Improvements in the Manufacture of Boots and Shoes.
Year: 1889

page_text: Date of Application, 19th Aug., 1889-Accepted. 28th Sept., 1889
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Boots and Shoes.
[, AUGUSTO SANDINO, Director of La St N Farina & Ca of Corunna, in the Kingdom
of Spain, 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 the manufacture of boots and shoes the object being to
provide simple means for securely connecting the uppers to the soles and the invention
consists essentially in attaching the upper of the boot or shoe to the sole, whatever
may be its shape, by means of a thread of metal or other suitable material in the
manner hereinafter more particularly described.
In order to enable my invention to be fully understood I will describe how it
can be carried into practice by reference to the accompanying drawing in which
Figure 1 is a longitudinal elevation and
Figure 2 a plan of the sole and heel of a boot or shoe adapted to be attached to an
upper according to my invention.
Figure 3 is a longitudinal elevation of a boot made according to my invention and
Figure 4 is a transverse section of the same on line a à of figure 3.
Similar letters in all the figures indicate similar parts.
In carrying out my invention I first prepare the sole of the boot or shoe in the
ordinary manner from the ordinary materials employed for this purpose, such as
wood, leather, cork, india rubber, gutta percha, &c. and I form along the whole of its
periphery or edge a groove such as x as shown in figures 1 and 2 of the drawing.
The upper, made in the usual way, is placed in exact position on the last, which
is attached to the sole and the whole is firmly fixed upon a support, as usual in the
manufacture of boots and shoes.
I then apply a thread such as y to the point of the sole at A and it is drawn
tightly backwards whereby the thread is forced to enter the groove and embed the
lower edge of the leather or fabric constituting the upper in the groove.
The two ends of the thread are then passed in opposite directions through a hole B
made transversely through the narrowest part or waist of the sole.
By tightly pulling the ends of the thread in a direction away from the two sides
the thread and the upper become embedded in the side portions of the groove.
The introduction of the upper into the remaining portion of the groove is effected
by bringing the ends of the thread behind the heel at C and then again drawing
them tightly in a right and left hand direction respectively.
The two ends of the thread are then tied and brought and fixed under the sole
where they are covered by the heel when the latter is placed in position.
It is obvious that the thread can be placed around the sole in any other suitable
manner and it may be caused to pass through the sole several times, or not at all,
according to circumstances and I can also vary the means of securing the ends of the
thread.
Moreover, I can vary the manner of preparing the soles and uppers and of con-
necting them to the last as well as the method of producing the required tension on
the thread which causes the latter to enter the groove in the sole and the upper to
come in complete contact with the bottom of the groove, but the result will be in all
cases that I fulfil in a much better manner than hitherto the conditions of imperme-
ability, strength and durability so necessary in a good boot or shoe.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what 1
claim is :-
1. Connecting the upper of a boot or shoe to the sole thereof by means of a thread
of suitable material tightened in such a manner as to cause the lower edge of the
leather or fabric of which the upper is composed, to enter a groove made throughout
the periphery of the sole and to firmly secure it therein substantially as herein before
described.
2. Boots and shoes manufactured in the manner hereinbefore described with reference
to the accompanying drawing.
Dated the 19th day of Amanat 1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.