IMPROVEMENTS IN STEAM GENERATORS
Year: 1885

page_text: WO THOMAS TOWARD WILLIAM TOWARD and JOHN MEEK all of the Firm of
T. Toward and Company of St Lawrence Iron Works in the City and County of
Newcastle upon Tyne Engineers do hereby declare the nature of said Invention for
"IMPROVEMENTS IN STEAM GENERATORS " to be as follows:-
Our Invention has for its object to provide a Steam Generator which is simple
in construction and presents a large heating surface relatively to the space which
it occupies but without any necessity for objectionable heating surface above the
water line whilst access to the various parts for cleaning or repairs is readily
obtained.
According to our Invention as applied to a vertical Boiler the Boiler is preferably
Cylindrical and consists vertically of two parts a lower part containing the fire box
fire door and tubes and an upper part the two parts being connected by an inside
or outside water tube or tubes. The upper part serves as a steam receiver the
water level extending up into it. The fire box may be made as is usual in vertical
Boilers but is preferably much shorter-In the space between the top of the fire
box and the top of the lower part of the Boiler are fire tubes which may be exactly
vertical or which may be slightly inclined according to the amount of curvature
which is given to the top plate of the fire box and to the top plate of the lower
part of the Boiler. These tubes may be arranged in circles round the centre water
tube if one centre tube be used between the upper and lower parts of the boiler-
The said fire tubes discharge the hot gases into the space which extends from the
lower to the upper part of the Boiler This space is enclosed so as to form a flue
by means of a casing (preferably removeable) fitted round the circumferences of the
two parts. The funnel takes its rise from any suitable part of this casing or
through tubes in the steam space but may be led vertically or otherwise-A very
extended heating surface is provided in a boiler arranged as described.
This method is also applicable to horizontal Boilers the steam receiver being
placed above the boiler and connected by necks or otherwise.

page_text: We the undersigned THOMAS TOWARD, WILLIAM TOWARD and JOHN MEEK all of
the firm of T. Toward & Co of St. Lawrence Iron Works in the City and County
of Newcastle on Tyne, Engineers, do hereby declare the nature of our invention
for IMPROVEMENTS IN STEAM GENERATORS and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
Our Invention has for its object to provide a Steam Generator, which is simple
in construction, and presents a large heating surface, relatively to the space which
it occupies, but without any necessity, for objectionable heating surface, above the
water line, while access to the various parts, for cleaning or repairs, is readily
obtained.
According to our Invention, as applied to a vertical Boiler, the Boiler is
preferably Cylindrical, and consists vertically of 2 parts, a lower part L, containing
the fire box F, fire door D, and tubes T, and an upper part P, the two parts being
connected by an inside or outside water tube or tubes W W.
The upper part serves as a steam receiver, the water level extending up into it.
A circulating tube G is fixed in the centre of the central water tube to divide the
upward current of hot water produced by the heating surface from the downward
current.
The fire box may be made as is usual in in vertical Boilers, but is preferably
much shorter.
In the space between the top of the fire box, and the top of the lower part of the
Boiler, are fire tubes B, which may be exactly vertical, or which may be slightly
inclined, according to the amount of curvature which is given to the top plate of
the fire box c and to the top plate of the lower part of the Boiler A. These tubes
may be arranged in circles round the centre water tube E, if one centre tube be
used between the upper and lower parts of the Boiler.
The said fire tubes discharge the fire, and heated gasses into the space H which
extends from the lower to the upper part of the Boiler.
This space is enclosed so as to form a flue by means of a casing K (preferably
removable) fitted round the circumferences of the two parts.
The funnel M takes its rise from any suitable part of this casing, or through
tubes O in the steam space and may be vertical or otherwise.
Thus a very extended heating surface is provided, in a Boiler arranged as
described.
This method is also applicable to horizontal Boilers, the steam receiver being
placed above the Boiler and connected by necks or otherwise.
Having now particularly described and ascertained the nature of our inven-
tion, and in what manner, the same is to be performed, we declare that what
'we claim is:
"
First "The improvements in Steam generators for economy in fuel, consisting
in the arrangement, of a large, and effective heating surface, without the necessity

page_text: of any objectionable heating surface, substantially as hereinbefore described, and
illustrated, in the accompanying drawings.
"Second"-The method of connecting the lower and upper part, of the Boiler,
and utilizing the annular space, thus formed, for a smokebox, substantially as, and
for the purpose, herein described, with reference to the accompanying drawings.
Third: The arrangement of uptake flues from the annular space, or smoke box,
to the crown of Boiler, for carrying away the waste gasses, to a central chimney,
substantially as, herein before described, and illustrated in the accompanying
drawings.