In- PROVEMENTS IN OR IN CONNECTION WITH EMBROIDERING MACHINEs
Year: 1875

page_text: PROVISIONAL SPECIFICATION left by Simon Ferdinand Viéville at
the Office of the Commissioners of Patents, with his Petition, on
the 17th June 1875.
I, SIMON FERDINAND VIEVILLE, of 2, Rue Sainte Appoline, Paris,
France, do hereby declare the nature of the said Invention for "In-
PROVEMENTS IN OR IN CONNECTION WITH EMBROIDERING MACHINEs," to be as
follows:-
The object of my Invention is to dispense with the employment of
lengths of threads in embroidering machines known as "Heilman's," as
well as with the periodical threading of the needles, and to substitute for
the lengths of threads a continuous thread or threads.
It will be understood that different mechanical arrangements can be
employed for obtaining this result, but as a rule in the "Heilman"
machine the eye of the needle through which the thread passes is in the
middle of the needle, which latter has two points.
According to my Invention the eye of the needle is formed towards
the point as in sewing machine needles, and my needles have only one
point. Each needle is provided with its corresponding bobbin of thread;

page_text: '
the needles are guided into the fabric by carriages or frames similar to
those now used, and all the needles are regulated by the same
mechanism which causes them to operate all at the same time. When
the needles have traversed the fabric and the loop is formed shuttles
corresponding with each needle pass through each loop.
5
To carry out my Invention I take the ordinary frame of an Heil-
man machine with the part where the fabric is stretched by rollers and
moved by a pantograph. I however reserve to myself the right of,
changing the shapes and dimensions of the frame, in order to make
the machine more simple, and that it may occupy less room than 1
heretofore.
The continuous thread which is intended to produce the embroidery
is wound on the bobbins, then threaded through the needles fixed at one
end in the needle carrier; opposite each needle carrier there is a shuttle
carrier; this shuttle carrier is fixed like the needle carrier on a long bar, 1
trapezoidal in section.
For the embroidering the threads require to have a varied tension. To
obtain this result I have fitted on the carriage carrying the needles two
parallel bars having hooks or eyes corresponding to each bobbin; the
thread of each bobbin passes through two hooks or eyes, one on each 2
bar before being threaded through the needle carriers, and thence to the
needles; one of these bars is fixed and the other is movable; this latter
receives longitudinal to-and-fro motion which causes the hooks or eyes.
to slope or slant more or less according to the patterns.
!
In order to obtain a regular tension of the threads on the bobbins I 2
make the top of the spindles which carry the bobbins flat, and on the
top of the latter I place a counterweight on each of the flat portions;
these weights produce a constant friction on the bobbins, while at the
same time they are free to revolve in order to deliver the thread with a
regular tension.
The shuttle slides on the end of the shuttle carrier driven by the
shuttle driver, which is attached on a rod supported by levers.
The material to be embroidered is placed between the needles and
shuttle carriers, stretched as usual between rollers supported by a frame
and actuated by the pantograph.
8
8

page_text: The threaded needle and the continuous thread in the shuttle being
carried through the hole of the shuttle carrier is fastened to the material,
and then the operation takes place as follows:-By turning the crank
handle which is keyed on the same axis as the pinion which imparts a
rotary motion to the wheels which are fixed at the ends of axle, on their
axles are placed eccentrics which according to their shape (by means of
rollers which are carried at the ends of an axle in connection with
arched frame) give a backward motion to the carriages; one or more
levers provided with a weight produce pressure on carriage which carries
the arched frame by means of a connecting rod, whereby the arched
frame is compelled to follow the eccentric, this movement pushes down
the needle through the material, and also through the shuttle carrier, a
backward motion having been imparted by the eccentric a loop is
formed in the thread, in which loop passes the shuttle, being pressed by
the shuttle driver, which itself receives motion from another eccentric
by means of a roller fixed on a lever joined to the shaft which carries
the levers, which descend by their own weight which they do at the
proper time as soon as the eccentric allows them. The shuttle drivers
are intended to raise the shuttles, which latter again descend by their
own weight, which however is not always sufficient; in order to have a
regular motion there is a bar on the shuttles where there are some
auxiliary shuttles which rise with it and raise the said bar, the weight of
which causes all the shuttles to descend at the same time.
When the shuttle is at the end of its course the needle leaves the
material, fixing by its proper thread the shuttle thread in the material.
As soon as the needle leaves the material the pantograph is caused to
operate according to the design to be executed.
The machine operates two rows of needles and shuttles. The shaft
being driven by connecting rod which unites the levers.
Although my Invention consists in the employment of needles and
shuttles of whatever shape they may be, and of whatever construction
of sewing machine used for the embroidering machine known as
"Heilman's," the material being operated either by a pantograph or any
other motor.
I also claim the improvement which I have made in the shuttle,
which while being of great simplicity has also the advantage of
imparting an oven tension to the thread which it contains, and for

page_text: preventing it from twisting during its work, and finally for its economy
in manufacture as well as that of the shuttle carriers which it slides.
All shuttle carriers heretofore used have the inconvenience of an
irregular tension produced by the extreme reduction of the length of the
spring, which serves as the thread tension or other imperfect means
employed to obtain it. The shuttle is formed of an external envelope
which receives a long spring rivetted at one end, the end opposite to the
rivetted end abutting on the thread issuing from the spool contained in
the shuttle; the thread is retained by the end of the spring on a point
formed near the point of the shuttle, it passes through an aperture which
is formed there, and thence through two other apertures formed in one
of the sides of the said shuttle in such manner that the thread does not
rub in the shuttle carrier.