IMPROVEMENTS IN THE MANUFACTURE OF HORSE-SHOES AND IN THE MACHINERY OR APPARATUS EMPLOYED THEREFOR.
Year: 1875

page_text: LETTERS PATENT to Alphonse Pilté, of No. 20, Rue des Petits Hotels,
Paris, in the Republic of France, Civil Engineer, for the Invention
of "IMPROVEMENTS IN THE MANUFACTURE OF HORSE-SHOES AND IN THE
MACHINERY OR APPARATUS EMPLOYED THEREFOR.
COMPLETE SPECIFICATION filed by the said Alphonse Pilté at the
Office of the Commissioners of Patents, with his Petition and
Declaration, on the 5th June 1875, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALPHONSE
PILTÉ, of No. 20, Rue des Petits Hotels, Paris, in the Republic of France,
Civil Engineer, send greeting.
WHEREAS I am in possession of an Invention for “ IMPROVEMENTS IN
THE MANUFACTURE OF HORSE-SHOES AND IN THE MACHINERY OR APPARATUS
EMPLOYED THEREFOB," and have petitioned Her Majesty to grant unto me,
my executors, administrators, and assigns, Her Royal Letters Patent

page_text: for the same, and have made solemn Declaration that I verily believe
myself to be the first and true Inventor thereof.
NOW KNOW YE, that I, the said Alphonse Pilté, do hereby declare
that the following Complete Specification, under my hand and seal, fully
describes and ascertains the nature of my said Invention and the manner
in which the same is to be performed, reference being had to the Drawing
hereunto annexed and forming part of this Specification, and to the
figures and letters marked thereon, that is to say :—

page_text: °
Figure 7 is a view of a horse-shoe developed, seen flatwise, and Figure
8 shows a side view of same. The bar of iron which is to be submitted
to the operation is at first flatted as nearly as possible to the required
section; one of its ends is then placed in the rolls represented in elevation
in Figure 5, from which it egresses after taking all the forms of the
rolls. The rolls consist as usual of two uprights E and F supporting
two shafts C and D put in motion by the gearing G and H, which are
driven by the shaft I. A and B are the rolls properly so-called keyed
on their shafts. The roll B is grooved in the middle to receive the iron
a, which is to be converted to the form before described, and the other
roll is provided with a round projecting washer.
Figure 6 shews a side view of the groove in the roll B. It will be
seen that this groove is of the same shape as Figure 7, except that it is
adapted to produce two developed pieces; each turn of the rolls therefore
produces two blanks, or it may be made to produce a larger number.
The projecting edges c and d serve to form notches on the bar and
determine the length of the piece.
The profile of the groove in the roll B forms as I have before described
the profile of the iron seen flatwise, but that of the edge view is obtained
at the same time.
It will be seen in Figure 5 that the distance between the interior
faces of the cheeks of the roll B varics at different parts, and that the
neck or groove is narrower at the bottom than at the exterior. These
differences of width of the neck naturally produce the inequalities in the
thickness of the iron. It will thus be seen that my method of shaping
the blanks is simple and economical, and that to manufacture shoes of
different numbers and to vary their shapes in any direction it is merely
necessary to change the rolls.
For the second operation, videlicet, the bending, I use either the
horizontal bending machine shown in Figures 1 and 2, or the vertical
bending machine shown in Figures 3 and 4.
The horizontal bender Figures 1 and 2 is constructed of a mould or
template A, having the interior form of the shoe of two bending rollers
B which are jointed on the slides C, C, which move in a moveable cross
piece D. These slides have a common butting point E, against which:
they are kept when the machine is at rest by means of the springs R, R.

page_text: The cross piece D is provided with two transverse guides G, forming part
with it; these guides work in grooves H made on a table or rest plate K,
which plate also carries the template or mould A. which is fixed to it by
bolts.
The to-and-fro movement is given to the cross piece D by means of a
connecting rod ✗, receiving its movement from any suitable motivo
power.
Figure 2 shews the blank V at the moment when the bending rollers
are about to commence to work by the action of the connecting rod X.
This movement being given in the direction of the arrow F, the rollers B
will remain applied against the exterior of the blank by the pressure
of the springs, and cause the pressure to be applied exactly on the
circumference of the mould A, the sinuosities of which it will embrace.
To vary the dimensions or curve of the horse-shoe it will therefore only
be necessary to change the template or mould A. The springs R may
be of a spiral or other form; their pressure is regulated by screws Z.
The same method of regulation may be employed at the central part
for varying the distance apart of the rollers B.
The bent iron may be removed from the template or mould either by
hand, or by means of a treadle, or automatically.
The vertical bender (Figures 3 and 4) operates also by means of two
rollers working by strong pressure on the iron to be bent, and causing
it to take the form of a matrice, which may be changed as required. It
consists of a skeleton frame A, B, C, D, E, F, G, H, I, supporting the
various parts of the bending mechanism; J is a toothed wheel taking
into the pinion K which receives motion from the shaft L, on which the
driving pulley N, the loose pulley M, and the fly wheel O are mounted.
The wheel J is provided with a stud P to which is jointed one of the
heads of the connecting rod Q, the other head is jointed to the stud R
forming part of the slide S, T, U; the guides of this slide are mounted
on the frame, and are shown at V, X, Figure 3.
On the slide and at an equal distance from its axis are placed two
pivots Y and Z, receiving the centre of two levers with arms of equal
length A, B, and C³, D¹. (The arms of these levers may also be of
unequal length.) The extremities of these levers are provided with a
roller; the upper rollers are plain, and those at the bottom are provided
with flanges or checks.

page_text: provements on the go.
The upper rollers are for the purpose of following all the sinuosities
of a steel mould E, F, and the bottom rollers describe a similar
path in the opposite direction and act on the iron to be bent G', H¹,
(shown in blue lines) to cause it to take the form of [the steel mould or
template I¹.
To ensure the adherence of the upper rollers against the mould tho
axes are united by a spring not shown on the Drawing.
The results which I have herein-before described are obtained by the
ascending and descending movement of the slide worked by the con-
necting rod Q.
It will be easily understood that by changing the curves of the upper
mould they are reproduced inversely below, and I can thus vary the
curves of the iron to be bent.
When the iron is bent it has to be detached or removed from the
template or mould to give place to another. This removal is effected by
mechanical means by the buffer J¹ cast on the slide, and which moves.
in descending to the end of its stroke, the piece a, b, c, pivotting on the
axis d, e; a counterweight f restores this piece to its place when the
buffer releases it. The piece or plate g serves to conduct the partly made
shoe a little in advance of the machine. The basin / is filled with water
which serves to wet the rollers in order to cool them when they arrive
at their lower stroke.
I effect the setting and stamping of the shoe, and I also pierce the
holes by means of the arrangement represented in Figures 9 and 10 with
one single blow, preferably by means of a steam hammer.
A represents the partly made shoe to which the setting is to be given,
and in which also and with the same blow the holes are pierced. It fits.
as seen in Figure 9 in the matrice C fixed on the anvil of the steam.
hammer. B is another matrico adjusted in a similar manner to the
matrice C, but fixed to the head of the steam hammer. These pieces B
and C have projections and recesses which vary according to the
number or size of the shoe or the kind of setting. a represents one of
the punches for piercing the holes in the shoe; this punch is rather
shorter than the thickness of the iron in order to leave a thin web at
the bottom; I afterwards drive out this web by a separate operation. It
will thus be understood that when the head of the steam hammer is
lowered on to the piece or horse-shoe A, it will give it all the forms of

page_text: Fifthly. The combination of matrices for setting and punching the
horse-shoe, and arrangement of parts for the removal of the finished shoe
as herein-before described and represented in Figures 9 and 10 of the
accompanying Drawing.
In witness whereof, I, the said Alphonse Pilté, have hereto set
my hand and seal, this Third day of June, One thousand eight
hundred and seventy-five.