Improvements in Boot and Shoe Heeling Machines.
Year: 1896

page_text: Date of Application, 21st May, 1896--Accepted, 4th July, 1896
COMPLETE SPECIFICATION.
Improvements in Boot and Shoe Heeling Machines.
1, ALBERT ANDRES, of No. 46 Haupt Strasse Nieder-Walluf near Francfort-
on-the-Main in the Kingdom of Prussia, Mechanician, 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, which on the one hand serves for pressing,
nailing and trimming the heels of ordinary foot coverings, in which a top-piece of
leather is fixed upon the heel, and on the other hand serves for producing heels for
military boots and shoes, in which a plate of iron is substituted for the top piece of
leather of ordinary heels. The said machine possesses a very great productive
capacity and its construction is most simple.
The essential features of the machine are two pistons having a different length
of stroke and moving in a vertical direction the one inside the other. These
pistons are actuated by means of appropriate cams and levers and effect the nailing
of the heel and of its top piece of leather or the fixing of the heel and of its
top piece of leather or the fixing of the heel and of the iron top or plate thereto,
as the case may be, by means of long driving hammers. During this operation the
heel is compressed by a plunger or pressing rod acting from above, and when in
the former case, that is to say when working on ordinary boots aud shoes the
nailing of the heel has been effected, the pressing plunger or pressing rod is
lifted, and a plate containing the top leather piece is brought exactly below the
heel and is then nailed fast, after which the trimming of the front surface of the
heel is effected.
For manufacturing military boots or shoes the top leather piece of the heel
is, as already mentioned, replaced by an iron tip or plate which is nailed simul-
taneously with the heel. In this instance the outer piston is provided with suitable
awls which first effect the piercing of the holes, whereupon after a simultaneous
rotary displacement of both pistons, the interior piston actuates the hammers which
drive the nails home.
This invention is shown in the accompanying drawings in two constructional
examples, one illustrated in Figures 1 to 8 and the other in Figures 9 to 12,
each construction corresponding to the respective uses to be made of the apparatus.
Figure 1 is a vertical sectional elevation of the machine;
Figure 2 is a section on the line 2-3 of Figure 1, seen from the right hand side
of this latter figure, and
Figure 3 is a section on the same line but looking from the left of the said
Figure 1.
Figure 4 is a plan of Figure 1, and
Figures 5 to 8 represent detail.parts.
Figures 9 to 12 show a modified formn of machine adapted for producing heels for
military boots and. shoes.
The
The machine is shown in a position, occupied when a heel has just been-finished
and after the knife, for trimming the front of the heel, has descended.
shaft k with the fly-wheel K is continuously actuated by the fixed pulley m, and
the belt is only shifted to the loose pulley m* in case the machine is to be finally
stopped.
Before starting the machine, the operator by means of the handle a moves the
pressing rod a, (which can be turned together with its yoke or top-frame around

page_text: the pivots a²) to the position indicated by the dotted lines in Figure 2, he then
draws the boot or shoe over the said pressing rod and returns the pressing rod to the
heel mould b. During the time elapsed in performing these operations, a second
assistant operator has filled with nails an apparatus specially arranged for the
purpose but not shown in the drawing, and has passed these nails through the
beel-mould b, in a known manner upon the driving hammers del of the pistons
below which heel-mould then lie the holes c* of the plate co which is displaceable
by a frame (see Figure 6), the nails passing through the top plate bl of the fixed
cylinder containing the pistons. The said assistant operator has further inserted
the top leather piece 2 of the heel in the notch e' of the plate e arranged in the
said frame c.
When the
Subsequently the operator depresses the treadle f¹ (Figure 3), consisting of
three arms 23, whereby the arm 12 with its upper hook shaped extremity
moves away from the pins of the cam s, the purpose of which will be hereinafter
described (see position in dotted lines), and the front extremity of the arm f
strikes against a rail g which is pivotally arranged on the frame.
treadle is moved further down, the rail g is compelled to follow such movement
owing to connection established, and, in so doing, draws down the rod connected
thereto, which rod h actuates an arm h' fixed upon the shaft i and rotates the said
shaft a certain extent in the direction indicated by the arrows in Figures 1 to 3.
A consequence of this movement is that the arm which is likewise fixed upon the
said shaft i moves into the position shown in dotted lines and releases the tappet k¹
which is rotatably mounted upon the hub of a toothed wheel / placed loosely upon
the shaft k, and the said tappet, owing to the action of a suitably arranged spring ko,
. (Figure 4), falls into a groove or recess m° of the continually actuated belt
pulley m, so that a positive connection between the wheel and shaft kis
established. The small toothed wheel gears with the large wheel and the
shaft of this latter upon which are keyed the cams s and serving for the
actuation of the pistons & and e one displaceable inside the other, is set in rotary
motion. Meanwhile the treadle, comprising the three parts f, f, f³ has returned
to its initial position.
As may be seen from Figures 2 and 3 (bearing in mind that Figure 2 represents
a cross section of the right hand side of Figure 1 and Figure 3 a cross section of the
left hand side of Figure 1) the cams s and t have their projecting parts placed
horizontally opposite one another, and the cam s acting through the medium of the
lever E, upon the interior piston e possesses a longer throw than the cam t. The
levers D and E rotatably mounted upon the pivot of the frame of the machine
engage with the grooves of these cams through the medium of axles provided with
small pulleys, and the front extremity of the lever D, acted upon by the cam t
engages with a lateral recess d° of the large piston d, whereas the lever E actuated
by the cam s passes through a longitudinal slot d* of the large piston d and enters an
opening of the small piston e (see Figure 5).
Upon the shaft are further keyed the circular discs n n, which are provided
with a more or less deep recess n* and with a shallower recess n° lying diametrically
opposite the recess n*. These discs actuate the levers A A pivoted to the frame
of the machine at vand the said levers in turn act upon rods A' A¹ which are
connected to the yoke a¹ and are controlled by the springs A°.
In the position of the machine, illustrated in the drawing, the pulleys of the
levers A are located in the larger recess n of the discs n, and consequently the
springs A have lifted the rods A' together with the yoke a¹ and have raised
the pressing rod a, so that the outward movement of the pressing rod, for enabling
the boot or shoe to be placed thereon is obtained.
When the shaft is rotated, the small pulleys of the levers A are lifted out of
the recesses n* of the discs n, and consequently the levers A are moved downward
while turning on their pivot and thereby the rods A', by the action of their
springs A°, are forced down together with the yoke a¹ and thus the pressing rod a
is caused to exert a pressure upon the heel. In order that this pressure may be a

page_text: yielding one, and that breakages or other damages may be avoided, a strong double
spring ax is provided in the interior of the yoke a¹. The elastic action of the
spring can be adjusted according to requirement by means of a set-screw aº, bearing
against a plate between which and the head of the pressing rod a, the spring a is
arranged."
It will be apparent from Figure 3 that the cam s has in the meantime commenced
to act, and consequently the small piston e has been raised by the lever E and the
driving lainmers e of this piston, consisting of long steel pins which are guided in
the top cover plate 6 of the fixed socket in the machine frame G, have driven
the nails into the heel. If subsequently the driving hammers e together with the
piston e which, as already mentioned, executes a longer stroke than the piston d, have
receded, the small pulleys or rollers of the lever A arrive at the second, smaller
recess of the discs and the expanded springs A produce a corresponding
upward-movement of the pressing rod a, and cause the pressure to cease.
The frame e (Figure 6) lying beneath the heel-mould and containing the
plate co with the holes ex for the nails and the top leather piece located in the
notch e', can now be displaced to such an extent that the said top leather piece
is brought beneath the heel of the boot or shoe. This takes place in the following
manner:-
Referring to Figures 1 and 4 a catch is provided at the interior face of the
large toothed wheel, and this catch produces a displacement of the forked bolt o
located horizontally in the frame of the machine, which forked bolt is connected to
a rod of turning on a pivot o. The rod of embraces with its upper fork shaped
extremity the recessed hub of the arm k which is displaceable upon the shaft
by means of a groove and a spring, and displaces the said arm to such an extent,
that the pin 3 of the latter is enabled to act upon the bell crank or double armed
lever p p pivotted at po, which lever then by the aid of its arm pl, located in the
slot of the frame c, effects the desired displacement of the said frame and of
the plate e (see Figures 2, 3, 4). By means of the spiral spring of fixed on the
one hand to the frame G and on the other hand to the lever o', the said lever is
returned to its initial position and the pin of the arm & is placed out of reach
of the lever p p. The top leather piece e then lies exactly below the heel.,
The second cam t, in the grooved part of which the small palley or roller of
the lever D is located theu commences to act and through the medium of the
lever D, causes the large piston d to rise, so that the driving hammers d' of the
latter will fix the top leather piece on to the heel by means of smaller nails. As
soon as this has been effected, the device for trimming the front surface of the
heel is set in action in the manner hereafter described.
Upon the interior face of the large toothed wheel a pin g (Figures 1, 2 and 7)
is provided to act upon an arm q which is keyed upon a shaft q outside of the
frame G. A second arm g is fixed about centrally upon the shaft q' and this
arm q3 engages with an opening in the rod r', which carries at its upper end the
knife for trimming the front of the heel. Thus the said knife r is raised, when
the pin y commences to act, and the front surface of the heel is trimmed, after
which the parts resume their initial positions.
Before the shaft 2, upon which the cams s, t and the discs n n are keyed, has
executed one complete revolution, the pin so herein before referred to of the larger
cam s, again passes below the hook of the rod f2 and draws the same upward.
Owing to the herein before described connection, this movement is likewise shared
by the rod h, which latter will so displace the shaft i, that the armi, fixed
thereon, arrives between the pulley m and the tappet k', whereby the said tappet
is forced out of the notch me of the pulley m. By a spring (Figure 4) the
tappet is pressed against the arm i, and is there stopped. From this moment
the machine runs idle. Ultimately also the larger recesses n* of the disc nn
having re-entered into engagement with the small pulleys or rollers of the levers A,
and consequently the pressing rod a having been lifted, and the lever pl p² under
the action of the spring p* having returned the displaceable frame e to its initial

page_text: position, the operator can take off the finished shoe and subsequently again actuate
the machine in the manner before described.
As is apparent from Figures 9 to 12, the above described machine may, without
any material alterations, be employed for producing heels for military boots and
shoes in which a tip or iron plate is used in substitution for the top-leather piece.
In this case the heel together with the iron plate is first pierced and then after a
rotary displacement of the piston the iron plate is nailed on to the heel. The
displaceable frame c is thus rendered entirely superfluous.
The two pistons d and e have strokes of equal length and they are guided in
the same manner as the pistons in the first described constructional example, the
only difference being that the exterior piston d guides the awls d' for piercing
the holes, whilst the interior piston e actuates the driving hammers e'. In these
figures the corresponding parts are marked by the same letters of reference as
those used in Figures 1 to 8.
In the present example the pistons d and e are connected to one another by a
wedge v and to the cylinder 60 by a wedge n. The cylinder 60 in this case is no
longer fixed but is revoluble, and the top-cover 61 is provided with appropriate
holes for the passage of the awls and driving hammers. The arrangement of the
awls d' upon the exterior piston d and of the driving hammers upon the interior
piston e is such, that the position of the driving hammers relatively to the central
line z Figure 11 is exactly the same as the position of the awls relatively to
the central line ¹ 21. In order that, after the holes have been pierced by the awls
and after the latter have receded, the driving hammers e¹ may be brought exactly
beneath the holes, the rotary displacement of the pistons d and e, referred to,
must take place. Such displacement is effected by the lever pl p2, which in the
first described constructional example was employed for displacing the frame c,
which frame however in the latter or second constructional example is no longer
used. The arm pl of this lever is connected to the cylinder 60 by means of a
link and a bolt w; upon the second arm p2 acts at the given moment the
pin of the disk k³, which latter is made axially displaceable upon the shaft k by
the rod o', in the manner herein before described.
During the operation of nailing the heel, the exterior piston d acts first and
pierces the holes simultaneously through the iron and the heel, by means of its
awls d'. When subsequently the awls d' have returned to their lowest position,
the pin of the disk k², displaced by the rod o' commences to act upon the
lever pl and the cylinder 20 together with the two pistons d and e undergo a
rotary displacement to such an extent, that the central line - occupies the
position and the driving hammers e el present themselves exactly below the
holes pierced by the awls. The driving hammers e¹ consequently then occupy
the positions previously occupied by the awls, because the shoe does not participate
in the rotary motion, and they then force the nails, which at the commencement of
the operation were inserted into the top cover 6', into the heel. Ultimately the
knife acting in exactly the same manner as hereinbefore described trims the front
surface of the heel.
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 heel nailing machine of the kind hereinbefore described, in which the
nailing of the heel as well as the fixing of the top leather thereon is effected by
means of two pistons (d and e) having different lengths of stroke and acting one in
the interior of the other, the interior piston (e) of which first drives the nails
into the heel by means of its hammers (el) whereupon the exterior piston (d), after
a temporary lifting of the pressing rod and after a displacement of the top leather
nails the said leather to the heel by means of its driving hammers (d'), substantially
as described and illustrated in the accompanying drawings.
2. In a heel nailing machine the arrangement of the top leather being located

page_text: in a frame (c) below the heel mould, which frame, in order that the top leather
may be brought beneath the heel, is displaced by a lever (p' p²) through the
medium of an arm k2 which is actuated by a tappet (13) of the wheel (1),.
substantially as described and illustrated in the accompanying drawings.
3. In a heel nailing-machine permitting of the production of military boots and
shoes, in which an iron to be fixed simultaneously with the heel, is substituted for
the top leather, the arrangements of parts in such a mauner, that both pistons are
connected to each other as well as to a rotary cylinder (60) surrounding the said.
pistons, and that the exterior piston (d) pierces the necessary holes by means of
awls (d), whereupon by means of the disc (k), displaceably arranged upon the
shaft (k), and through the medium of a suitable rod-connection, a rotary dis-
placement of the cylinder (60) with the pistons is so effected that the hammers (e¹)
of the interior piston (e) present themselves exactly beneath the previously pierced
holes and drive the nails home, substantially as described and illustrated in the
accompanying drawings.
Dated this 21st day of May 1896.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, W.C., Agents for the Applicant..