IMPROVE- MENTS IN THE MANUFACTURE OF PLAIN AND ORNAMENTAL METALLIC TUBES
Year: 1856

page_text: LETTERS PATENT to Edward Hatton, of Birmingham, in the County of
Warwick, Metallic Bedstead Manufacturer, for the Invention of "IMPROVE-
MENTS IN THE MANUFACTURE OF PLAIN AND ORNAMENTAL METALLIC TUBES."
PROVISIONAL SPECIFICATION left by the said Edward Hatton at the
Office of the Commissioners of Patents, with his Petition, on the
4th June 1856.
I, EDWARD HATTON, of Birmingham, in the County of Warwick, Metallic
Bedstead Manufacturer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF PLAIN AND ORNAMENTAL METALLIC
TUBES," to be as follows:-
In manufacturing plain tubes, according to my Invention, I take the skelp
or sheet of metal of which the tube is to be made, and having heated the
same, I force it into a groove formed on a table, on which the heated skelp is
placed. The said skelp is forced into the said groove by means of an axis
or mandril, situated above and in the same plane as the table. In making
ornamental tubes according to my Invention, I use a pair of rolls, the surfaces
of which have been engraved or fashioned so as to give the required flute,
twist, or ornament to the sheet of metal passed between them. The said metal

page_text: so impressed is bent into a tube-like form, and the edges joined by soldering.
By my method of making ornamental tubes, one part of the tube may be
impressed with one pattern, and the other part left plain, or impressed with
another pattern.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Hatton in the Great Seal Patent Office on the
1st December 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
Hatton, of Birmingham, in the County of Warwick, Metallic Bedstead
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourth day of June, in the year of our Lord One
thousand eight hundred and fifty-six, in the nineteenth year of Her reign,
did, for Herself, Ier heirs and successors, give and grant unto me, the said
Edward Hatton, Her special licence that I, the said Edward Hatton, my
executors, administrators, and assigns, or such others as I, the said Edward
Hatton, 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 MANU-
FACTURE OF PLAIN AND ORNAMENTAL METALLIC TUBES," upon the condition
(amongst others) that I, the said Edward Hatton, my executors or ad-
ministrators, 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 Edward Hatton, 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 of the methods herein-after described, and represented

page_text: in the accompanying Drawing, of manufacturing plain and ornamental metallic
tubes. Figure 1 represents in side elevation, and Figure 2 in transverse sec-
tion, one of the machines by which I carry my Invention into effect. a, b, are
rolls, the surfaces of which have been engraved or fashioned so as to give the
required flute, twist, or ornament to the sheet of metal passed between them.
The ornament is convex on one of the rolls, and concave on the other, as
represented. The upper roll a is pressed upon the lower roll 6 by means of a
weight c hung upon the axis of the roll a by links d, d. Instead of the weight
c, springs may be employed in order to press the rolls a, b, together; e is a
roll which causes the sheet of metal, after it has passed from tho rolls a, b,
to turn up or bend into a tube-like form. The said roll e may be raised or
lowered by the winches and screws e', so as to roll up the sheet of metal into
a cylindrical form of greater or less diameter. The rolls are geared together
as represented, and may be driven by a winch attached to the axis of one of
the said rolls. The. edges of the bent and ornamented plate of metal may be
joined by soldering, so as to complete the tube.
Figure 3 represents in side elevation, and Figure 4 in end view, another
machine, by which I carry my Invention into effect. Instead of using two
rolls as in the machine Figures 1 and 2, I employ a mandril f, jointed to the
table g at h. On the said table ga die is placed, the ornament in which
corresponds to that on the mandril f.
When the plate of metal to be formed into a tube is placed upon the table
g, and the mandrilf brought down by means of the handle i, the said plate of
metal is forced by the mandril f into the die on the table g. By lifting the
lever i, and moving the plate of metal through a proper distance across the
table, and again bringing down the mandril f, another portion of the sheet of
metal is ornamented, and the whole sheet of metal thus ornamented may be
bent into a tube-like form, and the edges joined by soldering. I prefer to
place several dies on the same table g, for the purpose of making tubes of
different sizes, as indicated at k, Figure 4.
I prefer to heat the skolp or sheet of metal to be made into a tube before
subjecting it to the action of my machines, but I do not limit myself to the
use of heated skelps of metal. By my method of making ornamental tubes,
one part of the tube may be impressed with one pattern and the other parts
left plain or impressed with another pattern.
Although I have only described my machines as constructed for the manu-
facture of ornamental tubes, yet the said machines may be used for the
manufacture of plain or unornamented tubes by using plain rolls in place of the

page_text: ornamental rolls a, b, Figures 1 and 2, and a plain mandril and dio in place
of the ornamental mandril f, Figure 3, and the corresponding die on the bed
g. Figures 3 and 4.
When I wish to manufacture taper tubes, I make the rolls a, b, Figures 1
and 2 taper, or I make the mandril fand die upon the bed g, Figures 3 and 4,
taper; but when I wish to make cylindrical tubes or tubes of uniform
diameter, I make the said parts cylindrical.
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 and represented, as the same
may be varied without departing from the nature of my said Invention; but
I claim as my Invention, the improvements in the manufacture of plain and
ornamental metallic tubes herein described, and illustrated in the accompanying
Drawing, that is to say, manufacturing plain and ornamental metallic tubes
by means of machines constructed as herein-before described and illustrated
in the accompanying Drawing.
In witness whereof, I, the said Edward Hatton, have hereunto set my
band and scal, this Twenty-eighth day of November, in the year of
our Lord One thousand eight hundred and fifty-six.
Witness,
GEORGE SHAW.
EDWARD HATTON. (L.S.)