving upon the Jacquard J
may be provided with two holes, of the same size as the holes in the cylinder
of this mechanism.
'
In the position of repose (Figure 2), and during a portion of the motion of
the warp threads x y z, the toothed bar D leaves the apertures 6 of the stump-
bar A perfectly free, in order to enable these threads to assume a position
either to the left (fall) or to the right hand (rise) of the said apertures; when
at rest the fine bars occupy the position represented in Figure 2.
I will now describe the action of the mechanism which has just been described.
In order that this action may be thoroughly and readily understood, I have
shewn this mechanism in Figure 5 of the drawing, the warp threads x y z being
caused to occupy the position 0, 2 and 1 respectively. It is obvious that all the
fine-bars of the machine might, if desired, cause the warp thread to occupy any
one of these three positions.
In order to cause the thread a to occupy the position 0, the card j must mask
the two holes of the cylinder of the Jacquard J; the un-perforated card, partici-
pating in the upward motion of the mechanism, pushes the needle L¹ upwards,
thus raising the rod G¹ which rests upon the button 7 of the said needle.
Owing to the movement of rotation of the rod G¹ around its point of attachment
to the fine-bar F¹, the noses h and i of this rod pass away from and avoid the
reciprocating bar I; the said fine-bar F1 being acted upon by its counter
spring f, moves from right to left taking with it the rod G¹ the nose g of which
strikes against the reciprocating bar G. The rod G¹ and the fine-bar F¹ then
follow the motion of the said reciprocating bar G from right to left (fall) and
owing to this movement the warp thread a passing through the stump-bar A,
assumes the position 0.
In order to cause the thread y to assume the position 2, the card j should
be perforated with two holes of the same size as those of the cylinder of the
Jacquard J. When the upward motion of the cylinder takes place, the holes
perforated in the card j enable the passage of the two points and 12 of the
needle L³, as shewn in Figure 6 of the drawing, in which the fine-bar F¹,
the tension rod G¹ and its needle L' are omitted. Owing to the passage of the
points and of the needle L₁ through the card j, this needle remains motion-
less and the rod G2 is not raised; the nose i of this latter comes in contact with
the reciprocating rod I, follows the motion of this latter from left to right
(rise), and, taking with it the fine bar F2, causes the warp thread y to occupy
the position 2 in the stump bar A.
In order to cause the thread z to occupy the position 1, the card j should be
perforated with a hole corresponding to the point of the needle and should
mask the hole corresponding to the point 12. Owing to this combination, when
the upward movement of the cylinder of the Jacquard takes place, the needle L
remains immovable until the moment at which the point, its point being
in engagement with its corresponding hole, comes in contact with the card j;
the same effect is then produced (as shewn in Figure 7, in which the fine-bars F¹

page_text: F, the rods G G and their needles L¹ L2 are omitted) as if the card ; were
not perforated, the needle L³ is raised and with it the rod G3, but to a less height
than if the card j, being absolutely unperforated, opposed the passage of the
point of the needle. Owing to the movement of rotation of the rod G³ around
its point of attachment to the fine-bar F3, the nose i of the said rod avoids the
reciprocating bar I, and, by reason of the action of the counter-spring f of the
fine-bar F3, this latter is drawn, as is also the rod G3, from right to
left (fall) until the nose h of the rod
G³, which is not sufficiently
raised to avoid the reciprocating bar I, comes into contact with this latter
which moves it from left to right (rise). The fine-bar F3 follows the movement
of the rod G3; and consequently the warp thread z which it guides, will assume
in the stump bar A the position 2; it is precisely at this moment that the toothed
bar D, which is raised by the ends of the aforesaid jointed bars is displaced
upwardly in such a manner as to stop the warp thread z and cause it to occupy
the position 1 in the stump bar.
As above indicated, all that has been stated with reference to the actuation
of the fine bars F1 F2 F3 is applicable to any one of such fine bars, and conse-
quently to all the fine bars of the machine, each of which should conduct the
warp thread into the position 0, 2 or 1 in the stump-bar A, according as the
two holes of the card of the Jacquard J are masked (position 0) as in the case
of the fine bar F1, or as the card is perforated with two holes equal to those of
the cylinder of the Jacquard (position 2) as in the case of the fine bars F2, or
finally as the card is perforated with a hole corresponding to the point of the
needle and of the cylinder of this Jacquard (intermediate position 1) as in the
case of the fine bar F3.
The great importance of such a mechanism will be readily understood, as,
by reason of the three positions which may be given to the warp thread, all
the foundations, nets, twistings of the threads and the like may be combined,
which can only be obtained either separately or in groups with the mechanism
hitherto employed.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. A stump bar (A) formed by the combination of a bar (a) rigidly secured
upon the loom and provided with apertures (b) with a toothed bar (D) actuated
by jointed bars, the object of this bar being to divide the apertures (b) of the
stump-bar (A) into two portions and to maintain the warp thread in the inter-
mediate position 1, substantially as described with reference to the accompanying
drawing.
2. A mechanism for actuating the fine-bars comprising a "fine-thread "
Jacquard mechanism (J) the card (2) of which may be either full, perforated
with two holes equal in size to those formed in the cylinder of the mechanism,
or with a single hole, the said card causing the displacement of the fine-bars
by means of needles provided with two points (11 and 19) such needles acting
upon rods pivoted to the fine-bars, these rods being provided with noses (ghi)
intended to act in combination with the reciprocating bars (G, I) governing the
displacements of the fine-bars, substantially as described with reference to the
accompanying drawing.
T
1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.