IMPROVEMENTS IN THE CONSTRUCTION OF BOILERS OF STEAM ENGINES
Year: 1862

page_text: Marion, in the United States of America, and at present of No. 481,
New Oxford Street, in the County of Middlesex, Engineer, for the
Invention, of "IMPROVEMENTS IN THE CONSTRUCTION OF BOILERS OF STEAM
ENGINES." Partly a communication from abroad by Albert Ellis Redstone,
of Indianapolis, County of Marion, United States of America.
Sex, Engineer, for
Invention, of "IMPROVEMENTS IN THE CONSTRUCTION OF BOILERS OF STEAM
ENGINES." Partly a communication from abroad by Albert Ellis Redstone,
of Indianapolis, County of Marion, United States of America.
Sealed the 16th December 1862, and dated the 21st June 1862.
PROVISIONAL SPECIFICATION left by the said John Hooper Redstone at
the Office of the Commissioners of Patents, with his Petition, on the
21st June 1862.
I, JOHN HOOPER REDSTONE, of Indianapolis, County of Marion, in the
United States of America, and at present of No. 481, New Oxford Street, in
the County of Middlesex, Engineer, do hereby, declare the nature of the said
Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF BOILERS OF STEAM
ENGINES," to be as follows:-
.
The boiler is composed, of flues or,tubes which hold the water to be heated
in connection with the flue sheet, which is cored in casting, so as to form a
series of tubes, ranging vertically, and covering the whole face, of the flue sheet
or boiler head, or nearly so. In these tubes in the flue sheet are perforations
on the inside fitting the, size, of the flue to allow it to be rivetted, so as to

page_text: make a steam joint. The tubes pass horizontally from one flue sheet or head
to the other, and are rivetted or secured in the same manner as other flues or
tubes in boilers. Outside and opposite the end of the tube or flue there is a
perforation large enough to admit the tube or flue when one is to be replaced,
as well as for riveting the flue upon the inside perpendicular passage or tube]
forming part of the flue sheet. Across the top of the flue sheet, and con-
necting all the tops of the upright flues in the flue sheets, is a tube of increased
capacity, designed to connect the flues, and serve as part of the steam space.
These flue sheets are constructed with grooves and fillets fitting the sides and
top of their framework, to allow the expansion and contraction of the flues
without straining them or loosening their connections with the flue sheets or
heads. The whole framework is bolted together in the same manner as a
stove, the sides having a plate under the flue sheets to form the fire-box. The
top is provided with a steam chest or space as follows:-Projections similar to
tubes lying upon the lower surface and leading to the centre of the plate
(where there is a small chamber cast in the plate) are cored, so as to form
passages for the steam from the horizontal connecting tubes which aro
arranged across the top of the upright tubes in the flue sheets, and by this
arrangement the flues and all the passages are accessible by simply removing
the plug which closes the opening at the end of the flues or tubes.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Hooper Redstone in the Great Seal Patent Office on
the 20th December 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HOOPER REDSTONE, of Indianapolis, County of Marion, in the United States
of America, and at present of 481, New Oxford Street, in the County of
Middlesex, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of June, 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 John Hooper Redstone, Her special licence that I, the said John Hooper
Redstone, my executors, administrators, and assigns, or such others as I, the said
John Hooper Redstone, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times thereafter

page_text: during the term therein expressed, should and lawfully might make, use, exer-
cise, and vend, within the United Kingdom of Great Britain and Ireland
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
THE CONSTRUCTION OF BOLLERS OF STEAM ENGINES," the result partly of a com-
munication to me from abroad by Albert Ellis Redstone, of Indianapolis,
County of Marion, United States of America, and partly of invention, and
discovery made by me; upon the condition (amongst others), that I, the said
John Hooper Redstone, 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 Hooper Redstone; 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: -
I
:
The boiler is composed of flues or tubes which hold the water to be heated
in connection with the flue sheet, which is cored in casting, so as to form a
series of tubes ranging vertically, and covering the whole face of the flue sheet
or boiler head, or nearly so. In these tubes in the flue sheet are perforations
on the inside fitting the size of the flue to allow it to be rivetted, so, as to make
a steam joint. The tubes: pass horizontally from one sheet or head to the
other, and are rivetted or secured in the same manner as other flues or tubes
in boilers: Outside and opposite the end of the tube or flue there is a per-
foration large enough to admit the tube or flue when one is to be replaced, as
well as for rivetting the flue upon the inside perpendicular passage or tube
forming part of the flue sheet. Across the top of the flue sheet, and con-
necting all the tops of the upright flues in the flue sheets, is a tube of increased
capacity designed to connect the flues, and serve as part of the steam space.
These flue sheets are constructed with grooves and fillets fitting the sides, and
top of their framework; to allow the expansion and contraction of the flues
without straining them or loosening their connections with the flue sheets or
heads. The whole framework is bolted together in the same manner as a
stove, the sides having a plate under the flue sheets to form the fire-box. The
top is provided with a steam chest or space as follows:-Projections, similar
to tubes lying upon the lower surface,, and leading to the centre of the plate
(where there is a small chamber cast in the plate) are cored so as to forin

page_text: passages for the steam from the horizontal connecting tubes which are
árranged across the top of the upright tubes in the flue sheets, and by this
arrangement the flues and all the passages are accessible by simply removing
the plug which closes the opening at the end of the flues or tubes.
In order that my Intention be better understood, I will now proceed to
describe it in conjunction with the accompanying Drawing, wherein Fig. 1 is a
plan of my patent boiler, partially in section, and with the top part removed;
Fig. 2, a longitudinal elevation, partially in section; and Fig. 3, a front
elevation of boiler.
My system of boiler consists, mainly, in the use of cast or wrought-iron
plates provided internally with passages for the circulation of steam and water,
and united in the direction of its length by a series of pipes in which the
water circulates. The boiler represented in the Drawing is formed of four
vertical plates or sides, and a horizontal plate serving as a steam chest, united
in such a manner that the water and steam can circulate freely from one plate
to another, the front and back plates being connected by a series of water
pipes the fire is built on a grate immediately under the said tubes, causing
evaporation to take place on the internal surface of the vertical plates, as
well from the tubes, and maintaining the steam in the upper horizontal plate
at such a teinperature best calculated for its ultimate utility, the smoke or
other products of combustion passing off through an aperture in the said
ipper plate.
a is the front cast or wrought-iron plate; b, the back. plate; c, c; the pipes
connecting the said plates; d and the two side plates, and the top plate or
cover; 9, 9, are vertical passages in the vertical plates, and h, h, horizontal
passages in the upper and lower parts of such plates, serving to connect the
said vertical passages; r, r, are plugs screwed in the metal plates, closing
apertures, through which tools can be passed for cleansing the pipes and
passages, as well as for the passage of the pipes as regards those plugs which
are situated opposite to the said pipes; k, k, are passages bolted steam-tight
against the plates à; d, and e, serving to form a water communication between
the three said plates, the connection of the fourth vertical plate 6 to the three
former being effected by the tubes; 1, 1, are passages bolted steam-tight
against the same plates a, d, and e, serving as steam connexions from d and e
to a, whilst m is a steam passage connecting the latter plate to the upper
plate f, which serves as a reservoir or chest; in this manner the steam
generated in the three plates a, a, and e, are collected in the said top plate,
whilst the passage in serves to answer the same purpose with regard to the

page_text: plate b, the steam thus admitted in the top plate passes through the passages
o, o, into the steam chest p, from whence it issues through the pipe q; s is the
passage for the products of combustion..
In witness whereof, I, the said John Hooper Redstone, have hereunto
set my hand and seal, this Twentieth day of December, in the year of
our Lord One thousand eight hundred and sixty-two.
JOHN H. REDSTONE. (L.s.)