Improvements relating to the Manufacture of Boots and Shoes.
Year: 1898

page_text: Date of Application, 29th Jan., 1898-Accepted, 5th Mar., 1898
COMPLETE SPECIFICATION.
Improvements relating to the Manufacture of Boots and Shoes.
I, JOSEF SCHENKL, of Offenbach-on-the-Main, in the Empire of Germany,
Foreman, 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:-
My invention relates to the manufacture of boots and shoes.
For manufacturing elastic soles which shall be flexible and supple at the joint
or shank and fulfil the hygienic requirements, the method heretofore practised is
not sufficient.
Up to the present time it has been customary in the manufacture of boots and
shoes by machinery to crimp the upper over the insole and secure same by iron
rivets. This overlapping of the leather, and especially the fixing by means of iron
parts, renders the boot or shoe heavy, and the sole, particularly the intermediate
sole, is not sufficiently supple to provide for a faultless fit on the foot, which is the
cause of all kinds of foot diseases.
The improved method illustrated in the accompanying drawing is chiefly based
upon the fact that the upper and the insole are not laid one upon or above the other,
but abut against each other, and that iron parts are not employed for connecting
them.
In order to achieve this object I may adopt various methods.
As represented in Figure 2, the upper a, which is properly turned by the crimp-
ing machine, may be cemented or glued to the lining c, which is cut about half an
inch wider than the upper.
Then the sole b, Fig. 3, which conforms exactly to the shape of the upper, is like-
wise glued upon the lining, the whole being stitched together.
Another mode of manufacturing these soles is represented in Figure 1. In this
instance the upper a is joined and stitched to the insole b, which may be effected
either by hand or by machine.
The upper may also in this case be turned by the crimping machine over the
last (preferably a wooden last) and then connected with the insole, which is then
in the same plane as the upper.
By abutting the leather as set forth I avoid the heavy stiff sole obtained by the
method heretofore practised. The improved method furnishes a boot or shoe which
answers all hygienic requirements, as it readily adapts itself to the foot and can
follow its movements.
A further advantage of the improved method lies in the greater durability of
the boots and shoes made according to such method, as the iron parts used in the
customary method, being subject to rusting, will soon cause the destruction of the
leather.
my said
Having now particularly described and ascertained the nature of
invention and in what manner the same is to be performed, I declare that what I
claim is:-
First. A method of manufacturing elastic soles for boots and shoes, character-
ized by the feature that the upper and insole abut and are connected by stitching,

page_text: Second. The method described in the first claim so modified that the upper and
insole are made to abut against each other and cemented or glued upon the lining,
only the upper and lining being connected with the insole by stitching, substan-
tially as set forth.
.וו...ת
COLL 1
1000
CHARLES JUNGE,
75, Chancery Lane, London, W.C.,
Agent for the Applicant.