Improvements in Furnaces.
Year: 1893

page_text: Date of Application, 28th July, 1893-Accepted, 9th Sept., 1893
COMPLETE SPECIFICATION.
Improvements in Furnaces.
I, GEORGE RANDAULPH SCATES, of Knoxville, in the County of Knox, and
State of Tennessee, United States of America, Gentleman, 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 improvements in furnaces, the objects in view being to
provide a furnace, which is especially adapted for domestic purposes, and which
shall possess advantages in the matter of extensive heating and radiating surface,
as compared with the grate surface, and in the simplicity, durability and strength
of construction, in the accessibility of the flues from the outside of the masonry
enclosure, and in the ease and facility with which the flues and other parts may be
relieved from accumulations of soot.
Further objects and advantages of the invention will appear hereinafter in the
description and the novel features thereof will be particularly pointed out in the
appended claims.
In the drawings :-
Figure 1 is a front view of a furnace embodying my improvements.
Figure 2 is a central vertical longitudinal section of the same.
Figure 3 is a vertical longitudinal section taken through one pair of the side
radiators or flues.
Figure 4 is a vertical transverse section taken through the fire-box, combustion-
chamber and side radiators or flues.
Figure 5 is a transverse vertical section taken through the transversely-disposed
drums at the rear of the combustion-chamber..
Figure 6 is a detail view of one of the caps or closures for the outlets.
In carrying out the invention, I employ enclosing walls A, including the front
wall a, the rear or back wall a', and side walls a, a bottom a³, and a top wall or
roof a, all of which are formed of brick or masonry, in the usual well-known
manner.
B designates the fire-box or furnace proper, which is enclosed within the walls A,
and arranged at or near the front wall thereof said fire-box being formed of metal
and being protected at its front and rear sides by fire brick which is held in place
by radially disposed webs b, as shown in Fig. 2. The fire-box or combustion-
chamber is provided with an arched hood 6' vertical upper sides, convergent lower
sides, a pivoted grate, a subjacent ash-pit, with the accompanying fuel-door, ash-
door, fire-door, and means for operating the same.
The front plate or casting C, is separated slightly from the front end of the
combustion-chamber, and is set flush with the front enclosing wall, and connected
to this front plate or casting at opposite sides and close to the top, are the
rectangular soot-boxes D, D, provided with inspection-doors d, d, respectively, and
below the latter on the planes of the bottoms of the boxes, with the cleaning
ports d', d', having hinged closures d², d².
In rear of the combustion-chamber are arranged the transversely-disposed
heating-drums E and F, the lower and larger drum E, communicating by means of
short connecting flues e, e, with the combustion-chamber, and the upper drum F,
communicating with the smoke-flue G. At opposite ends of these drums close to
their bottoms are formed outlets e', e¹, and f¹, f¹, as shown clearly in the sectional
view, Fig. 5, said outlets being normally closed by the caps or closures e² and f
one of which is shown in detail in Fig. 6.
Extending from the lower drum E, to the lower end of the soot-boxes D, D, are
the approximately horizontal radiators or side flues H, H, the front ends of which

page_text: are opposite the doors d, d, in the fronts of said boxes. These radiators are inclined
upward, slightly toward their front ends.
Extending from the upper ends of said soot-boxes to the extremities of the upper
drum F, are the upwardly-inclined flues or radiators I, I, the front ends of these
also being opposite the doors of the soot-boxes.
Hence, by opening the doors in the front sides of the soot-boxes, the entire
lengths of the side flues or radiators may be viewed, and by means of a long
handled scraper cleaned, all of the soot being drawn down into the soot-boxes from
whence it may be removed through the cleaning ports, above described.
The drums are similarly cleaned by removing the caps or closures which cover
their terminal outlets and scraping the soot therethrough.
The other parts of the device necessary for the supply of fresh air and the
delivery of the heated air to the points of utilization, etc., form no part of the
present invention.
It will be noted in connection with this invention that each flue, drum, radiator, etc.,
is provided with a terminal outlet, through which the entire interior of said part or
member may be viewed, each outlet being provided with a suitable closure to be
used when the outlets are not being utilized.
Having now particularly described and ascertained the nature of my said inven-
Lion and in what manner the same is to be performed, I declare that what I
claim is
1. In combination with a heating furnace, the communicating flues, drums,
radiators, etc., provided with terminal outlets having caps or closures, substantially
as specified.
2. In combination with a heating furnace, the side heating flues or radiators
communicating at their front ends with common boxes having doors opposite the
front ends of said flues or radiators, whereby the accumulations in the latter may
be collected in said boxes, substantially as specified.
3. In a furnace, the combination with the fire-box, heating drums, and connecting
flues between the fire-box and one of the drums, of the side-flues or radiators
forming the connection between said drums, and the soot-boxes interposed at
intermediate points of said flues, and provided with doors arranged opposite
and in alignment with the members or parts of said flues, substantially as specified.
4. In a furnace, the combination with the fire-box and heating drums, one of
which communicates with the fire-box and the other of which communicates with
the smoke-flue, of side flues or radiators connecting the said drums, and soot-boxes
arranged at intermediate points of said flues or radiators and provided with doors
opposite and in alignment with the parts or members of the Blues, substantially as
specified.
5. In a furnace, the combination with the fire-box, the parallel, transversely-
disposed drums, one of which communicates with the fire-box and the other with
the smoke-flue, and approximately parallel side-flues or radiators arranged in pairs,
one member of each pair communicating with one of said drums, and arranged at
their front ends in proximity, of the soot-boxes forming the connection between the
front ends of the adjacent members of each pair and provided with doors arranged
opposite and in alignment with the members of each pair of flues, substantially as
specified.
6. In a furnace, the: combination with the fire-box of the heating drums disposed
horizontally in the enclosing wall of the furnace, and provided with terminal outlets
provided with caps or closures, and the side-flues or radiators connecting said
drums, substantially as specified.
Dated this 28th day of July 1892
W. P. THOMPSON & BOULT,
Agents for the Applicant.