US85564A - Improvement in hot-air furnaces - Google Patents

Description

'air furnace, halfin front elevation,

ttawa gluten r WWW b IMPROVEMENT IN HOT-AIR FURNACES.

The Schedule referred. to in these Letters Patent and making part of the same.

To all whom it may concern Beit known that I, Tnnononn E. Conn in the county of Miami, and in the Stateof invented new and useful Improvements in Heating- Furnaces; and I do hereby that the following is a fill], clear, and exact description thereof, reference being had to the accompanying drawings, which make part of this specification, and in which v Figure'l represents a view of my improved warms, of Troy, Ohio, have at the line :eaz-of fig. 2, and

Figure 2, a vertical longitudinal section of at the line y'y of fig; 1.' i

. Theobject of my invention is to providea convenient furnace for heating buildings, apartments, 860., by means of warm air, which shall be simple and economical in its construction, and present a large amount of heating-surface within a comparatively small space, as well as utilize, in 'an'increased degree, the calorific power of the fuel; to which ends,

My improvements consist in a series of horizontal heating-pipes, arranged within a suitable chamber, and connected with a fire-chamber at the lower part thereof, in such manner that after an ascending draught has-been maintained, and the products of combustion reached the upper pipe of the series, theirdirection may be changed, and they caused to pass downwards and through other pipes, for the purpose of fully utilizing their calorific power before they are allowed to escape into the chimney.

In the accompanying drawings, which show a convenient arrangement of parts for carrying out the ob- ,iects of my invention, my fin-nace is represented as adapted to the use of wood fuel, but by substituting a-vertical fire-chamber, provided with a suitable grate, for the horizontal one shown, .mineral fuel can be burned with equal facility.

A'represents a chamber, of brick, in which the furthe same,

. nace is set, the air to be heated being admitted through an opening, a, in its bottom, and access to its interior afforded by a door, A, at one side.

B represents the 'fire-chamber, which is a cylinder of sheet-metal, of suitable thickness, elevated a short distance above the bottom of the chamber A, upon a bridge or support, a, so as to radiate the heat in all directions, and provided with a door, B, for the introduction of the fuel, to which is attached a register, I), for regulating the supplyof air thereto.

The fire-chamber B communicates, through the'connections 11' near its rear end, with the horizontal heatingepipes O G, which extend longitudinally through the chamber A, passing through its front wall.

These pipes communicate, through the connections C, with similar pipes D D arranged above them, and these, in turn, by means of the connections (I, with a pipe, E, which is the most elevated of the series, and to whichthe chimney G is attached.

Below the pipe E is placed a similar pipe, F, which communicates with E, through the connections 0 and f.

and halfin section,

tached to the chamber A, for the purpose of conveying the heated air to the rooms to be warmed;

. The operation of my furnace is as follows:

Fire being made in the chamber B, the escaping smoke and gases pass through the connections 7) into the pipes G O, thence through the'connections 0, into the pipes D D, and thence through the connections d,

into thepipe E, from which, when the damper E is open, they pass directly-into the chimney G. After the fuel is thoroughly ignited, it becomes desirable to obtain from it the best possible calorific eifect, and to this end the damper E is turned, by means of its rod, E, into the position shown in fig. 2, when the products of combustiomhaving no other outlet, pass downwards through the connection 0, into the pipe E, thence upward, through the connection), into the pipe E, on the opposite side of thedamper, and escape into the chimney G.

The arrows in th currents. p

The heating-pipes are furnished with caps or covers 0' d. cf, by removing which they can be readily cleaned, and as the connections stand at a comparatively slight e figures show the direction of the I angle, there is no-tendency of dust or soot to accumulate within them.

An additional pipe may be connected to F if thought proper, for the purpose of increasing heating-surface.

From the construction of my furnace it will be seen that it presents within a small compass a large amount of surface for the radiation of heat, and the ability to establish a downward draught at pleasure increases its calorific efl'ect and economizes fuel. v

j Having thus fully described my invention,

What I claim therein asnew, and desire to secure by Letters Patent, is-

1. The horizontal heating-pipes O O, D D, and E, in combination with the connections I) c (l, and firechamherB, the whole arranged and operating substantially as and for the puipose described.

2. The heating-pipe F and connections cf, in combination with the pipe E, damper E, connection d,

and chimney G, as set forth.

3. A warm-air furnace, in which'a downward draught is imparted to the products of combustion alter they have reached the uppermost heatingpipe, by means of the pipe F, connections 0 and f, pipe E, and damper E, substantially as described.

The above specification signed by me, this 27th day of October, 1868. p F

THEODORE E. COLES. Witnesses:

DAVIS BAIRD, B. H. Pensons.

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