A New or Improved Machine for Boot-making or the like.
Year: 1896

page_text: Date of Application, 23rd Sept., 1896-Accepted, 23rd Dec., 1897.
COMPLETE SPECIFICATION.
A New or Improved Machine for Boot-making or the like.
I, CHRISTIAN EISENBERG of 20 Kaiser-Wilhelmstrasse, Berlin, in the Empire of
Germany, Expert in Shoemaking Machinery, 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:-
The present invention consists of a machine which replaces the lasting apparatus
or inachine and connects the inner sole or welt temporarily with the upper leather,
The inner
which is provided for the purpose with an edge or border bent outwards.
sole is attached to the upper leather by means of clamps, which can be removed after
the sole has been sewn on.
The new machine is illustrated in the accompanying drawing:
Fig is a plan view of the machine, in which for the sake of clearness some of
the covering parts are partially removed.
Fig 2 is the same view, but shews the inoveable parts in their working position,
whilst in Fig: 1 these parts are shewn at rest.
Fig: 3 is a front view of Fig: 1.
Fig: 4 a vertical section through the machine.
Fig 5 shows a plan view of the pedal arrangement, the upper table being
removed.
Fig: 6 shows the detail of a contrivance for binding the upper leather to the inner
sole.
Figs 7 & 8 show the fastening arrangements of the last holder which is
illustrated in Figs: 9 9 & 10 in plan, section and side elevation respectively.
Figs 11 & 12 show a further detail of the binding contrivance.
Figs 13 & 14 show the binding contrivance for the points or toes of the boots or
shoes.
Figs 15 & 16 represent clamps.
Figs: 17 & 18 show a pair of pinchers or stretching tongs in plan and side
view.
Figs 19 & 20 show a modified form of the machine in detail.
Figs 21 & 22 show a shoe produced by the machine in vertical cross section and
side elevation respectively.
The essential feature of this invention is that by means of the present machine
the peculiarly shaped upper leather (see figs: 21 & 22) is temporarily attached to the
inner sole by means of clamps which are driven in in a lateral direction and which
Herein is a
after the final sewing of the inner sole and upper leather, are removed.
fundamental difference as opposed to all machines hitherto applied to such purposes.
Whether these are employed for lasting or directly for fastening the soles to the
upper leathers, in all of them the practice is to drive the pegs or clamps in a vertical
direction through the upper leather and the sole, the pegs or clamps actually being
left in the sole leather. This has the drawback, that after a short time as the boot
or shoe becomes worn by use, the pegs or clamps penetrate through the inner sole
Priced I

page_text: and cause discomfort to the foot. This is not the case in the present invention,
where the pegs or clamps serve for connecting the inner sole with the upper leather
temporarily. A further great advantage is that with my improved machine, shoes
of every sort and shape can be made.
The mode of operation of the machine is firstly to stretch the upper leather on the
last and then to bind it together with the inner sole.
The construction of the machine is as follows:-
In the centre of the work table a is the jack b provided with tappets c. Into these
tappets (see figures 9 & 10) the metal sole e furnished with fastening hooks d is
pushed.
In the jack is the rod which has a handle capable of being turned round, so that
the hooks d may be pushed without hindrance into the tappets c. Should the metal
sole e be placed in this manner on the jack b, the rod f is drawn forward, and
therewith a projection brought behind the hooks d, so that the metal sole e is
rigidly united with the jack b. This union or attachment is secured by means of a
screw f2. A last is now placed on the metal sole e, the said last bearing the upper g
with the insole g¹. The fastening may be suitably effected by means of screws, which
pass through correspondingly provided incisions in the insole, which incisions can be
stopped up later on.
At the other end of the machine are the pedals (h h¹ h2) which are in connection
with three rods i¹² as shewn in fig: 1. In addition to these (see fig: 5) the
machine is provided with four rods k lek le, which may be brought into communi-
cation with the, pedals and 2 by the following contrivances. Around the
rods & belonging to the pedals hh move the bent levers which, by means
of suitable excisions can be brought into contact with the rod k or 3 or with the
rod k or 2. If the rod k² be connected with the rod 2 by the turning down or
lowering of the bent lever 1, the rods 12 and 2 will likewise be lowered upon a
movement of the pedal h. All the rods are provided with springs which tend to
move them upwards but said rods can be held in any desired position by means of
the levers shown in fig 1 on which are pawls which engage with correspondingly
arranged teeth m² shown in Fig: 3. After the last bearing the upper and insole has
been fastened on the metal sole e the stretching tongs shown in figures 17 & 18 are
applied to the proper part of the upper g, and the scissor or tong like shape of the
stretching apparatus enables the leather to be stretched and fastened, and easily
loosed after the stretching has been discontinued. These stretching tongs, which are
connected with the rods and k, allow the upper leather being, stretched tightly over
the last by a movement of the pedals h h¹ h². The frames o, o are now worked by
the wheels n so that they impart to the edge of the upper leather the outward form
about as shown in figure 21. On the frames o, o is a row of hammers or drivers p
with the clamp reservoirs pl. In these reservoirs p₁ are the turned down clamps, as
illustrated in tig: 15. At the end of each hammer or driving rod is a bent lever,
arranged in such a manner that when its upper arm is pressed down, the other arm
pushes forward a piece and therewith a clamp is taken from the clamp reservoir pl
and pushed out therefrom in a lateral direction. In this way the clamp pierces
through the upper leather and the insole almost laterally and is bent round on both
sides inwards by means of curved incisions or indentations s on the metal sole e
against which the clamp finally strikes, so that the upper leather and insole are
fastened together at the particular spot. In fig: 6 is shewn a contrivance, which
allows of all the levers q (shown more clearly in Fig 12) on one side being moved,
and thereby with the assistance of both hands, the binding on both sides of the boot
to be completed with one action. For this purpose a frame is placed above the series
of hammers q, which can be pressed down by the hand lever by means of the
part . The action is such that the two frames t slide downwards, these frames being
turned on their axes by the bent lever q, and thereby producing a complete binding
edge around the boot, except at the toe, for which a special binding apparatus is
provided as shown in figss: 13 & 14. In this special binding apparatus the small
clamp shown in fig: 16 is held by the pincers u, and then the apparatus is brought

page_text: near to the boot by a movement of the crank u¹ and the clamp driven through the
tue of the boot and there fastened by means of a blow given to the knob or button u².
The frame-work o is now removed from the ready bound boot by turning back the
wheels n the last being also removed from the metal sole by the loosening of the
screw, whereby the rod / springs back and the projection releases the hooks d,
The boot thus bound
the metal sole being thus free for the reception of a fresh last.
is sewed in any manner that may appear to be suitable, the driven in clamps now
being superfluous can be knocked out. The partly completed article is now fully
completed in the desired manner, a sole and heel being attached thereto in any
suitable manner, the article being then fit for the market.
For the due working of the machine it is of course necessary that the working
surface of the frame o which surrounds, and has a size proportionate to the leather
should be in right proportion to the shape of the sole which is all the more important
as the clamps must be so arranged as to be always exactly opposite to the spot on
the insole and on the upper leather where the binding is to be effected. It is thus
clear that if the shape of the sole be altered, the frame o and consequently the
frame t must be altered also or made suitable by the introduction of additional
pieces.
Figs. 19 & 20 illustrates an arrangement which renders unnecessary any such
alteration or introduction. The frame o as shown in Fig. 19 is connected or linked
with the clamp reservoirs p¹ in such a manner that every clamp reservoir appears to
be cut out with the part of the frame belonging thereto.
All these clamp reservoirs p¹ are attached directly to the support v which is
dependent on the hand wheels n. The clamp reservoirs p₁ carry a small
projection so as to correspond with the working cuts of the frames o, o this
projection being intended for bending the upper leather round corresponding to what
is shewn in figures 21 and 22. The clamp reservoirs are attached to the support v
by means of a screw w on which they close with a universal joint and which allows
of their longitudinal position being altered relatively to the metal sole e. On the
side of the support is the forked piece z, which regulates the height of the clamp
reservoirs p¹ relatively to the metal sole e by means of suitable screws. If, now, a
sole of altered form be put in, the clamp reservoirs pl, are brought near to it by the
action of the cranks (hand wheels) n and placed exactly on its curves by the action
of the three screws w, y, y¹. If, further, the two supports are taken back, a last
with upper and insole placed on the metal sole e and the wheels n turned again,
every clamp reservoir p¹ will come exactly on to the desired spot, the upper leather
being shaped as desired by means of the projection v', and, as previously described.
The introduction of the clamp will follow upon the setting in motion of the hand
lever t¹.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, 1 declare that
what I claim is :-
1. A machine for attaching upper leathers to the insoles or welts, in which the
upper leather is drawn on to a last together with the insole, stretched under, by
means of stretching tongs, bent outwards on the lower edge or border by a frame
corresponding to the shape of the sole and provisionally attached to the insole by
clamps as set forth with reference to figures 15 and 16.1
2. The arrangement of parts of the machine described under Claim 1, by which,
for the purpose of actuatine several stretching tong rods, the rod directly dependent
therefrom carries a bent lever capable of heing turned round which enables it from
time to time to become connected with or coupled to the adjoining stretching
tongs rod.
3. The arrangement of parts of the machine described in Claim 1, by which, by
the pressing down of a frame t, a number of bent levers q are pressed downwards,
(pushing forward with the free arm a piece r) and thereby pressing binding clamps
through the upper leather and insole placed there for the purpose, and which

page_text: striking against the curved excisions 8 of a metal sole e are thereby pressed
together.
Dated this 23rd day of September 1896.
CHRISTIAN EISENBERG,
By Horn Son & Co.
151 Strand, London. Applicant's Agents.