Improvements in Steam Boilers.
Year: 1892

page_text: Date of Application, 5th Sept., 1892-Accepted, 20th May, 1893
COMPLETE STMUIFICATION.
Improvements in Steam Boilers.
We, HERBERT FLETCHER COOK, of 100 Commonwealth Avenue Cleveland,
in the County of Cuyahoga and State of Ohio, United States of America,
Engineer, and LUCIEN WARNER BINGHAM, 1198 East Madison Avenue CHARLES
LEE DOUGLASS, 177 Kennard Street and CHARLES BELA SQUIRE 113 Second
Avenue, Insurance Agents, all of Cleveland in the County of Cuyahoga and State
of Ohio, and JAMES HENRY KING, Manufacturer of Painesville, Lake County
and State of Ohio, CHARLES NELSON SCHIMICK, of Leetonia, Columbiana County,
Ohio, Manufacturer, SCOTT EUGENE WELKER, of Leetonia, Columbiana
County, Ohio, Manufacturer, do hereby declare the nature of this invention, and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This invention relates to steam boilers and consists in the new constructions and
combinations as hereinafter described.
In the accompanying drawing-
Figure 1 is a vertical section of a steam boiler, embodying the improvements.
Figure 2 is a cross section of the same on line za of Figure 1.
A represents a circular brick or metal work casing of greater diameter at the
base portion and tapering to a less diameter from a point just above the fuel
feed openings a, two or more of which may be provided around said base, the
part of said casing above the taper standing in a straight perpendicular column,
and surmounted with a dome shaped cap A, having a neck to support a smoke-
stack. Within this casing is contained a boiler of an improved construction.
B represents a cylindrical chamber standing on end in the center of said base A
and of a height nearly to the top of said fuel feed openings. CC are grate
bars surrounding said chamber on a level with the bottom of the fuel feed
openings, beneath which is the ash-pit, surrounding said chamber B, provided
with openings and doors. D D are tubes fixed in the top plate of the chamber B
surrounding a preferably larger central tube D². É is a second cylindrical
chamber located in the upper part of the casing A, supported on the tops of
the tubes D and D. This chamber is of greater height than the lower one, and
comprises the steam done. To the top of this chamber is affixed a pipe F, for
conveying off steam. G is a man-hole pipe, extending through the wall of the
H is a
casing for the convenience of access to the chamber for cleaning etc.
man-hole in the lower chamber B for like purposes. I is a pipe having a water
column i connecting chambers B and E on the outside of the casing, and is provided
with a water gauge J. K is a feed waterpipe, which may lead into the upper
chamber, having its discharge end down in the pipe D³ this would enhance the
downward current in the central tube.
Instead of this, such a pipe might enter the lower chamber.
Upon the inner surface of the casing A at suitable points midway between the
two chambers, may be provided deflecting flanges for diverting the upward
current of heat, and flames into the, midst of pipes D, for enhancing the effect of
the heat upon the boiler.
The working and advantages of this construction and arrangement for boilers is
as follows:-
The furnace fires or heat are around the upper part of chamber B and around
the lower ends of tubes D and are directed into the midst of the said tubes by the
deflector b, thence they pass upward and around the upper chamber E, so that the
steam becomes superheated therein.
The circulation of water is upward in the tubes D and downward in the
1D 037

page_text: center tube D, as indicated by the arrows, thus the circulation is perfectly free
and unobstructed, the water being the coolest in the central tube as a downward
flow, whilst that in the outer tubes, being the hottest, rises, and thereby the
circulation is constantly maintained. All sediment in the water is deposited in the
bottom of chamber B and there the water below the level of the grate bars is
coolest and undisturbed, so that the sediment can easily settle. The tubes being
perpendicular there is no liability to lodgment of sediment.
The ends of the tubes being within the water space are not exposed to the fire
and are therefore not liable to be burned out.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
In a tubular steam boiler the combination of a boiler consisting of a chamber B,
located partly below the fire grate of a furnace, an upper chamber E, the upper
tube sheet of chamber B and the lower tube sheet of chamber E, connected by
-central large tube D2, and by surrounding vertical water-tubes D, D, in which the
water bas free circulation upward in tubes D and downward in center tube D², a
circular enclosing casing A, having the walls reduced in diameter above the fire
grates and deflecting rims or ridges on the inner surface in the space between
the two chainbers B and E of the boiler, and covered by a suitable crown leading
into a smoke-stack; constructed and arranged substantially as and for the purpose
-set forth.
Dated this 5th day of September 1892.
HERBERT FLETCHER COOK.
LUCIEN WARNER BINGHAM.
CHAS. LEE DOUGLASS.
CHAS. BELA SQUIRE.
JAMES HENRY KING.
CHARLES NELSON SCHMICK.
SCOTT EUGENE WELKER.
W. P. Thompson & Boult,
Agents for the Applicants.