US101718A - dunking - Google Patents

Description

.W. B-. DUNNING.

Base Burning Stove fora Steam Heating Boiier.

Patented April 12 1870.

Invenlor if user ffifwa N, PETERS. Piwlo-Uihognphur. Wishingiun. D. c.

steam-drum E by means of pipes 5.

UNITED STATES WILLIAM B. DUNNING, OF GENEVA, NEW YORK.

BASE-BURNING STOVE FOR A STEAM -HEATING BOILER.

Specification forming part of Letters Patent No. [0],?!8. dated April 12, 1870.

To aZZ whom it may concern:

Be it known that I, IVM. B. DUNNING, of Geneva, in the county of Ontario and State of New York, have invented a certain new and useful Steam-Heating Boiler; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which Figure 1 is a vertical central section of my invention. Fig. 2 is a plan view below the dotted line av, Fig. 1. Fig. 3 is a plan view of the fire-grate, and Fig. 4 is a section of a portion of the same. Fig. 5 is a vertical section of a modification of my invention.

My invention relates to an apparatus for heatingbuildings; andit consists, chiefly, in a certain arrangement of a fuel-reservoir within an annular tubular generator.

In the ordinary steam-heating boilers it is necessary to frequently replenish the fuel upon the fire, which operation generally causes the steam to run down, or by the neglect to do it at the proper time steam ceases to be generated. The rents in all the radiators must then be opened to allow the steam as it is again raised to enter and drive out the air-a troublesome process, especially in large buildings. To obviate these difficulties, Iprovide a steam-generator with a fuel-reservoir similar in its action to those in common use in coal stoves.

The reservoir B, Fig. 1, is located centrally within the annular water-chamber A, resting upon the upper edge of the latter by means of suitable lugs, and extending down into the furnace to a proper point above the grate G.

The water-chamber A is provided with vertical fire-tubes a, through which the flame and gases descend into the annular smoke-chamber D, Figs. 1 and 2, formed by surrounding the shell of the boiler with a suitable protecting wall or jacket.

The chamber A communicates with the The drum E is located far enough above the top of the reservoir B to allow easy access to the latter for replenishing the fuel through the door and chute F, and the space thus inclosed within the arch-walls forms a combustionchamber for the smoke and gases on their way to the chimney. The steam-pipe f and return= water pipe f are attached to the steam-drum in the usual manner, together with safety-valve and other necessary appliances. It is. advisable to connect the pipes I) to the drum somewhat above the bottom of the latter, as shown in Fig. 1, whereby the bottom plate is kept constantly covered with the water of conden= sation returning through the pipe f and consequently prevented from being burned by 7 heat from the furnace. The flame and gases take the course indicated by the arrows in Fig. 1, passing between the reservoir and in= terior of the shell A, returning through the flues a, and ascending upon the outside of the shell A to the escape d.

It will be observed that by the above-described arrangement of heating-surfaces I expose both the inner and outer periphery of the shell A to the action of the heat, as well as the lower side of the drum E and the inner surface of the flues a, thus economizing the heat to the greatest extent.

The fuel-reservoir B is covered by the slide 9, which is drawn out into the doorway F when the former is being filled. Those of the fines to which are opposite the door F are covered by the slide when thus drawn out, and the heat prevented from rising therefrom and the fuel from falling through into the chamber D.

The lower portion of the reservoir B is made detachable, for the purpose of renewing it when burned out.

In Fig. 4 I have shown another form of heater, differing, however, but slightly from that shown in Fig. 1, in which the flame passes directly through the flues a and returnsthrough the chamber 1) to the pipe (2. The heat is not so fully economized as in the first-described arrangement; but it may be preferable in many locations on account of requiring a less powerful draft.

The advantages of my invention are, that the heat is very nearly all utilized by passing over the extended surfaces of the generator. Steam is kept up constantly by filling the fuelreservoir at proper intervals, each operation occasioning no fluctuation in the steam-supply. All the parts of the apparatus are simple in construction and properly protected from destruction by heat.

It may be desirable to hinge each bar of the with reference to the fuel-reservoir B and augrate G separately. nular water-chamber A, and connected to the- WVhat I claim as my invention, and desire latter by pipes b, as and for the purposes set to secure by Letters Patent, isforth.

1. The smoke-chamber D and annular Water- I 7 T chamber A, with or without the vertical flues v DUNNIL a, in combination with the centrally-located \Vitnesses: fuel-reservoir B, for the purposes set forth. 7 S. SOUTI-IWORTH,

2. The arrangement of the steam-drum E CHAS. H. RUs'I.

Images