Improvements in Embroideṛing Machines.
Year: 1893

page_text: Date of Application, 8th May, 1893
Complete Specification Left, 21st Nov., 1893-Accepted, 23rd Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Embroideṛing Machines.
We, EMILE CORNELY and ROBERT CORNELY, both of 87 Faubourg St. Denis,
Paris, France, Manufacturers of Sewing Machines, do hereby declare the nature
of this invention to be as follows :―
This invention relates to improvements in embroidering machines.
In the Specifications to Patents No. 2482 of 1877 and No. 2483 of 1882 machines
are described for producing several rows of chain stitches by means of several
needle hooks and out of a single thread by means of an oscillating looper which
lays its thread around the needles, after which said thread is pushed forward by
means of blades between the needle hooks which upon rising draw their thread loop3
upward and lay them on the upper side of the cloth.
The said blades provide the needle hooks with the length of thread which is
necessary for the production of the stitch.
The object of the present improvement is to do away entirely with said blades
and thus to simplify the machine considerably.
On the accompanying drawings
--
Figures 1, 2, 3 and 4 represent enlarged views of the organs which produce the
stitch and Figure 5 represents the arrangements of the operative parts below the
bed plate of the machine.
An auxiliary needle B is secured behind the needle hooks A. and moves up and
down with the latter; the auxiliary needle B does not participate in the production
of the stitch and need therefore possess none of the qualities of an operative needle
such as hook or eye. When the needles A and B have passed through the material
they descend further down into the hollow of the oscillating thread looper C which
now winds its thread around them (Fig. 1 & 2) and when the three needles rise
together the hooks A pull upward their loops while the auxiliary needle B keeps
the thread spread so as to present a triangle A, A, B, (Fig. 2) when seen in top
view.
When the needles rise further the thread arrives at the lower face of the needle
plate E, and there it slides off from the auxiliary needle B, and the length of the
thread which is thus set free is immediately taken up by the further upward motion
of the hooks A, and they thus receive the supply which is necessary for their
stitches without the aid of any supplying blades which can thus entirely be
dispensed with.
When three needle hooks are employed for producing three rows of chain
stitches, either two supplementary needles B must be employed, or, when only one
is employed it must be set at a sufficient distance from the hooks A to supply them
with the length of thread which is necessary for the production of their stitches.
The needle plate E must have three holes for the passage of the three needles
above described but the two holes of the needle hooks A are united by a slot, as
represented on an enlarged scale at Fig. 7, and when the machine works with a
full crank motion the needle plate must turn together with the needles and with
the crank handle G.
For this purpose the circular needle plate E is- set into a circular recess in the
wheel F and is prevented from turning therein by the pin a (Figs. 6 and 7) and it
can be turned by the crank handle G by means of the pinions H, I, tube K,
pinions L M and wheels N and F.
1000

page_text: COMPLETE SPECIFICATION.
Improvements in Embroidering Machines.
We, EMILE CORNELY, and ROBERT CORNELY, both of No. 87 Faubourg
St. Denis, Paris, France, Manufacturers of Sewing Machines, 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 embroidering machines.
In the Specifications to Patents No. 2482 of 1877 and 2483 of 1882, machines
are described for producing several rows of chain stitches by means of several
needle-hooks, and out of a single thread by means of an oscillating looper which
lays its thread around the needles, after which said thread is pushed forward by
means of blades between the needle hooks which upon rising draw their thread
loops upward and lay them on the upper side of the cloth. The said blades
provide the needle hooks with the length of thread which is necessary for the
production of the stitch.
The object of the present improvement is to do away entirely with the said
blades and thus to simplify the machine considerably.
On the accompanying drawings :-
Figures 1, 2, 3 and 4 represent enlarged views of the organs which produce the
stitch;
Figure 5 represents the arrangements of the operative parts below the bed plate
of the machine,
Figures 6, 7 and 8 are details hereafter to be referred to.
An auxiliary needle B is secured behind the needle hooks A, and moves up and
down with the latter; the auxiliary needle B does not participate in the production
of the stitch and need therefore possess none of the qualities of an operative needle
such as hook or eye. When the needles A and B have passed through the material
they descend further down into the hollow of the oscillating thread looper C which
now winds its thread around them (Figs. 1 and 2) and when the three needles rise
together the hooks A pull upward their loops while the auxiliary needle B keeps
the thread spread so as to present a triangle A A B (Fig. 2) when seen in top
view.
When the needles rise further the thread arrives at the lower face of the needle
plate E and there it slides off from the auxiliary needle B, and the length of the
thread which is thus set free is immediately taken up by the further upward motion
of the hooks A, and they thus receive the supply of thread which is necessary for
their stitches without the aid of any supplying blades which can thus entirely be
dispensed with.
When three needle hooks are employed for producing three rows of chain stitches,
either two supplementary needles B must be employed, or when only one is
employed it must be set at a sufficient distance from the hooks A to supply them
with the length of thread which is necessary for the production of the stitches.
The needle plate E must have three holes for the passage of the three needles
above described but the two holes of the needle hooks A are united by a slot, as
represented on an enlarged scale at Figure 7, and when the machine works with a
full crank motion the needle plate E must turn together with the needles and with
the crank-handle G.
For this purpose the circular needle plate E is set into a circular recess in the
wheel F, and is prevented from turning therein by the pin a (Figs. 6 and 7) and it
can be turned by the crank-handle G by means of the pinions H I tube K
pinions L M and wheels N and F.
In above described machine the auxiliary needle B can also be arranged to come
from below the needle plate.
1

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
In embroidering machines working with several hooks and one single thread, the
employment of one or more supplementary needles B for supplying the thread to
the needle hooks A substantially as described and illustrated.
Dated this Twenty-first day of November 1893.