Year: 1887

page_text: I JULIUS WILHELM VON PITTLER of Gohlis near Leipsic in the Kingdom of
Saxony German Empire 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 apparatus for producing embroidery work and consists in
the employment of certain arrangements of mechanism hereinafter described for
imparting a uniform motion to the cloth or foundation material on which the em-
broidery is to be produced.
And in order that my said Invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheet of drawings the same letters of reference indicating
corresponding parts in all the figures.
Figures 1 to 5 of the accompanying drawings are diagrams illustrating combinations
in which two pantograph arrangements are employed to operate one cloth holder
as hereinafter explained.
Figures 6 to 7 illustrate combinations in which two pantograph arrangements are
employed to operate several cloth holders.
Figures & to illustrate a combination in which one cloth frame operated by a
pantograph arrangement or otherwise is employed in combination with several sewing
machines.
In the combination illustrated in figures 1 and 2 two coupled pantographs A and B
of equal size and proportions are arranged side by side being pivoted on fixed centres
a. a carried by a stationary bar or plate being so arranged that the levers of the
pantograph A pass over those of the pantograph B. so as not to interfere with the
movements of the latter. The ends of the levers A B₁ from which the pantographs A
and B receive their motions are united at or hinged together at C where they are
connected to a suitable tracing point and handle as indicated more clearly in Figure 1.
The two pantographs A and B are connected at c and d to a cloth holder D. This
cloth holder D is preferably made of circular shape being composed of two concentric
rings fitting one into the other and clipping the cloth or material between them the
outer ring being tightened upon the inner ring by a screw or other suitable
arrangement.

page_text: =
The bar is rigidly attached to the frame of a sewing machine of suitable con-
struction in such a manner as to prevent the cloth or foundation fabric on the holder D
in a suitable position under the needle and the design or pattern which is to be
reproduced in the embroidery is placed under the tracer at C. By moving the tracer
by means of the knob or handle over the lines of the pattern the pantographs A and B
are caused to move the cloth holder D in a corresponding manner whereby the design
or pattern is enabled to be reproduced by the stitches on a reduced or other scale.
Figures 3 and 4 illustrate an arrangement in which the two pantographs A and B
though of similar proportions are of unequal size. This arrangement works in a
similar manner to that illustrated in Figures 1 and 2 as will be readily understood on
referring to the drawing.
Figure 5 illustrates an arrangement wherein the two coupled pantographs A and B
are of equal size and proportions and work on fixed centres a a arranged at opposite
sides of the machine as indicated in the drawing the effect produced being similar to
that obtained by the arrangements hereinbefore described.
According to an arrangement illustrated in figures 6 and 7 two pantographs A and B
are employed in combination to operate a number of cloth holders simultaneously as
hereinafter described. This embroidering apparatus comprises a number of sewing
machines E four such machines being shown in the arrangement illustrated but it is
evident that any other suitable number may be employed if desired. These machines
are placed at suitable distances apart being driven with the object of obtaining
simultaneous action by bevel gear operated by one diving shaft e common to all
the machines.
The shaft e is worked either by a treadle and driving pulley with a cord running on
a pulley on the said shaft in the same way as an ordinary sewing machine or in case
the sewing machines are so numerous as to require greater power by any other suitable
motor. Each machine works upon a separate cloth holder D. cacli holder being
rigidly attached to the same bar i. This bar is similarly acted on at the tivo
extremities c. and d. by the oppositely arranged pantographs A and B working on fixed
centres a and serving to impart the required movements to the said bar and the cloth
holders attached thereto. These pantographs are united at a common tracing point C
as in the arrangements hereinbefore described.
Figures 8 and 9 illustrate an arrangement which is employed for working one cloth
frame F carrying a piece of foundation fabric which by means of this arrangement is
enabled to be worked upon by several sewing machines simultaneously.
The cloth frame or holler F is attached to a bar and consists of a rectangular
frame provided at its two extremities or short sides with rollers G one of which is
shown in figure 9 drawn to a larger scale. Each of these rollers G is provided with a
row of tenter hooks or pins inclined in opposite directions to which the cloth or found-
ation material to be worked upon is attached or hooked being afterwards drawn tight
a turning the rollers in opposite directions by means of pawl levers 7 provided with
pawls acting on ratchet wheels m the rollers being prevented from running back by a
pawl and spring until the material is required to be taken off. This frame is
connected at t to a pantograph A working on a fixed centre and operated in the
usual manner by a lever A' provided with a suitable handle and tracer at C..
In order that every point on the cloth frame may be compelled to move uniformly
with the pantograph the frame is connected to a bar o connected by links p. r. to a
fixed bars. The links p. are also connected to a bar and form therewith an arrange-
ment resembling a double parallel ruler, the bars being stationary and the links p. r.
being maintained invariably parallel therewith by the said links. By referring to the
Drawing (figure 8) it will be readily understood that the effect of this combination is
to cause every point on the foundation fabric to move equally and similarly when the
frame is operated by the pantograph. The cloth or fabric is thus enabled to be
operated on at several different points by any desired number of sewing machines E
operated by a common driving shaft and bevel gear gas herein before described.
When this arrangement is employed to produce designs, in embroidery on the same
scale as the pattern the pantograph A is removed and the tracing points.are directly

page_text: attached to the frame F on the right or left hand sides of the frame as indicated by
the dotted line at C for example.
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 :-
First. In an embroidering apparatus the combination of two pantographs such as A
and B united at a common tracing point C and connected to the cloth holder or
holders by a bar such as c. d whereby a uniform motion is imparted to the said holder
or holders substantially as hereinbefore described and illustrated in figures 1 to 7 of
the accompanying drawings.
Second. An embroidering apparatus provided with a frame on which the cloth is
stretched between two rollers such as G provided with tenter hooks & pawl levers In
ratchet wheel and spring the said frame being connected to a
parallel ruler
arrangement such as o p p and q figure 8 and being operated with or without the aid
of a pantograph such as A in such a manner as to produce simultaneously and with
precision a number of designs in embroidery according to any desired pattern all
substantially as hereinbefore described with reference to figures 8 and 9 of the
accompanying Drawings.