An Improvement in Sewing Machines for Use in the Manufacture of Boots and Shoes.
Year: 1894

page_text: Date of Application, 21st Dec., 1894-Accepted, 14th Dec., 1895
COMPLETE SPECIFICATION.
An Improvement in Sewing Machines for Use in the Manufacture of
Boots and Shoes.
We, JOHANNES HEINRICH HERMAN WÖHL, and HERMANN PAUL OTTO WÖHL,
both of Sande, near Bergedorf, Germany, Manufacturers, do hereby declare the
nature of our said invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:―
Our invention has for its object improvements in sewing machines for the
manufacture of boots and shoes whereby the edges of the uppers of shoes boots &c.,
can be fastened or stitched in a much more easy manner, than hitherto the
arrangement or mechanism here described being applicable to all shoe and boot sewing
machines.
In order that our invention can be more readily understood and carried into effect
we have appended hereunto two sheets of drawings upon which is illustrated the
improved mechanism :
Figure 1, is an elevation.
Figure 2. is a plan of same.
Figure 3 is a front view of Figure 1 and
Figures 4 are side views of the exchangable fastening device drawn on a larger-
scale.
Figure 5 is a perspective view of the said device.
Figure 6 shows the rollers or spools on the pins cc'.
This invention consists essentially of a plate a fixed by means of suitable clamps b.
to the table of the sewing machine and it is provided with two pins c and c¹ upon
which the rollers or spools (which carry the ribbon and cord for trimming) are
placed. On the one end of the plate a is fixed the fastener or trimmer e which is laid
in a protuberance thereof and is secured adjustably thereto by the thumb screws d.
As the drawings clearly show, this trimmer consists of a cavity or curved recess f
which is reduced in size towards the point of needle and parallel to which is formed
an opening arranged in close proximity thereto and through which the thread passes.
with which the edges or margins of the boot uppers are to be sewn. In the centre
of the fastener the guide for the cord is interrupted in a vertical direction by a larger
carity extending to the bottom of the cord-guide whereat is formed a stitch hole as.
well as a slot for the needle of the machine.
The above described apparatus operates in the following manner :-
After having fixed by means of the clamps the plate a with its attachments-
to the arm of the machine in such a manner that the stitch hole h comes in a
vertical direction under the needle point of the sewing machine the ribbon is
first pulled from the roller or spool and passed through the trimmer when
the cord is passed through the guide hole 9 formed therein after which
the leather requiring to be stitched and trimmed at the edges is placed
between the bent over edges of the ribbon and the machine is set in motion.
The guiding of the ribbon and of the cord to the sewing appliance is effected
from the two rollers or spools by a guide pin k provided with a slot 1 for the ribbon
and with a hole m for the cord. The trimmer is arranged to be interchangeable
and can be easily loosened from the plate a by the clamps d and replaced by others
corresponding to the breadth and thickness of the ribbon used. The finished shoes
or boots may also be trimmed with the ribbon only without the insertion of the cord
especially in the case of repairs.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
"
The improvements in sewing machines for the manufacture of boots and shoes
the plate a fixed to the sewing machine and provided with an interchangeable trimmer
having a guide for the ribbon and a guide g for the cord the said ribbon and
cord being wound upon rollers or spools carried by the pins c and c¹ on the plate a
and guided by a guiding pin k, substantially as and for the purpose herein set forth
and shewn upon the accompanying drawings.
Dated this 20th day of December 1894
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicants.