IMPROVEMENTS IN THE MANUFACTURE OF THIN SHEETS OR PLATES OF STEEL, OR OF STEEL AND IRON
Year: 1869

page_text: LETTERS PATENT to Walter Robinson, of Gospel Oak Iron Works,
Tipton, in the County of Stafford, Iron Master, for the Invention of
"IMPROVEMENTS IN THE MANUFACTURE OF THIN SHEETS OR PLATES OF STEEL,
OR OF STEEL AND IRON."
Sealed the 10th September 1869, and dated the 21st April 1869.
PROVISIONAL SPECIFICATION left by the said Walter Robinson at
the Office of the Commissioners of Patents, with his Petition, on
the 21st April 1869.
I, WALTER ROBINSON, of Gospel Oak Iron Works, Tipton, in the
County of Stafford, Iron Master, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF THIN SHEETS OR
PLATES OF STEEL, OR OF STEEL AND IRON," to be as follows:-
In the manufacture of thin sheets or plates of steel by rolling great
waste and consequent loss results from the adhesion together of the
sheets or plates when two or more are rolled upon one another, or when
the sheet or sheets are doubled, that is to say, when two or more sheets

page_text: or plates are rolled upon one another, or when a sheet or plate is doubled
or folded upon itself during the rolling process, so as to produce two,
four, six, eight, or other number of thicknesses which are rolled together
or upon one another, it is found that considerable adhesion between the
sheets takes place, and on opening or separating the sheets they are
more or less damaged in the act of separating them. This inconvenience
and loss, resulting from the contiguous surfaces of the sheets sticking or
adhering together, prevent the use of thin plates or sheets of steel for
various purposes for which they would otherwise be employed.
The object of my Invention is to prevent the adhesion described of
sheets or plates of steel in the process of rolling.
My said Invention consists in manufacturing thin sheets of steel from
bars, slabs, or other pieces of steel having on their opposite faces thin
layers of wrought or malleable iron. In preparing the said bars or pieces
I employ a pile or mass of steel made in the ordinary way, excepting
that the top and bottom of the pile or mass are made of bars or pieces
of wrought or malleable iron. This pile or mass is made into a bar or
slab in the ordinary way, and from bars or slabs so made I roll thin
sheets by the ordinary rolling and doubling processes. The coating of
wrought or malleable iron on each side of the sheet or plate prevents the
adhesion together of the sheets or plates, but is so thin as not sensibly
to affect the sheets of steel in their application to any of the purposes to
which thin sheets of steel are or may be applied.
By my Invention the production of thin sheets of steel is so much
facilitated that they may be economically applied to many purposes to
which sheets of wrought iron are now applied.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Walter Robinson in the Great Seal Patent Office
on the 9th October 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WALTER 3
ROBINSON, of Gospel Oak Iron Works, Tipton, in the County of Stafford,
Iron Master, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of April, in the year

page_text: of our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Walter Robinson, Her special licence
that I, the said Walter Robinson, my executors, administrators, and
assigns, or such others as I, the said Walter Robinson, 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 "IMPROVEMENTS IN
THE MANUFACTURE OF THIN SHEETS OR PLATES OF STEEL, OR OF STEEL AND IRON,"
upon the condition (amongst others) that I, the said Walter Robinson,
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 Walter Robinson, do hereby declare
the nature of the 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, that is to say :-
In the manufacture of thin sheets or plates of steel by rolling great
waste and consequent loss results from the adhesion together of the
sheets or plates when two or more are rolled upon one another, or when
the sheet or sheets are doubled, that is to say, when two or more sheets
or plates are rolled upon one another, or when a sheet or plate is doubled
or folded upon itself during the rolling process so as to produce two,
four, six, eight, or other number of thicknesses which are rolled together
or upon one another, it is found that considerable adhesion between the
sheets takes place, and on opening or separating the sheets they are
more or less damaged in the act of separating them. This inconvenience
and loss, resulting from the contiguous surfaces of the sheets sticking
or adhering together, prevent the use of thin plates or sheets of steel
for various purposes for which they would otherwise be employed.
The object of my Invention is to prevent the adhesion described of
sheets or plates of steel in the process of rolling.

page_text: My said Invention consists in manufacturing thin sheets of steel from
bars, slabs, or other pieces of steel having on their opposite faces thin
layers of wrought or malleable iron. In preparing the said bars or
pieces I employ a pile or mass of steel made in the ordinary way
excepting that the top and bottom of the pile or mass are made of bars
or pieces of wrought or malleable iron. This pile or mass is made into
a bar or slab in the ordinary way, and from bars or slabs so made I roll
thin sheets by the ordinary rolling and doubling processes. The coating
of wrought or malleable iron on each side of the sheet or plate prevents
the adhesion together of the sheets or plates, but is so thin as not
sensibly to affect the sheets of steel in their application to any of the
purposes to which thin sheets of steel are or may be applied.
By my Invention the production of thin sheets of steel is so much
facilitated that they may be economically applied to many purposes to
which sheets of wrought iron are now applied.
Having now described the nature of my Invention and the manner in
which the same is to be performed, I wish it to be understood that I do
not limit myself to the precise details herein-described, as the same may
be varied without departing from the nature of my Invention, but I
claim as my Invention the improvements in the manufacture of thin
sheets or plates of steel or of steel and iron herein-before described, that
is to say, making the said thin sheets or plates from bars, slabs, or other
pieces of steel having on their opposite faces thin layers of wrought or
malleable iron, whereby the adhesion of the sheets or plates together
during the rolling and doubling or folding operations to which they are
subjected is prevented, substantially as described.
In witness whereof, I, the said Walter Robinson, have hereunto
set my hand and seal, this Seventh day of October, in the year
of our Lord One thousand eight hundred and sixty-nine.
Witness,
RICHARD WEBB,
Walsall.
WALTER ROBINSON. (L.S.)