Year: 1886

page_text: I EMIL CORNELY of 87 Faubourg St. Denis, Paris, France, Manufacturer do
hereby declare the nature of this invention to be as follows:-
The present Invention consists in certain improvements on the machine shown
and described in Letters Patent dated 13 July 1883 N° 3456 which have been
found necessary for the proper operation of the machine.
On the accompanying sheet of Drawing Figure 1 represents an elevation of the
head of the machine together with the improvements which are the substance of
the present invention.
•
Figures 2. 3 and 4 are detached views hereafter to be referred to.
&
In the patent No 3456s it has been explained that the shaft A. and its cam B
operate the lever C, which is pivoted at D, and that the lever C drives a slide d,
which plays within the block E and which operates a pair of scissors p, which are
secured to the plates m, o.
The cutting scissors p cut the loop of the thread in two after it has been drawn
by the hook needle above the cloth, and thus produce a work which resembles
velvet or plush or peluche.
It has been found necessary to provide the machine with an apparatus which
carries off each loop after it shall have been cut by the scissors, to prevent it from
dropping within the circular feed surface M, as in that case it would be worked
into the material by the consecutive stitchings and thus the work would lose its
fine appearance.
.
This is accomplished by means of a system of rotary brushes K which are secured
upon suitable arms of a wheel G which is secured to the shaft L. The shaft L is
sustained by the brackets N, which are secured to the head of the machine and it
is driven from the main shaft A, by means of the pinions W, S, pulleys or toothed
wheels P, Q and cord or chain R.
As the brushes must be adjusted closely to the feed surface M they must be able
during their rotations to rise and to descend with the feed surface in its operations.
For this purpose a sleeve O is secured to the shaft L and a stud 7 on the upper
part of the feed bar F, extends into a recess of the horizontal part of sleeve O.
Thus when the feed bar F rises and falls; the shaft L and the brushes K follow
the same movement in conjunction with the feed surface M; as is necessary for the
proper operation of the machine. The connection of the shaft L with the feed
bar of the machine may be made by any other means than those herein described.

page_text: As the brushes K rotate, they strike against the needle and they carry off the
cut loops and throw them out away from the work. To prevent any of the cut
loops from adhering to the brushes these latter strike against the pins 5 and 8
which are secured to the head of the machine. The stud 8, within the circular
feed M is besides provided with a shield 9, to prevent any of the cut fibres from
lodging in the rear part of the feed M.
C. (Figures 1 and 3) represents a shield which is connected with the shaft L but
cannot turn with it. The stud 5 extends into the slot 6 of the said shield and thus
prevents it from moving. The object of the shield C, is to prevent any contact of
the material with the brushes K, whereby the material might be carried away by
the movement of said brushes.
In needle hook embroidering or sewing machines, the thread is wound around
the needle hook by an oscillating looper T, and as the needle hook rises it draws
upward the loop from the thread which has been wound around it, but to enable
the needle hook to perform its work it' is necessary that the thread should always
have a certain degree of tension, which is obtained by means of the tension
spring t, Figures 1 and 2, through which the thread passes from the spool S into
the looper T. The spring t, by its elasticity, holds the thread tightly around the
needle and prevents any fail stitches, it has therefore always been employed on
hook needle embroidering machines.
On the present machine, when the loop has been cut by the scissors p the
elasticity of the spring t has a tendency of drawing the loose end of the, thread
downward, whereby the machine becomes unthreaded very frequently and must
therefore be threaded very often. To prevent this difficulty I have applied a pair
of plyers X Y through which the thread passes and which close upon the thread
and hold it tightly at the moment when it is cut by the scissors and which thus
prevent it from being drawn downward by the spring T. The opening and closing
of the jaw X against the jaw Y is effected by the action of the conical cam p¹
which is secured to the reciprocating looper bar n; the Conical cam p¹ strikes
against a friction roller w of the lever k which acts upon, shaft i and upon its
lever h, to which the jaw X is secured so as to open the latter; upon the return of
cam p¹ the spring m acts in the opposite direction and closes the jaw X upon the
thread and upon the fixed jaw Y and holds it tightly while it is cut by the
scissors.
'

page_text: Improvements in Embroidering Machines..
I EMIL CORNELY, of 87 Faubourg St. Denis, Paris, 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:
The present invention consists in certain improvements on the machine shown
and described in letters patent dated 13th July 1883 N° 3456, which have been
found necessary for the purpose of the proper application of the machine.
Figure 1 represents an elevation of the head of the machine.
Figures 2, 3, 4, 5, 6, 7, 8, 9 10 11 and 12 represent detached views hereafter to
be referred to. In the Patent N° 3456 it has been explained that the shaft A and
its cam B operate the lever C, which is pivoted at D and that the lever C, drives
a slided which plays within the block E and which operates a pair of scissors P,
which are secured to the plates m o. The cutting scissors p, cut the loop of the
thread in two after it has been drawn by the hook needle above the cloth and thus
produce a work which resembles velvet or plush or peluche.
It has been found necessary to provide the machine with certain apparatus to
carry off each loop after it shall have been cut by the scissors, to prevent it from
dropping within the circular feed surface M, as it would be worked into the
material by the consecutive stitchings and thus the work would be of bad
appearance.
This is accomplished by means of a system of rotary brushes K, which are secured
upon suitable arms of a wheel G which is secured to the shaft L. The shaft L is
sustained by the brackets N, which are secured to the head of the machine and it is
driven from the main shaft A by means of the pinions W, S, pulleys or toothed
wheels P, Q, and cord or chain R. As the brushes K are liable to rapid wear their
number is limited as much as possible and two of them, or one even, may be
sufficient, inasmuch as they have to act only upon the needle after the thread has
been cut, as shewn at Fig. 4, and the speed of their shaft L is timed in such a
manner that they will act at the proper moment. They must operate closely to the
feed surface M and if they turn at a high speed they must rise and descend with
the feed surface during their operation.
For this purpose a sleeve ☐ is secured to the shaft L and a stud 7, on the upper
part of the feed bar F, extends into a recess of the horizontal part of the sleeve O.
Thus when the feed bar F rises and falls, the shaft L and its brushes K follow the
same movement in conjunction with the feed surface M. The connection of the
shaft L with the feed bar F of the machine may be made by any other means than
those above described. When the brushes K make one turn only to each revolution
of the main shaft A, they are in an opposed position to the feed surface M, when
the latter rises, and can thus not come in contact with the same, and in this latter
case they need not be connected with the feed bar F to rise and to descend with
the feed M (Fig. 3),

page_text: As the brushes K rotate they strike against the needle and they carry off the
cut loops and throw them away out from the work. To prevent the cut loops
from adhering to the brushes K those latter strike against the pins 5 and 8 which
are secured to the head of the machine. The stud 8 within the circular feed M is
further provided with a shield 9 to prevent the cut fibres from lodging in the rear
part of feed M.
Upon working with silk thread the cut off loops are more or less torn by the
brushes and are thus spread like a light down over the work, thus injuring its
appearance; to prevent this inconvenience I apply a blast of air to the machine,
which, by means of suitable air tubes, is conducted closely to the needle to drive
away said down as soon as it is formed and before it settles on the material.
This blast may be created either by a rotating ventilator or by a pair of bellows
driven either by the machine treadle for each machine, or by power when to be
supplied to a number of machines at a time, and its construction and disposition
may be varied infinitely. In Fige 12 and 13 I have represented a rotating venti-
lator H which turns within its box I, which is attached to the stand or table of
the machine, it is driven from the fly wheel U by means of a cord, and its blast
is conducted upward along the head of the machine through the tubing V and
issues near the needle hook to act in the manner above described; but I do not
limit myself to said arrangement by which I only want to show one of the
dispositions to apply a blast to the machine.
c. figs. 1 and 3, represent a shield which is connected with the shaft L but which
does not turn with it. The stud 5 extends from the head of the machine into the
slot 6, of the shield c¹ and thus prevents it from moving. The object of the shield o
is to prevent the brushes K from coming in contact with the material, whereby it
might be carried away by them.
"
In needle hook embroidering machines, the thread is wound around the needle
hook by the oscillating looper T, and as the needle hook rises it draws upwards the
loop from the thread which has been wound around it; but to enable the needle-
hook to perform its work well, it is necessary that the thread should always have
a certain degree of tension, which is obtained by means of the tension spring t,
figs. 1 and 2, through which the thread passes from the spool 5 into the looper T.
The spring t, by its elasticity holds the thread tightly around the needle and
prevents any fail stitches, it has therefore always been employed on hook needle
machines. In the present machine, when the loop has been cut by the scissors p,
the elasticity of the spring t has a tendency of drawing the loose end of the thread
downward, whereby the machine becomes unthreaded easily. To prevent this
difficulty I have applied a pair of plyers X Y, through which the thread passes
and which close upon the thread and hold it tightly at the moment when it is cut
by the scissors, and which thus prevent it from being drawn downward by the
spring t. The opening and closing of the jaw Y is effected by the action of the
conical cam p¹, which is secured to the reciprocating looper bar n, the conical
cam p¹ strikes against a friction roller n¹, of the lever k, which acts upon shaft i
and upon the lever h, to which the jaw X is secured so as to open the latter. Upon
the return of cam p₁ the spring m¹ acts in the opposed direction and closes the
jaw X upon the thread and against the feed jaw Y, and holds it tightly while it
is cut by the scissors.
The scissors P of the machine, as explained and represented in the patent 3456 of
13th July 1883, are represented at Figs. 5, 6, 7 and 8.
To make these scissors to cut well, their blades must be very slightly inclined
one towards the other and they must be pressed together by a spring which
ensures always a close contact of the blades; this result is obtained by means of
the device represented at Figs. 7 & 8. o and, m, are the plates to which the scissors
are secured and which produce their movement; the circular part 2 of plate o, is
fitted into the sleeve 3 of plate m the pivot axle a, is passed through them and is
secured to the block E by means of screw b; the spring 4 on stud a thus presses
against the plates m and o and spreads them one from the other, but inasmuch as

page_text: the lower scissor blade is attached to the upper horizontal plate o, and the upper
scissor blade to the lower horizontal plate m, the two scissor blades are thus
constantly pressed together by the spring 4 on stud a.
In Figs. 9, 10, & 11 I have represented a device for grinding the scissor blades
automatically.
d represents the little fly wheel of the machine, f an emery wheel attached to
it; g is a stud fixed to the end of the wheel shaft on which a box x is fitted which
can slide thereon freely; upon said box a frame 9 is fitted in proper ways which can
be adjusted from or toward the stud g by means of the set screw v.
The blade p
to be ground is set upon the studs 11 and 12 of the oblique part 10 of frame 9 and
is securely fixed in said position by means of clamp and its screw u; the angle
of the plate 10 is the supplementary angle of the scissor blade which is thus
presented to have its edge always presented perfectly true to the circumference of
the emery wheel f, and upon turning the latter the edge of the scissor blade will
be ground very accurately.
An apparatus independent of the machine and driven separately by the strap
from the fly wheel may be employed instead of the one adjusted upon the stud of
the main shaft.
For certain kinds of work where greater strength is required on the velvet work
produced by the cutting machine a second thread will be advantageously employed
which is wound around each stitch at the under side of the material. The operation
of winding this second thread around each stitch at the underside of the material
has been shown and described in letters Patent No. 212 of the 19th January 1876,
and particularly in fig. 7 of the drawings, and the corresponding description
thereof need therefore not be repeated here, but as its application is for another
purpose than the one mentioned in letters patent No 212 I hereby refer to it
especially.
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. The application of revolving brushes to the cutting apparatus of embroidering
or sewing machines for the purpose of removing the cut off loops from the needle,
substantially as herein described.
2. Connecting the shaft of the revolving brushes to the feed bar of a sewing or
embroidering machine in such a manner that they may rise and descend with the
feed of the machine during their operation.
3. In connection with the revolving brushes herein described, the shield c to
prevent their contact with the material.
4. The method herein described for holding the thread tightly while the loop is
cut, to prevent the tension spring from acting upon the thread at a certain
moment.
5. The transmission of the motion from the main shaft A to the shaft L of the
brushes by means of the pinions W, S, pulleys or wheels P, Q, and cord or chain,
substantially as set forth."
6. The application of a spring to the scissor blades of the machine in such a
manner that they will be always pressed one against the other during their
operation, so that the cutting edges of their blades can be set slightly inclined one
towards the other and shall always be in contact.
Dated this Twenty ninth day of June 1886.