Improvements in Overseaming and Embroidering Machines.
Year: 1892

page_text: Date of Application, 11th Feb., 1892
Complete Specification Left, 10th Nov., 1892-Accepted, 4th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in Overseaming and Embroidering Machines.
We ЕMILE CORNELY and ROBERT CORNELY of 87 Faubourg St. Denis Paris,
in the Republic of France, Manufacturers, do hereby declare the nature of this
invention to be as follows:-
The present invention relates to improvements in the machines described
and claimed in the Specification to our Letters Patent No. 17,128 of
24th November 1888 and that No. 1705 of 30th Jannary 1891 and will be readily
understood from the following description reference being had to the accompanying
sheets of drawing upon which :-
Figure 1 represents a side view of the machine.
Figures 2 and represent sectional side views of the machine containing the
stop motion acting on the short arm of the break lever.
Figure 4 represents the stop motion cam.
Figures 5, 6 and 7 represent side views and vertical sections through the needle
bar holder.
Figures 8 and 9 represent cross sections through the needle bar holder.
Figure 10 represents a top view of the needle bar holder.
Figures 11 and 12 represent section and top view of that part of the machine
within which the thread looper is operated.
Figure 13 represents a section through the central tube of the machine showing
the passage of the thread from the bobbin down towards the rotating thread
carrier.
Figure 14 represents an elevation of that part of the machine which supports
the central bobbin together with those organs and parts which are between said
bobbin and the cloth plate.
Figure 15 represents the circular plate on which the central bobbin turns.
Figure 16 represents a detached view of the nipple tube; nipple; rotating thread
carrier and its accessories.
Figures 17, 18, 19, 20, 21 and 22 represent detached views and sections of the
single and double thread looper.
Figure 23 represents the improved bobbin to be applied to the central tube of
the machine.
BRAKE LEVER ON CENTRAL BOBBIN K.
The principle of this brake lever was described in the Specifications above
mentioned in which the said brake lever T was described as operated by means of
the crank handle W, but inasmuch as the feed and the stop motion of the machine
are already operated by said crank handle it was found necessary to operate the
brake lever T automatically by the machine to relieve the operator, this is obtained
by the action of the grooved cam O, Figures 1, 2 and 3 of the stop motion which
must be explained to understand the operation. By pressing down the crank
handle W Figure 1 the lever L will draw the rod M downward as represented at
Figures 1 and 3, in this position the lever N can freely swing on its stud a when
its upper end is moved forward and backward by the action of the groove of cam O
which in this position is pushed to the right by the action of the spring Z, so that
its coupling pin 9 will enter into the hole of the coupling disc 11 which is secured
to the driving shaft 12. In this position of the parts, the machine is thrown in
gear and turns, but as soon as the pressure on the crank handle W is released the
Peine 8d.l

page_text: the thread of the spool K a take up 41 is arranged on the upper part of the thread
carrier C Figure 16.
'
The thread carrier in its rising and descending motion, explained in the Specifi-
cation to Letters Patent No. 14,255 of November 5th 1886, thus by means of its
take up 41 tightens the thread at each stitch as it issues from the opening 39
Figure 16.
A box S Figure 14 which is secured to the frame of the machine prevents any
threads or fibres from coming in contact with the pinions G and G₁ and with the
turning plate r.
For working on this machine with a single needle a single thread looper can be
employed as represented at Figures 17, 18, 19 and 20 which has certain advantages
over the one claimed in the Specification to our Letters Patent of January 30th 1891.
No. 1705 and represented Figures 21 and 22. It is composed of two parts, the
plug X which is set into the exentric hole of screw shaft I Figure: 11 and of the
plate Y which holds it in its place. The concentric part 43 and the. excentrio
part 44 of the plug X fit into corresponding recesses of the hollow screw shaft k
and thus prevent said plug from turning therein, it thus participates in the
oscillations of screw shaft I and its thread tube 45 oscillating around the needle
winds its thread around it in the ordinary manner for producing the scam. The
plate Y is held to the wheel V by means of the circular bolt m represented Figure 12.
Figure 23 represents a bobbin which is to be employed on the central tube E of
this machine. Its central part A' is turned out of wood and its sides B³ are made
of hard paste board and are firmly secured to the central part A' by means of
strong glue. A very light bobbin is obtained in this manner. Instead of wood
for the central part A' any other material may be employed to which the glue
adheres firmly.
Dated this Eleventh day of Februar 1800
COMPLETE SPECIFICATION.
Improvements in Overseaming and Embroidering Machines.
We EMILE CORNELY and ROBERT CORNELY. of 87 Faubourg St. Denis Paris,
in the Republic of France, Manufacturers, 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 relates to improvements in the machines described
and claimed in the Specification to our Letters Patent No. 17,128 of
24th November 1888 and that No. 1705 of 30th January 1891 and will be readily
understood from the following description reference being had to the accompanying
sheets of drawing
BRAKE LEVER ON CENTRAL BOBBIN K.
:
The principle of this brake lever was described in the Specifications above
mentioned in which the said brake lever T was described as operated by means of
the crank handle W, but inasmuch as the feed and the stop motion of the machine
are already operated by said crank handle it was found necessary to operate the
brake lever T automatically by the machine to relieve the operator, this is obtained
by the action of the grooved cam O, Figures 1, 2 and 3 of the stop motion which
must be explained to understand the operation. By pressing down the crank
handle W Figure 1 the lever L will draw the rod M downward as represented at
Figures 1 and 3, in this position the lover N can freely swing on its stud a when its
upper end is moved forward and backward by the action of the groove of cam O

page_text: through the tension thread guides 40 Figure 14 into the revolving thread
carrier C, the slot 42 Figure 15 which communicates with hole 38 serves for the
introduction of the threading wire, which draws the thread down through the
channel 39. For certain kinds of work where a strong tension is needed on
the thread of the spool K a take up 41 is arranged on the upper part of the thread
carrier C Figure 16.
The thread carrier in its rising and descending motion, explained in the Specifi-
cation to Letters Patent No. 14,255 of November 5th 1886, thus by means of its
take up 41 tightens the thread at each stitch as it issues from the opening 39
Figure 16.
A box: S Figure 14 which is secured to the frame of the machine prevents
any threads or fibres from coming in contact with the pinions G and G¹ and with
the turning plate r.
For working on this machine with a single needle a single thread looper can be
employed as represented at Figures 17, 18, 19 and 20 which has certain advantages
over the one claimed in the Specification to our Letters Patent of January 30th 1891
No. 1705 and which is represented Figures 21 and 22. It is composed of two
parts, the plug X, which is set into the eccentric hole of screw shaft I Figure 11
and the plate Y which holds it in its place. The concentric part 43 and the
eccentric part 44 of the plug X fit into corresponding recesses of the hollow screw
shaft I and thus prevent said plug from turning therein, it thus participates in the
oscillations of screw shaft I and its thread tube 45 oscillating around the needle
winds its thread around it in the ordinary manner for producing the seam. The
plate Y is held to the wheel V by means of the circular bolt m represented
Figure 12.
When the machine is to work with two needles which are set close together the
throw of the eccentric of the looper piece w Figures 24 and 26 must be shorter than
it would be required when the space between the needles is larger. For this
purpose an additional eccentric d Figures 25 and 27 is employed which is adjusted
into the eccentric hole of the screw shaft I as represented at Figure 24 and
the cylindrical part e of the looper piece w is then inserted into the eccentric d.
Thus by employing suitable eccentric rings as represented Figures 25 and 27 the
needles can be set at any desired space one from the other without changing
anything in the construction of the machine. Instead of the very thin tubes h i,
needles can be employed as represented Figure 28.
Figures 29, 30, 31 and 32 represent elevations and plan of the presser foot in
connection with its operation on the cloth plate of the machine. On the machines
constructed heretofore the needle plate 42, is set into a cavity of the cast iron
table 43 of the machine and there has always been a certain difficulty in adjusting
the needle plate 42 within the table 43 so that the two shall present a level surface
on which the presser foot 44 can operate, for otherwise said presser foot will
encounter the edge of the one or of the other of said surfaces when it is
operated in various directions and thus the lengths of the stitches are not the same
in various directions in which the embroidery work is produced. To obviate this
difficulty a counter plate 45 is sunk into the table 43 in front of the needle plate 42
joining closely the latter and it is secured to said table by means of screws
or otherwise. As said counter plate is a separate part which can easily be worked
it can always be adjusted very accurately so as to present a perfectly even
and level surface with the needle plate 42 on which the presser foot can work
as perfectly as if the two were made of one single piece of metal.
In Figure 1 a mechanism is represented for throwing the motion of the revolving
thread carrier C in and out of gear at the pleasure of the operator without stopping
the motion of the machine. For this purpose the pinion 46 which drives the
revolving thread carrier C by means of the pinions 47, 48, 49, 50, G¹ and G is not
rigidly secured to its main shaft A but turns with it by the action of a coupling pin on
which said pinion can slide longitudinally along its slot 51 when shifted by lever 52,
which latter turns on its stud o and whose pin 53 extends into the collar 54 of the

page_text: sleeve of pinion 46. This operation of lever 52 can be effected without stopping
the motion of the machine which thus can produce a variety of work, consisting in
cording embroidery when the pinion 46 is in gear with pinion 47 or in plain chain
stitch work when the pinions are thrown out of gear. The sliding operation of the
pinion 46 on shaft A can be still more facilitated by employing a lever 55
represented in dotted lines in Figure 1 which turns on its stud 56 and whose
pitman 57 is connected to the stud 53, the hand of the operator which guides the
work being always close to the lower end of said lever.
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 :-
1. The operation of the brake lever T on the central bobbin through the direct
action of the stop motion of the machine substantially as described.
2. The double needle bar holder provided with its self adjusting cylinders
substantially as described.
3. The double thread spool carrier in connection with the crank motion of
the machine.
4. The arrangement of the central bobbin, its supporting plate, thread guides and
tensions substantially as set forth.
5. The single thread looper in connection with the gear shaft I substantially as
described.
Dated this Tenth day of November 1892.