Improvements in and connected with Presser Feet for Sewing Machines.
Year: 1893

page_text: Date of Application, 14th Feb., 1893
Complete Specification Left, 24th Oct., 1893-Accepted, 25th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in and connected with Presser Feet for Sewing
Machines.
We, HEINRICH MUNDLOS and RUDOLPH ARENDT, of Magdeburg-Neustadt, in
the Empire of Germany, Manufacturers, do hereby declare the nature of this
invention to be as follows:-
This invention relates to sewing machines and has for its object to provide a
selfacting presser foot for irregular layers of material, which presser foot is
applicable to all kinds of sewing machines.
The bracket a, (Figs. 1-4) in annexed drawing for the said presser foot, in its
form and method of attachment is made to suit the particular kind of sewing
machine to which it is desired to apply the presser foot and as its build may
require.
The presser foot 6 (Figs. 1-6) is connected at c with the bracket a by means of
a hinge pin, furnished with a head c¹ and carries at d a raised wheel and at ha
second lower wheel e which in its normal position touches always the material.
Now if the layer of material f, f, is moved in the direction of the arrow over the
needle plate of the machine by the feeder (not shown) the presser foot takes up
its normal position, as shown in Figs. 1, 3 & 4, which brings the front wheel out
of action. If the presser foot approaches afterwards an obstruction, g, (Figs. 1 & 2)
for instance a thicker layer of material, a cross seam or a strap placed on the
material (as in saddlery), the wheel d comes into operation; the obstruction g
then pushes against the wheel d and positions the presser foot selfactingly at an
angle, which is necessary in order to pass more easily over the obstruction, the
back wheel e preventing any friction by the fork h.
After the presser foot bbas partly or wholly overcome the obstruction (Fig. 5),
being under the influence of a spring, it will take up again its normal position, the
front wheel d arriving first on the material.
Fig. 7 represents a modification of the appliance described, in which the foot b
is not only shown connected with the bracket a by means of the hinge pin c, c', but in
addition thereto by a spring i, which latter has constantly a tendency to press the
front part of the foot onto the material. The pressure of the spring is so light
that it will not materially influence the ascent of the front wheel d (Fig. 2), whilst
on the other hand the lowering of the wheel d, (Fig. 5) is assisted, the pressure
between the feeder and presser foot during this period being always retained at
such a degree that the feeding of the material ƒ proceeds unimpeded.
Dated this 13th day of February 1893.
F. BOSSHARDT & Co.,
Agents to Applicants.
COMPLETE SPECIFICATION.
Improvements in and connected with Presser Feet for Sewing
Machines.
I, HEINRICH MUNDLOS and RUDOLPH ARENDT, of Magdeburg-Neustadt, in
the Empire of Germany, 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 :-
This invention relates to sewing machines and has for its object to provide a self-

page_text: acting presser foot for irregular layers of material, which presser-foot is applicable
to all kinds of sewing machines.
The bracket a (Figs. 1-4) in the drawings sent in with Provisional Applica-
tion, for the said presser foot, in its form and method of attachment, is made to suit
the particular kind of sewing machine, to which it is desired to apply the presser
foot and as its build may require.
up
The presser foot b (Figs. 1-6) is connected at c with the bracket a by means of
a hinge pin, furnished with a head c¹ and carries at d a raised wheel and at ha
second lower wheel e, which, in its normal position, touches always the material.
Now, if the layer of material ff is moved in the direction of the arrow over the
needle plate of the machine by the feeder (not shown), the presser foot takes its
normal position, as shown in Figs. 1, 3 & 4, which brings the front wheel out of
action. If the presser foot approaches afterwards an obstruction 9 (Figs. 1 & 2),
for instance a thicker layer of material, a cross-seam or a strap placed on the
material (as in saddlery), the wheel d comes into operation; the obstruction g
then pushes against the wheel d and positions the presser foot selfactingly at
an angle, which is necessary in order to pass more easily over the obstruction, the
back wheel e preventing any friction by the fork h.
g
After the presser foot & has partly or wholly overcome the obstruction (Fig. 5),
being under the influence of a spring, it will take up again its normal position, the
front wheel d arriving first on the material.
Fig. 7 represents a modification of the appliance described, in which the foot b is
not only shown connected with the bracket a by means of the hinge pin c c', but in
addition thereto by a spring i, which latter has constantly a tendency to press the
front part of the foot on to the material. The pressure of the spring is so light,
that it will not materially influence the ascent of the front wheel d (Fig. 2), whilst
on the other hand the lowering of the wheel d (Fig. 5) is assisted, the pressure
between the feeder and presser foot during this period being always retained at
such a degree, that the feeding of the material proceeds unimpeded.
Having now particularly described the nature of our said invention, and in what
manner the same is to be performed, we declare that what we claim is :-
1. In a presser foot for sewing-machines: The combination of a bracket or
holder a and of the foot proper with a hinge c connecting the parts a and b, for
the purpose as described.
2. In a presser foot for sewing machines: The combination of a bracket or
holder a and of the foot proper b, with a hinge c connecting the parts a and b, the
foot having at its point a roller d, for the purpose as described.
3. In a presser foot for sewing machines: The combination of a bracket or
holder a and of the foot proper b, with a hinge c connecting the parts a and b, the
foot having at its heel ha roller e, for the purpose as described.
4. In a presser foot for sewing machines: The combination of a bracket or
holder a and of the foot proper b, with a hinge c connecting the parts a and b, the
foot having at its point an elevated roller d and at its heel a roller e, touching the
fabric, for the purpose as described.
5. In a presser foot for sewing machines: The combination of a bracket or
holder a and of the foot proper b, with a hinge c connecting the parts a and b and
with a spring i acting on the foot, for the purpose as described.
6. In a presser foot for sewing machines: The combination of a bracket or
holder a and of the foot proper b, with a hinge c connecting the parts a and b, and
with a spring i acting on the foot, the latter having at its point a roller d, for the
purpose as described.
7. In a presser foot for sewing machines: The combination of a bracket or
holder a and of the foot proper b, with a hinge e connecting the parts a and b, and
with a spring i acting on the foot, the latter having at its heel ha roller for the
"purpose as described.
8. In a presser foot for sewing machines: The combination of a bracket or
e,

page_text: holder a and of the foot proper b, with a hinge c connecting the parts a and b, and
with a spring i acting on the foot, the latter having at its point an elevated roller d
and at its heel a roller e, touching the fabric, for the purpose as described.
Dated this 23rd day of October 1893.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents for the Applicants.