IMPROVEMENTS IN MACHINERY FOR ROLLING BARS FOR THE MANUFACTURE OF SHOES FOR HORSES AND OTHER HOOFED ANIMALS
Year: 1870

page_text: LETTERS PATENT to Edward Cottam, of Wimbledon, in the County of
Surrey, for the Invention of "IMPROVEMENTS IN MACHINERY FOR ROLLING
BARS FOR THE MANUFACTURE OF SHOES FOR HORSES AND OTHER HOOFED
ANIMALS."
Sealed the 1st July 1870, and dated the 4th January 1870..
PROVISIONAL SPECIFICATION left by the said Edward Cottam at the
Office of the Commissioners of Patents, with, his. Petition, on the
4th January 1870.
I, EDWARD COTTAM, of Wimbledon, in the County of Surrcy,, do
hereby declare the nature of the said Invention for "IMPROVEMENTS. IN
MACHINERY FOR ROLLING BARS FOR THE MANUFACTURE OF SHOES FOR HORSES AND
OTHER HOOFED ANIMALS," to be as follows:-
The object of my Invention is to roll iron or other metal bars of
irregular form and in suitable lengths to be afterwards converted into
shoes for horses and other hoofed animals. The machinery consists of a
pair of rolls fixed on shafts and mounted in suitable frames and geared
in any convenient manner as usual, and I construct the rolls in such

page_text: manner that their action is intermittent, that is to say, that they act
upon the bar during only a portion of their revolution. The faces or
peripheries of the rolls are carved, moulded, or otherwise made with the
form of die required, according to the irregularities of the bars to be rolled,
but on one of the rolls, say the upper, the die only extends from one-third
to one-half round the face of the roll, viz., for a distance equal to the
length of one bar to be rolled, so that during the remaining half to two-
thirds of the revolution of the roll the said roll does not act. The other
or lower roll may be formed with the dic for the whole of its periphery
if desired or only for an extent equal to that of the die on the upper roll.
I also mount two flat or convex rings loosely on the shaft of one of the
rolls (say the lower), one ring being on each side of the roll; these
rings have their peripheries slightly conical or bevilled, and they are
pressed against the work at the time of rolling by means of adjustable
friction rollers at their back or by adjustable flanges on the -sides of the
other roll, and they have sufficient play to allow of the escape of the bar
after it has passed through the rolls and proceeded beyond the point of
pressure caused by the friction rollers. The iron or metal to be rolled
is first brought to the proper length and approximate form; it is
then heated, and by a feeder worked by a tappet or otherwise is
introduced between the rolls, it passes between the dies and is delivered
at the back as soon as the side rings are released from the pressure
of the friction rollers.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Cottam in the Great Scal Patent Office 2
on the 2nd July 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
COTTAM, of Wimbledon, in the County of Surrey, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of January, in the year of 3
our Lord One, thousand eight hundred and seventy, in the thirty-third
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Edward, Cottam, Her special licence, that .I,
the said Edward Cottam, my executors, administrators, and assigns,
or such others as I, the said Edward Cottam, my executors, administrators, 3

page_text: and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY FOR
ROLLING BARS FOR THE MANUFACTURE OF SHOES FOR HORSES AND OTHER HOOFED
ANIMALS," upon the condition (amongst others) that I, the said Edward
Cottam, my executors or administrators, by an instrument in writing
undér my, or their, or one of their hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same
to be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Edward Cottam, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in. and by
the following statement thereof, reference being had to the accom-
panying Drawings, that is to say :-
The object of my Invention is to roll iron or other metal bars of
irregular form and in suitable lengths to be afterwards converted into
shoes for horses and other hoofed animals. The machinery consists
of a pair of rolls fixed on shafts and mounted in suitable frames
and geared in any convenient manner as usual, and I construct the
rolls in such manner that their action is intermittent, that is to say,
that they act upon the bar during only a portion of their revolution.
The faces or peripheries of the rolls are carved, moulded, or otherwise
made with the form of die required, according to the irregularities of
the bars to be rolled, but on one of the rolls, say the upper; the die
only extends about one-third to one-half round the face of the roll,
viz., for a distance equal to the length of one bar to be rolled, so that
during the remaining half to two-thirds of the revolution of the roll
the said roll does not act. The other or lower roll may be formed
with the die for the whole of its periphery if desired, or only for an
extent equal to that of the die on the upper roll. I also mount two
flat or convex rings loosely on the shaft of one of the rolls (say, the
lower), one ring being on each side of the roll; these rings have
their peripheries slightly conical or bevilled, and they are pressed
against the work at the time of rolling by means of adjustable friction

page_text: rollers at their back or by adjustable flanges on the sides of the other
roll, and they have sufficient play to allow of the escape of the bar after
it has passed through the rolls and proceeded beyond the point of
pressure caused by the friction rollers. The iron or metal to be rolled
is first brought to the proper length and approximate form; it is 5
then heated, and by a feeder worked by a tappet or otherwise is intro-
duced between the rolls; it passes between the dies, and is delivered at
the back as soon as the side rings are released from the pressure of the
friction rollers.
My Invention will be fully understood on reference to the accom- 1
panying Drawings, which represent machinery constructed according to
my improvements.
Figure 1 is a longitudinal section taken through the rolls; Figure 2 is
a cross section, and Figure 3 a horizontal section. The machine shown
in these Figures is arranged to roll iron with bevilled sides as is often ]
required for horse-shoes. Figure 4 shows the rolls as constructed
for a similar machine where the sides of the iron are to be rolled
parallel. The same letters apply to similar parts of the machine in each
Figure.
a, a, represent the frames or standards of the machine firmly bolted
to a bed plate b; c is the driving roll which carries the die d or segment
made to the form required, and which is firmly clipped and held in.
its place by two rings e, e. The died here shown is intended to roll
bars with a central longitudinal groove; such bars being each subse-
quently divided longitudinally so as to make two shoes, the form of
die is however optional. The roll c is driven by spur wheel and pinion
or in any convenient manner and the speed is regulated by and the
power stored in a fly wheel. fis the following roll, which is encircled
by a fixed ring or die g, having the periphery turned to the required
width, and with a projecting V around the centre for the purpose of
grooving the iron longitudinally in order that it may be subsequently
cut through to make two bars suitable for two shoes, as herein-before
explained; h, h, are two loose rings made to the exact bevil that is
required for the sides of the iron to be rolled; these rings are pressed
and held against the die d in the one roll and the ring g`in the other roll
by means of friction rollers i, i, revolving in bearings j, j, which arẻ
held together by the adjusting bars k, k.
From the above description it will be understood that the ordinary

page_text: merchant bar iron or steel of any required section after having been
cut into the requisite lengths for forming the shoe iron as herein-
before explained is heated in any suitable furnace and immediately
passed through the machine when it is converted into the desired form
and considerably improved in. toughness and durability from the
rolling and kneading pressure which it undergoes during the process.
It will also be seen that as the die d only extends partly round the
roll c, the action of the roll is intermittent. The cost of the machinery
and the amount of power necessary for the operation are thus greatly
diminished.
In order to ensure the transit of the iron through the rolls at the
exact time that the die is in its proper place for receiving it and giving
it the desired impression I construct a feeder which consists of an
adjustable finger fixed in a V groove on the axis of the driving
roll c.
At each revolution this finger takes hold of and pushes forward
a movable bar m, to the end of which is fixed a feeding iron n, placed
between two guides o, o, on a table p; the bar m is returned to its
original position when released by means of a spring or counterweight.
In cases where the sides of the bars are to be rolled parallel instead
of bevilled the rolls and their respective rings are similar to those
above described with the exception that the two rings h, h, on the
roll fare made with parallel sides and may be bolted firmly on each
side of the fixed ring g, as shown in Figure 4, thus dispensing with the
friction rollers.
It will be seen that in Figures 1, 2, and 3, the driving roll is placed
over the following roll, and in Figure 4 the reverse, the arrangement
bcing optional.
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I declare that I claim as my
Improvements-in Machinery for Rolling Bars for the Manufacture of
Shoes for Horses and other Hoofed Animals,"
"
-
First. Constructing the rolls or either of them or the dies thereon in
such manner that their action is intermittent, substantially as herein-
before described and represented in the accompanying Drawings.
Second: The employment of rings h, h, Figures 1, 2, and 3, mounted
loosely on the shaft of one of the rolls, substantially as herein-before
described and represented in the accompanying Drawings.

page_text: :
Third. The arrangement, substantially as herein-before described and
represented in the accompanying Drawings, for feeding the heated bars.
or blanks to the rolls.
In witness whereof, I, the said Edward Cottam, have hereunto set
my hand and seal, this Twenty-ninth day of June, One thousand
eight hundred and seventy.
Witness,
J. C. MEWBURN,
Patent Agent,
172, Fleet Street,
London.
EDWARD COTTAM. (L.S.)