AN IMPROVEMENT OR IMPROVEMENTS IN ROLLERS OR CYLINDERS FOR PRINTING FABRICS
Year: 1856

page_text: LETTERS PATENT to John James Rippon, of Oakenshaw Print Works,
near Accrington, in the County of Lancaster, Manufacturer, for the
Invention of "AN IMPROVEMENT OR IMPROVEMENTS IN ROLLERS OR CYLINDERS
FOR PRINTING FABRICS."
PROVISIONAL SPECIFICATION left by the said John James Rippon
at the Office of the Commissioners of Patents, with his Petition, on the
29th March 1856.
I, JOHN JAMES RIPPON, of Oakenshaw Print Works, near Accrington, in
the County of Lancaster, Manufacturer, do hereby declare the nature of the
said Invention for "AN IMPROVEMENT OR IMPROVEMENTS IN ROLLERS OR CYLINDERS
FOR PRINTING FABRICS," to be as follows:-
My said Invention consists in the following method of manufacturing the
said rollers or cylinders; namely, I make a core or cylinder of iron of some-
what less diameter than the roller or cylinder to be manufactured. I place
the said core in a suitably prepared mould, and cast thereon a hollow cylinder
or casing of copper; I prefer to make the said core of cast iron, but I do not
limit myself thereto. The essence of my Invention consists in making rollers
or cylinders for printing fabrics, by casting a hollow cylinder or casing of copper
upon a cylinder or core of iron.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John James Rippon in the Great Seal Patent Office on the
27th September 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
JAMES RIPPON, of Oakenshaw Print Works, near Accrington, in the County
of Lancaster, Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of March, in the year of our Lord
One thousand eight hundred and fifty-six, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said John James Rippon, Her special licence that I, the said John
James Rippon, my executors, administrators, and assigns, or such others as
I, the said John James Rippon, 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
IMPROVEMENT OR IMPROVEMENTS IN ROLLERS OR CYLINDERS FOR PRINTING FABRICS,"
upon the condition (amongst others) that I, the said John James Rippon,
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 John James Rippon, 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:―
My Invention consists in the method herein-after particularly described of
manufacturing the said rollers or cylinders for printing fabrics. In carrying my
Invention into effect, I make a core or hollow cylinder of iron, or other suitable
metal, of somewhat less external diameter than the diameter of the roller or
cylinder to be manufactured. The interior of the said core is of a size proper
to receive the axis on which the roller or cylinder is to be fixed. I place the
said core in a mould prepared .in. the manner herein-after described, and cast
on the said core a hollow cylinder or casing of copper. I prefer to make
grooves or projections on the said core, or to make indentations therein, so that

page_text: the casing of copper cast thereon shall be firmly fixed, and not liable to be
detached from the said core during the finish of the roller, or in using it when
finished.
Although I do not limit myself to any particular method of casting the
hollow copper cylinder upon the core, yet I prefer to make the mould in which
the casting is effected of sand, and I use the said mould hot, that is to say, I
surround the said sand mould with fire, or otherwise heat it, so that the copper
cast therein shall cool slowly, and have thereby a uniform texture. The
porosity of the sand mould facilitates the escape of air in the process of casting.
The copper I employ is either commercial copper or such alloys as, consisting
mainly of copper, are possessed of the mechanical and chemical properties
requisite for printing rollers or cylinders.
I do not think it necessary to explain more minutely, or to illustrate by
Drawings, the casting of the copper cylinders upon the cores, as I believo a
caster of ordinary skill will be able to carry my Invention into effect by means
of the description of my said Invention herein-before given. The rollers or
cylinders are finished after casting by the ordinary turning or drawing processes
preparatory to being engraved.
By my improvement or improvements in rollers or cylinders for printing
fabrics, the said rollers or cylinders are made at much less cost than the rollers
or cylinders made according to the ordinary method of manufacture.
Having now described the nature of my said Invention, and the manner of
carrying the same into effect, 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 said Invention; but I claim as my
Invention the improvement or improvements in rollers or cylinders for printing
fabrics herein-before described, that is to say, constructing or making the said
rollers or cylinders of a hollow cylinder of copper, or alloy consisting mainly of
copper, cast upon a core or foundation of iron, or other suitable and less costly
material, than the metal of which the said hollow cylinder is made.
In witness whereof, I, the said John James Rippon, have hereunto set
my hand and seal, this Twenty-sixth day of September, the year of our
Lord One thousand eight hundred and fifty-six.
Witness,
ALFRED BURTON.
JOHN JAMES RIPPON. (L.s.)