IMPROVE- MENTS IN STEAM-BOILERS
Year: 1881

page_text: LETTERS PATENT to James Tinker, James Shenton, George Tinker, and
Richard Shenton, of the Firm of Tinker, Shenton, and Company, of Hyde,
near Manchester, in the County of Chester, for an Invention of "IMPROVE-
MENTS IN STEAM-BOILERS,"
PROVISIONAL SPECIFICATION left by the said James Tinker, James Shenton,
George Tinker, and Richard Shenton, at the Office of the Commissioners of
Patents on the 21st October 1881.
JAMES TINKER, JAMES SHENTON, GEORGE TINKER, and RICHARD SHENTON, of
the Firm of Tinker, Shenton, & Co., of Hyde, near Manchester, in the County
of Chester. "IMPROVEMENTS IN STEAM BOILERS,"
Our Invention relates to a vertical steam boiler constructed upon the type of
marine multitubular boilers, that is to say, with the furnace beneath the tubes, and
a combustion chamber at one end and a smoke box at the other end leading to the
chimney, the products of combustion being conducted from the furnace into the
combustion chamber, then through the tubes to the smoke box, and thence to the
chimney.
According to our Invention we combine with the parts of the boiler thus
arranged a transverse flue, arranged beneath the horizontal tubes of the boiler and
provided with cross tubes for the circulation of the water, the said flue leading
from the furnace to the combustion chamber. It will thus be seen that we
combine in a vertical boiler the advantages of a multitubular marine boiler and a
Cornish boiler; under this arrangement the products of combustion are caused to
pass from one end of the boiler through an uptake into the transverse flue and
along the same to the combustion chamber, and then return through the horizontal
tubes to the smoke box leading to the chimney, and which is at that end of the
boiler from which the products of combustion proceeded.
Suitable doors may be provided for affording access to the tubes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Tinker, James Shenton, George Tinker, and Richard Shenton,
in the Great Seal Patent Office on the 15th April 1882.
JAMES TINKER, JAMES SHENTON, GEORGE TINKER, and RICHARD SHENTON, of
the Firm of Tinker, Shenton, and Company, of Hyde, near Manchester, in the
County of Chester. "IMPROVEMENTS IN STEAM BOILERS."
Our Invention relates to a vertical steam boiler constructed upon the type of
marine multitubular boilers, that is to say, with the furnace beneath the tubes, and
a combustion chamber at one end or side, and a smoke box at the other end or
side leading to the chimney, the products of combustion being conducted from the
furnace into the combustion chamber, then through the tubes to the smoke box,
and thence to the chimney.
According to our Invention we combine with the parts of the boiler thus
arranged a transverse flue, arranged beneath the horizontal tubes of the boiler and
provided with cross tubes for the circulation of the water, the said flue leading
from the furnace to the combustion chamber. It will thus be seen that we
combine in a vertical boiler the advantages of a multitubular marine boiler and a
Cornish boiler; under this arrangement the products of combustion are caused to
pass from one end of the boiler through an uptake into the transverse flue, and
along the same to the combustion chamber, and then return through the horizontal
tubes to the smoke box leading to the chimney, which is at that end of the boiler
from which the products of combustion proceeded.
Suitable doors may be provided for affording access to the tubes.
And in order that our said Invention may be fully understood, we will now
proceed more particularly to describe the same, and for that purpose shall refer to
the several Figures on the annexed Sheet of Drawings, the same letters of reference
indicating corresponding parts in all the Figures.
Figures 1 and 2 are vertical sections taken respectively at right angles to cach
other, and Figure 3 is a horizontal section taken on the line 1-2, Figure 2, of a
boiler constructed or arranged according to our Invention. At the lower part of
the main body or shell of the boiler is the furnace C, having a door at A and bars B
which may be of the ordinary construction. Above the said furnace and carried
transversely across the interior of the boiler is the flue E communicating with the
said furnace by the uptake D. The said flue E is provided with cross tubes F
extending from side to side of the same and opening into the water space of the boiler.
The said flue opens at the end opposite to that at which the uptake D is situated into
the combustion chamber G, which is formed on or attached to the side of the boiler,
as shewn.
Above the said flue E and passing from side to side of the boiler are
tubes H, the said tubes being fixed at either end to tube plates affixed to or forming
part of the sides of the boiler, the said tubes opening at one end into the upper
part of the combustion chamber G, and at the other end into the smoke box I,
which is formed on or affixed to the side of the boiler opposite to that at which
the combustion chamber G is situated. In communication with the said smoke
box I is the chimney J. The combustion chamber is or may be formed with a
door g at its outward side; similar doors are or may be provided at the uptake
end of the flue E, as shewn at e, and at the outward side of the smoke box I, as
shewn at i. The products of combustion from the furnace pass by the uptake D
through the flue E and around the tubes F, thence into the combustion chamber G,
and therefrom through the tubes H into the smoke box I, from whence they pass
to the chimney J, all as indicated by the arrows in Figure 1 of the Drawings.

page_text: By this arrangement a large amount of heating surface is obtained, as is also a
through circulation of the water in the boiler.
By opening the doors e, g, and i, the flue E, and tubes F, and the tubes H can
be all cleaned with facility.
Having now described and particularly ascertained the nature of our said
Invention, and the manner in which the same is or may be used or carried into
effect, we would observe in conclusion that what we consider to be novel and
original, and therefore claim as the Invention secured to us by the hereinbefore
in part recited Letters Patent is,―
First. In steam boilers of the type hereinbefore referred to, the combination of a
flue E having circulating tubes F with the tubes H, and the combustion chamber G
giving communication between them, substantially as hereinbefore described with
reference to the accompanying Drawings.
Second. The arrangement and combination of parts constituting the steam
boiler, hereinbefore described and illustrated in the accompanying Drawings.
In witness whereof, I, the said James Shenton, for myself and the said
James Tinker, George Tinker, and Richard Shenton, have to this our
Specification set my hand and seal, this Fourteenth day of April, One
thousand eight hundred and eighty-two.
JAMES SHENTON. (L.S.)