Improvements in or relating to Embroidering Machines.
Year: 1893

page_text: Date of Application, 12th July, 1893-Accepted, 23rd Sept., 1893
COMPLETE SPECIFICATION.
Improvements in or relating to Embroidering Machines.
I, HERMANN FERNBACH, of 13 Böhler Street, Plauen, Voigtland, Saxony, in
the German Empire, Manufacturer, do hereby declare the nature of my said invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
The object of my invention is to effect improvements in embroidering machines
by means of which improvements two or more threads can be secured to the portion
of embroidery so that at each stitch the threads are led or guided between the
embroidery thread and the material; both threads lying side by side and moving
(say) from right to left then turning so that at the next stitch they move from left
to right.
Heretofore it has been necessary to roll or wind both the ornamental threads
round a needle so that the embroidery thread lies over the two ornamental threads
at each stitch of the needle, the two ornamental threads, however, being guided and
held in each direction.
And in order that my said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Figure 1 is a top view or plan of the turning plate, showing the bobbin plate
fastened thereto, carrying two ornamental-thread bobbins.
Figure 2 is a side view for more clearly showing the method of driving.
Figure 3 is a cross-section through the thread supplier.
Figure 4 is a detail view of the bobbin plate.
Figure 5 shows an arrangement consisting of several thread suppliers, fitted to
an ordinary frame with driving gear.
Figures 6 to 13 show various positions explanatory of the method of working.
On the frame or stand of the embroidery machine is an iron band or plate rail a
on which (Figures 1, 2 and 3) the plate b is so fastened by means of sockets c
(Figure 3) that it can freely revolve. On this plate 6 a cylinder or drum d is fitted.
Inside the cylinder d the bobbin plate e is so placed, that by the turning or
revolving of the plate 6 by means of a cam or catch f (Figures 1 and 3) attached
to the cylinder d it will be caused to revolve.
The disc e (Fig. 4) is slotted and carries the two bobbin cases g. Those two
bobbin cases are fastened on to a small plate h which is movably connected with
the plate e, by means of a pin or peg el situated near the periphery, so that when
the insertion of a fresh bobbin is necessary the small plate h, and also the groove or
recess of the bobbin holders g g', are rendered accessible, and the bobbin may be
removed by turning the plate h from the position shown by dotted lines in Fig. 4,
to that shown by solid lines in the same figure.
The plate, reciprocating plate b and bobbin plate e (Figs. 1, 3 and 4) are all
slotted in the middle, in order to allow the needle and thread, and the thread
drawn away from the bobbins, a free passage (Figs. 6 to 13).
In order to prevent breakage at the departure of the thread by its being twisted
against the sharp corners of the bobbin plate e, or the plate h, a split ring i is so
applied to the plate e, that the various threads, ou leaving, pass along upon the
rounded surface of the same and consequently are thereby prevented from being
broken.
•
The driving of the bobbin-holding device, that is to say turning the bobbins
round the needle, is effected in the following manner :-Two thread suppliers are

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attached to the plate rail d. The plate bis cause:l to reciprocate circularly by one
of the toothed wheels j. This toothed wheel ; runs loose upon a spindle or rod k,
fastened to the plate rail a, and carries at its extended boss or hub a bevelled
wheel j¹.
A driving shaft 1 (Fig. 5) serves to drive several pairs of such thread suppliers,
by means of bevelled wheels m gearing with the bevelled wheels j¹.
The needle m³ (Figs. 6 to 13) is connected with the needle bar in the usual
manner, and receives the thread n, which is drawn off from a spool or reel.
The mode of operation of the thread supplier, as also the various stages of the
operations, are íllustrated upon an enlarged scale in Figs. 6 to 13, & are as
follows:-
:-
:
The two threads o, o¹, are, by means of the thread n, attached to the upper
surface of the embroidery, they therefor require to be so wound round the thread n,
that this latter, by the operation of the needle, secures both the ornamental threads,
as shown. These two threads then assume a wavy or undulating form, as they
enter the stitch from the one side (Figs. 7, 9, 11 and 13) and leave on the other
side; and then, from the same side, pass under the next stitch; and so continue to
pass through the loops, of the thread n.
As the ornamental thread enters, the next stitch under the thread n (as shown in
Fig. 9) the plate b rotates in the direction of the arrow z, and consequently winds
the two ornamental threads round, the needle m², as shown in Figs. 6 and 7. This
forms the preparatory work for the formation of the next stitch.
The plate 6, at the end of each circular reciprocation is caused to "dwell" while
the needle works itself into and out of the material, whereupon the material p is
moved further on in the direction of the arrow y.
As the material travels along by the operation of the presser foot threads for
ornamentation are drawn off the bobbins 9, 7' which lay in the cases g, gl (Figs. 1
& 3) and the needle, material, ornamental and embroidery threads together arrive
at the position represented in Figs. 8 & 9.
.
Immediately the needle has again descended, the embroidery thread n fastens the
ornamental thread to the material, and the plate again performs a revolution
round the ornamental threads o, o' for the next stitch; so that, after the unwinding,
the embroidery threads and needle, take up the position shown in Figs. 10 & 11.
The ornamental threads have in the stitch represented been moving from backwards
to forwards; or in plan (Figure 11), from left to right, & are each, through the
rotation of the plate b, so conducted round the needle, that, after the rising of the
needle (Figs. 12 & 13) and departure of the material, a stitch length for the next
stitch, the material comes to rest from right to left, under the embroidery thread.
The needle m² now again descends and the position represented in Figures 6 & 7
is again occupied by all the parts as hereinbefore described.
The motions of the plate in the successive stitches continue the operation.
The driving of the shaft (Fig. 5) is effected by means of a driving band actuating
a grooved pulley t, fast on the end of the shaft ; one revolution being effected at
each double stroke or rising & falling of the needle m².
The needle m² executes simply an on-and-off motion, while the material p, at the
moment the needle is withdrawn, is moved a stitch length, & guided by the hand to
effect the desired ornamention.
Having now particularly described and ascertained the nature of my said inven-
tion, & in what manner the same is to be performed, I declare that what I
claim is:
1. In embroidering machines the combination of a bobbin-holding device,
consisting of a plate &, carrying a pivoted plate h to which the bobbin holders 9, g¹
containing the bobbins q, q' are fitted in the cylinder d, the bevel gear wheels j¹ & m
toothed wheels ; for operating the needle m², and the embroidery thread n,
substantially as herein before described and illustrated by the drawings.

page_text: 2. The improvements in or relating to embroidering machines, substantially as
and for the purposes hereinbefore described and illustrated by the drawings.
Dated 12th July 1893.
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.