AN IMPROVED CENTRIFUGAL ADRADATING PAD BREAZING STONES
Year: 1862

page_text: LETTERS PATENT to. Alphonse Couvreux, of 393, Rue Saint Martio,
Paris, in the Empire of France, and of 42, Bridge Street, Blackfriars,
London, Contractor, for the Invention of. "AN IMPROVED CENTRIFUGAL
ADRADATING PAD BREAZING STONES"
Sealed the 13th January 1868, and dated the 15th July 1862.
PROVISIONAL SPECIFICATION left by the said Alphonse Couvreux at the
Office of the Commissioners of Patents, with his Petition, on the 15th
July 1862. .
"
I, ALPHONSE COUVREUX, of 333, Ruo Saint Martin, Paris, in the Empire
of France, and.of .42, .Bridge Street, Blackfriars, London, Contractor, do
hereby declare the nature of the said Invention for "AN IMPROVED CENTRI-
FUGAL APPARATUS FOR BREAKING STONES," to be as follows:-
My Inventions relates to an apparatus for breaking stones for the maintain-
auce of roads railway's. I have à large wheel on which are rivetted plates
so as to form a series of paddles, and these are rivetted to angle iron so that the
whole is firmly fastened, and made sufficiently strong, it works in a wooden
frame, which also carries the bearings of the shaft or axlo over this wheel, and
inside the frame I' place a number of plates of strong iron at such an angle
as to enhance the strength while at the same time they are so fixed to break
stones or other earthy matter that may be thrown.against them with great
force at which the wheel throws them, and after being dashed as it were off
at a tangent from the different teeth or paddles on the rim, afterwards they
finally arrive on a shoot down which they slide into a leap, and are ready

page_text: for use at the opposite side of the frame. To this shoot there is a platform
with an inclined board, down which the stones or other matter descends on
the teeth or paddles of the wheel, the latter being driven by a strap from a
steam engine.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alphonso Couvreux in the Great Seal Patent Office on the
15th January 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALPHONSE
COUVREUX, of 333, Rue Saint Martin, Paris, in the Empire of France, and
of 42, Bridge Street, Blackfriars, London, (Contractor,) send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of July, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Alphonse Couvreux, Her special licence that I, the said Alphonso Couvreux,
my executors, administrators, and assigns, or such others as I, the said Alphonso
Couvreux, my executors, administrators, 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 "AN IMPROVED CEN-
TRIFUGAL APPARATUS FOR BREAKING STONES," upon the condition (amongst
others) that I, the said Alphonse Couvreux, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands and
seals, should particularly 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 Alphonse Couvreux, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
My Invention relates to an apparatus for breaking stone for the main-
tainance of roads, railways, &c. I have a large wheel on which are rivetted
plates so as to form a series of paddles, and these are rivetted to angle iron
so that the wholo is firmly fastened, and made sufficiently strong. It works

page_text: in a wooden frame, which also carries the bearings of the shaft or axle ;
over this wheel and inside the frame I place a number of plates of strong
iron at such an angle as to enhance their strength, while at the same time
they are so fixed to break stones or other earthy matter that may be.thrown
against them with great force at which the wheel throws them, and after
being dashed as it were off at a tangent from the different teeth or paddles on.
the rim they finally arrive on a shoot, down which they slide into a heap, and
are ready for use. At the opposite side of the frame to this shoot there is a
platform with an inclined board down which the stones or other matters
descend on the teeth or paddles of the wheel, which is driven by a strap from.
a steam engine.
. In order more clearly to illustrate the foregoing description, I have to this
Specification appended the accompanying Drawings it being understood that
variations of any or all of the parts may be made so long as the main principles
of my Invention are retained.
Fig. 1 is a sectional elevation following the line.1, 2, (Fig. 2) shewing
the machine completely mounted, and ready for use; Fig. 2 is another and
similar section on the lines 3, 4, 5, 6.
It will be seen from these Drawings that my machine is composed of a
large cast-iron wheel A, mounted on a wrought-iron axle B, which is driven
by a pulley C, which receives motion through the belt D, connected with a
portable engine or otherwise as most convenient. The large wheel A is
furnished on its periphery with a series of cutting edges or teeth a, b, c, d, e, f,
placed equidistantly, and each armed with a piece of steel or iron bolted
through the tire of the wheel A; these pieces of iron or steel preserve the
cast iron from the blows of the stones during the process. This wheel is
placed within a case formed of two frames of wood E and F, on which frames
are supported the bearings of the axle B. This same frame carries a platform
G, placed above the wheel A, which carries the stones to be broken. This
platform communicates with the wheel A, by means of the inclined plane or
slide H, down which the stones glide on their passage to the wheel A. The
action is as follows:-The large wheel being driven at great speed the stones
falling down the inclined plane H, are caught by the teeth a, b, c, d, e, f, and
are thrown against the faces of the plates M, N, O, P, placed within the
cover or case, and immediately above the wheel. The force with which the
stones are thrown against these plates breaks them in small pieces, then after
they have been thrown several times against the plates they fall down the
incline K, and they will be found broken in pieces of the requisite size. From
thence they are ready to be taken away in a tumbril or waggon for use.

page_text: Having now described my Invention and the best method of carrying it out
in practice, I wish it understood that what I claim, and wish secured to me,
by the before in part recited Letters Patent, is,-
First, the use and construction of a machine for breaking stones substantially
as herein described and set forth, and more fully illustrated in the accom-
panying Drawings.
Secondly, the use of a drum or wheel furnished or armed with teeth for the
purpose of throwing the stones against the resisting surfaces, which I mako
plain, curved, or roughened.
Thirdly, the construction of the drum or wheel A, with the teeth placed
more or less angularly, the teeth being formed of wrought or cast iron or
steel, or if circumstances require it, the use of a drum without any teeth at
all.
Fourthly, the use and application of centrifugal force for breaking stone
applied after the manner as herein described and set forth, and more fully
illustrated in the accompanying Drawings.
In witness whereof, I, the said Alphonse Couvreux, havo hereunto set my
hand and seal, this Fifteenth day of January, One thousand eight
hundred and sixty-three.