IMPROVEMENTS IN MACHINERY OR APPARATUS FOR POLISHING SHEET IRON OR OTHER METAL
Year: 1862

page_text: LETTERS PATENT to Bernard Lauth, late of Pittsburg, Pennsylvania,
United States of America, but at present residing at Reichshoffen, in
the Empire of France, for the Invention of "IMPROVEMENTS IN MACHINERY
OR APPARATUS FOR POLISHING SHEET IRON OR OTHER METAL."
Scaled the 13th April 1868, and dated the 18th October 1862.
PROVISIONAL SPECIFICATION left by the said Bernard Lauth at the
Office of the Commissioners of Patents, with his Petition, on the 18th
October 1862. .
I, BERNARD LAUTH, lato of Pittsburg, Pennsylvania, United States of
America, but at present residing at Reichshoffen, in the Empire of France, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR POLISHING SHEET IRON OR OTHER METAL," to be as
follows:-
I employ three rolls mounted in a suitable frame and placed one above the
other, their axes being horizontal and parallel to each other. The upper and
lower rolls are of equal diameters; and the second or intermediate roller which
works in contact with the other two, is of a smaller diameter. The sheet iron
to be polished is to be passed (either one or two sheets at a time) between
these rolls, and their operation will polish the sheets and give them a beautiful
lustre. By the employment of three rolls of different diameters arranged in
the aforesaid manner, a sufficient pressure can be obtained to lengthen or draw
the thinnest sheet iron, which has been hitherto unattainable by the application

page_text: of rolls arranged in any other way. By passing two sheets at a time through
the rolls the pressure will be augmented, and the amount of work performed
I will also be doubled.
To illustrate the principle of my Invention, I may further state that by this
peculiar arrangement of rolls the smaller or middle roll acts upon the other
rolls like a hammer with a small surface acts upon an anvil with a larger
surface. It draws the iron with less pressure more than a hammer with a
large surface would draw the same. By rolling and polishing sheet iron in-
tended for tin plates in this machine, a great saving in the amount of tin
will be effected and a great improvement in the appearance of the plates when
tinned will be produced.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Bernard Lauth in the Great Seal Patent Office on the 18th
April 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, BERNARD
LAUTH, late of Pittsburgh, Pennsylvania, United States of America, but at
present residing at Reichshoffen, in the Empire of France, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighteenth day of October, 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 Bernard Lauth, Her special licence that I, the said Bernard
Lauth, my executors, administrators, and assigns, or such others as I, the
said Bernard Lauth, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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 OR APPARATUS FOR POLISHING SHEET IRON OR OTHER METAL," upon the
condition, amongst others, that I, the said Bernard Lauth, 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.

page_text: NOW KNOW YE, that I, the said Bernard Lauth, 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 state-
ment in writing, and on reference to the accompanying Drawing, that is to
say:-
I employ three (or more) rolls mounted in a suitable frame and placed one
above the other, their axles being horizontal and parallel to each other. I
prefer the use of three rolls only, the upper and lower rolls being of equal
diameters, and the other or intermediate roll, which works in contact with the
other two, being of a smaller diameter. The sheet iron or other metal to be
polished is to be passed (either one or more sheets at a time) between these
rolls, and their operation will polish the sheets and give them a beautiful lustre.
By the employment of three rolls of different diameters arranged in the
aforesaid manner, a sufficient pressure can be obtained to lengthen or draw
the thinnest sheet iron or other metal, which has been hitherto unattainable
by the application of rolls arranged in any other way. By passing two or more
sheets at a time through. the rolls, the pressure will be augmented, and the
amount of work performed will also be proportionally increased.
To illustrate the principle of my Invention, I may further state that by this
peculiar arrangement of rolls the smaller or middle roll acts upon the other
rolls like a hammer with a small surface acts upon an anvil with a larger
surface. It draws the iron or other metal with less pressure more than a
hammer with a large surface would draw the same. By rolling and polishing
sbeet iron intended for tin plates in this machine, a great saving in the amount
of tin will be effected, and a great improvement in the appearance of the plate
when tinned will be produced.
.
.
Such being the nature and object of my said Invention for "Improvements
in Machinery or Apparatus for Polishing Sheet Iron or other Metal," I
will now proceed to describe more in detail the manner in which the same is
to be or may be performed or carried into practical effect, and, in order that
the same may be distinctly understood, I have annexed hereunto a Drawing
illustrative thereof, and have marked the same with letters of reference
corresponding with those in the following explanation thereof, that is to
say:
The annexed Drawing represents a side or end view of my improved rolls,
and fully illustrates the method of carrying my Invention into practical
effect.
A, A, A, is the framework or "housing" of the apparatus supporting the
three rolls B, C, D, in suitable bearings E, E, E. These rolls are placed one

page_text: above the other with their axles horizontal and parallel to each other. It
will be observed that the roller C is much smaller in diameter. than the
rollers B and D, being little more than one half the diameter of the others,
and this difference of diameter constitutes one of the principal features of
novelty in my Invention, whereby I am enabled to roll much thinner-sheets
than heretofore, with much less power, and at the same time to impart a
beautiful polish or lustre to, their surface. The bearings E, E, E, of the rolls
are so arranged as to be capable of adjustment in a vertical direction in the
usual manner, and the surfaces of the rolls are forced into closer contact, and
their pressure increased from time to time by advancing the wedge F by
means of the screw G, G. The rolls are driven in the ordinary. manner,
and are geared together by means of spur wheels as usual.
Having now described the nature and object of my said Invention for
"Improvements in Machinery or Apparatus for Polishing Sheet Iron or
other Metal," together with the manner in which the same is to be or may
be performed or carried into practical effect, I would remark in conclusion,
that I claim as my Invention, the employment of three or more cylinders
or rolls of different diameters substantially as above explained, and illustrated
in the annexed Drawing, for the purpose of polishing thin sheet iron or other
metal by the rolling process.
In witness whereof, I, the said Bernard Lauth, have hereunto set my
hand and seal; this Sixteenth day of April, in the year of our Lord
One thousand eight hundred and sixty-three.
BERNARD LAUTH. (L.S.)