A New or Improved Machine for Shaping Leather.
Year: 1892

page_text: Date of Application, 12th May, 1892-Accepted, 18th June, 1892
COMPLETE SPECIFICATION.
A New or Improved Machine for Shaping Leather.
1, WILHELM KRONE of 136 Steinweg Walbeck in the German Empire, Boot
Manufacturer, 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 a machine for shaping or moulding pieces of leather
especially leather which will be used in the manufacture of boot uppers.
Hitherto very cumbrous manual methods have been employed for shaping
moulding or stretching boot uppers and similar articles, thus causing a very great
waste of time. This time is saved by the employment of a machine constructed
according to this invention and the leather is in no way injured.
The machine so constructed consists of a suitable frame enclosing a slide the
lower edge of which is shaped or cut to suit the required purpose. The leather
to be shaped or moulded having been placed around the lower edge of the slide;
its edges are connected by means of chains and clamps to a screw upon the top of
the frame by means of which the tension on the leather can be regulated. The
slide is forced downwards and the leather is thus clamped in place.
For the purpose of more clearly describing my invention I have hereto appended
a sheet of drawings reference to which is hereinafter made, similar letters
indicating similar parts where they occur in the different figures.
Figure 1 illustrates a front view of the machine ;
Figure 2 a side view;
Figure 3 a vertical section; and
Figure 4 a horizontal section.
The two sides a of the frame of the machine are grooved or channeled to
contain and guide the ends of the cross bark and the sides of the slide . The
lower edge of this slide is formed with an angular or other suitably shaped
recess.
P
The frame sides a a are joined at their upper ends by the bar which contains
the nuts for the two screws c and d, the screw e being operated to raise and
lower the slide b. Attached to the screw d one on each side of the machine, are
two chains e e furnished with clamps or small vices ff which grip the edges of
the leather so that the rotation of the screw in one direction or the other strains or
releases the leather as desired. At the lower part of the frame are two horizontal
parallel bars i furnished with the screws h² the ends of which carry suitable
plates or jaws g g' to form a clamp or press.
In operating the machine the slide is first raised and the leather / is placed
under the lower edge. The edges of the leather are then secured in the vices (1
and the slide is forced down by the screw c. The leather is thus drawn within
the recess or angle in the lower edge of the slide and is forced between the
clamps g g the distance between which has been suitably adjusted. By means of
the screw d the tension can be regulated so as to run no risk of overstraining or
injuring the leather.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A machine for shaping or moulding leather constructed arranged and
operated substantially as hereinbefore described and as illustrated by the
accompanying drawings.
2. In a machine for shaping or moulding leather the combination with a suitably

page_text: shaped screw slide of an adjustable clamp between the jaws of which the leather
is forced by the downward motion of the slide; substantially as herein before
described and as illustrated by the accompanying drawings.
3. In a machine for shaping or moulding leather a tension regulating device,
consisting of a screw and two chains terminated by clamps or jaws constructed
and arranged substantially as and for the purpose hereinbefore described and
as illustrated by the accompanying drawings.
Dated this 11th day of May A.D. 1892.
WILLIAM E. HEYS,
Agent for the Applicant.