A NEW METHOD OF AND MACHINERY FOP CURVING FLANGED BOILER AND OTHER METAL PLATES
Year: 1864

page_text: ·LETTERS PATENT to George Alton, of the Town and County of Derby,
Boiler Maker, for the Invention of "A NEW METHOD OF AND MACHINERY
FOP CURVING FLANGED BOILER AND OTHER METAL PLATES."
Sealed the 23rd June 1865, and dated the 27th December 1864.
PROVISIONAL SPECIFICATION left by the said George Alton at the
Office of the Commissioners of Patents, with his Petition, on the 27th
December 1864.
I, GEORGE ALTON, of the Town and County of Derby, Boiler Maker, do
hereby declare the nature of the said Invention for "A NEW METHOD OF AND
MACHINERY FOR CURVING FLANGED BOILER AND OTHER METAL PLATES," to be
as follows:
The main object of my present Invention is to bend boiler plates after they
have been flanged to the curve necessary for the body of the boiler to be
made. My Invention is applicable to bending plates after they have been
flanged to any curve, and for any purpose required.
My Invention consists in beating plates after having been flanged by
machinery according to another Invention, for which I have applied for
Letters Patent, of even date herewith, or after having been flanged by hand,
and in passing such flanged plate through rolls in the upper or lower of which
I form a channel or annular groove for the flange on the plate to rest in.. In
order to suit different thicknesses of flanges I employ collars or "gluts" on the
rolls, by the addition or removal of which the extent or size of the groove may
be regulated. In order to use the rolls as ordinary rolls when not required

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said George Alton in the Great Seal Patent Office on the
27th June 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
ALTON, of the Town and County of Derby, Boiler Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of December, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-eighth year
of Her reign, did, for Herself, Her heirs and successors, givo and grant
'unto me, the said George Alton, Her special licence that I, the said George
Alton, my executors, administrators, and assigns, or such others as I, the
said George Alton, 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. "A NEW
METHOD OF AND MACHINERY FOR CURVING FLANGED BOILER AND OTHER METAL
PLATES," upon the condition (amongst others) that I, the said George Alton,
my executors or administrators, by an instrument in writing under my, or
.their, or one of their hands and scals, should particularly describe and ascer
tain the nature of the said Invention, and in what mauner 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 George Alton, 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 thereof, reference being had to the Drawings hereunto annexed,
that is to say:-
The main object of my present Invention is to bend boiler plates after they
have been flanged to the curve necessary for the body of the boiler to be
made. My Invention is applicable to bending plates after they have been
flanged to any curve, and for any purpose required.
My Invention consists in heating plates after having been flanged by
machinery, according to another Invention, for which I have obtained Letters

page_text: "
Patent of even date herewith, or after having been flanged by hand, and in
passing such flange plate through rolls, in the upper or lower of which I form
a channel or annular groove for the flange on the plate to rest in. In order
to suit different thicknesses of flanges, I employ collars or
" gluts on the
rolls, by the addition or removal or sliding of which the extent or size of the
groove may be regulated. In order to use the rolls as ordinary rolls when
not required for flanged plates I fill up the groove with segmental blocks so
as to give the rolls an even surface throughout.
Figure 1 of the accompanying Drawings is an end elevation, and Figure 2
a plan of a machine for curving flanged plates constructed according to my
Invention; Figure 3 is a view of the right side with the driving gear
removed; Figure 4 is a view of the left side, and Figure 5 a section taken
through the rolls; Figure 6 is a longitudinal section, and Figure 7 an end
view of one of the rolls shewing the sliding glut or collar..
A, A¹, is the frame carrying the rolls. The part A¹ of the frame is capable
of being removed to allow the plate to be taken out when bent to a complete
circle. B, B, B¹, are the rolls; the upper roll B¹ can be raised or lowered by
gearing C, according to the radius of the curve to be imparted to the plate;
D, D, are sliding gluts or collars on one end of each roll B, B, B', leaving a
channel or annular groove E at the end of the roll for the flange on the plate
to rest in. The extent or size of the grooves E may be regulated to suit
different thicknesses of flanges by causing the collars D to slide towards or
from the end of the rolls by means of nuts F. The nuts F are each formed
with an annular groove, as seen in Figure 6, to receive two semi-annular
plates G, which are secured by screws to the collars D, and thereby hold the
nuts to them; H, H, is the driving gear.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim, the method of
and machinery for curving flanged boiler and other metal plates, herein-before
described.
In witness whereof, I, the said George Alton, have hereunto set my
hand and seal, this Twenty-fourth day of June, in the year of our
GEO. ALTON. (L.S.)