AN IMPROVED TOOL APPLICABLE FOR THE MANUFAC- TURE OF BOOTS AND SHOES to be as follows:
Year: 1884

page_text: I STEPHAN FEJES of Humbolt Platz 2 Vienna in Austria do hereby declare the
nature of said invention for "AN IMPROVED TOOL APPLICABLE FOR THE MANUFAC-
TURE OF BOOTS AND SHOES to be as follows:-
"
The tool used until now to cut leather has been a simple knife. By means of
this knife it has always been difficult for any unexperienced workman to cut leather
especially when thick, when the piece is often spoiled and useless.
By this invention the operation will be safe and more regular.
The improved tool consists of a knife holder with a.hollow core in which the
knife is secured.
The knife has two sharp edges on the top at the right and at the bottom on the
left so that it is only necessary to pull it out when one end is blunt or injured and
the other can be used.
This knife in the knife holder so that its upper end projects half a centimeter
beyond the extremity of the knife holder and is secured in that position by means
of a screw.
A plate will be placed on the face of the knife holder head provided with
a hollow place through which the knife projects and which regulates the extent of
the cutting operation Another plate is secured above this in order to give greater
stability.
The knife holder is fixed in a wooden knife handle by means of a screw placed at
its lower end and which must be removed in order to reverse or change the knife..
31004

page_text: having been worn a short time. The purpose of this invention is to remove this
deficiency. By means of it the sole-leather of a shoe or boot can be cut right
round with the greatest ease and even if the necessary precaution is not observed,
there is no possibility of the upper leather being cut or damaged.
This apparatus consists of the knife holder a which has throughout its whole
length the swallow tail shaped guide b into which the knife is thrust.
Fig. 3 shows the knife-holder a with the knife c thrust in projection, and Fig. 6
in section. Fig. 7. is a section through a with the knife removed.
The latter, which is drawn in projection in Fig 2. has at its two opposite ends,
that is to say on top on the right hand, and below on the left, sharp edges, so that
the knife need merely be turned round when the one edge bas got blunt. The
knife o sits in a in the manner shown in Fig. 3. and from it may be seen that the
end used for cutting projects 1, cm, wheras the other end in order not to cut the
workman, does not reach beyond b.
If both edges have got blunt they can be sharpened and this can be repeated as
often as required as long as the screw k (Fig 1) continues to grip the knife. On
to the surface d of the knife holder head e the plate f, drawn in Fig. 5, is rivetted
and equalized the difference in height between surfaces d'and i of the head e.
This plate has a notch g through which the edge of the knife c (Fig 1) projects
at a constant distance from f, and f¹ functions in this manner as a protection plate
as only pieces of leather can be cut whose thickness equals the distance from f to h.
The advantage of this invention consists herein.
The plate represented in Fig. 4 is screwed on to f and i in order to give the
whole concern more stability. The relative positions of d, f, i, and I to each other
is shown in side view in Fig. 8.-
In cutting knives ready for use, the knife-holder a is provided with a wood
handle in (Fig. 1) and by slackening the screw the knife c is loosened, and can be
drawn out of b. The handle m is fastened to knife-holder a by means of screw u.
With this knife the workman cuts just the same as with the knives used
hitherto.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
A knife for cutting sole-leather which consists in knife c that can be thrust into
the swallow-tail shaped groove of the knife holder a, further in the protection
plate F, the notch g of which allows the edge of the knife to project only a certain
distance, and finally in the cover plate l.