US738640A - Construction of heating-stoves. - Google Patents

Description

am 0 V 1 8. P E s D E T E T A P S S U A T S W C 0 4 DO 7 0 N CONSTRUCTION OF HEATING STOVES.

AIPLIOATION FILED MAY 5. 1899.

N0 MODEL.

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I a Ina/era? 00/77 Jazz/ad" Patented September 8, 1903.

PATENT FFICE.

CARL WILHELM s'rAUss, OF BERLIN, GERMANY.

CONSTRUCTION OF HEATlNG-STOVES.

SPECIFICATION forming part of Letters Patent No. 738,640, dated September 8, 1903.

Application filed May 5, 1899. Serial No. 715,748. (No model.)

To all whom it may concern:

Be it known that I, CARL WILHELM STAUSS, engineer, a subject of the King of Prussia, German Emperor, residing at Spenerstrasse 23, Berlin, Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in the Construction of Heating-Stoves, of which the following is a full and complete specification.

This invention liasreference to heatingstoves and the like. Some stoves nowin use are defective in that they render a small part only of the heat generated available for heating purposes, the major portion by far passing into the chimney. Stoves constructed of iron have the further defect that the parts of the same nearest the fireplace becorne readily overheated,

wherefore they are soon destroyed by cracking. Again, as a natural consequence of the combustion of the dust on the hot stove the atmosphere in the room soon becomes close and unhealthy, and its use is limited to re mote distances from the stove, the comfort of the latter being almost entirely destroyed. Another great defect lies in the fact that the combustion of fuel is accompanied by an ab{ forming a part of this speci fication, wherein Figure 1 is a vertical section of a stove con- ,structed in accordance with my invention,

- the same being taken on linear b, Figs. 2 and 3. Fig. 2 is a vertical section at right angles to Fig. l, the section being shown the full length of the stove, but taken'on the line 0 d of Fig. 3. Fig. 3 is a transverse section on line g h, Fig.2. a Fig. 4 is a transverse section on line cf, Fig. 2; and Figs. 5 and 6 are details of construction hereinafter referred to.

The stove is constructed for self-feeding and continuous heating, but may also be used for temporary heating. It comprises nels b," the heating-chamber proper, o, with the gas-passage o; the f uel-hopper d, also supported upon said lower part, and the stovecasing c, which iucloses the upper portion and is provided with a perforated hood.

The stove is supported upon a cast-iron plate 6, provided with feet 6 or the like, 'the lower edge of the stove being preferably about eight inches above the floor, so that the air is inducted and passes upward between the stove and casing and makes its exit through the perforated hood 6 The fireplace a, is composed of walls of fireclay surrounded by four iron plates a, Fig.

4., and provided with the fire-channel b. The front plate has a centrally-located opening for the insertion of feed-pipe f for attaching the standing grate g and for the slide of the ash-box h. r

The firebricks rest upon a support or grid y, whose horizontal upper plate has an opening to receive a small grate The downwardly extending Walls Z of this opening form a slide for the passage of the ash-box h. The uppermost fire-brick a has a channel q passing through it, whose object will be presently explained. This channel is in a plane elevated above that of the fire-channel, and the openings of heat-absorber 0 correspond with the openings of the fire-chambers 0, situated above the fire-channels, and are in position to receive the'direct attack of the fire upon them. v

Upon the fire-brick a is supported a kneeshaped plate a, which separates the fireplace from the upper portion of the stove and is provided with openings corresponding to those of the heat-absorber 0, the plate being secured to the front grate g at either side of the feed-pipe fin any suitable manner. The openings in this plate are surrounded by,1'ecesses n, filled with sand, as shown at n a like recess being also provided in that part of the plate covering the fireplace, as shown extended to form a band m. The plate m is perforated similarly to the knee-shaped plate 7?. and carries on its under side projections m which extend into the recesses 97..

with extensions so that by placing the plates alongside of each other they form a series of passages s for the gases of combustion.

These plates are united to form an integral body in any suitable manner-for instance, by bolts or the like.

The fireechambers 0 have vertical partitions 1, so that the gases of combustion are forced to come in contact with the whole surface of the heating-body before their escape into the fiue c, the latter being formed by a partition u. The fire-chambers 0 have openings at their top to facilitate cleaning, the same being closed by a common cover a", as shown. 7

The flue a may be provided at its base with one or more slides 19, which are intended to be removed during the cleaning of the firechamber. The accumulation of dust, &c.,can thus be readily swept into the fire-channel b, from whence it falls into the ash-box 71.. These slides may, if desired, be taken out during the preliminary heating to promote a stronger draft, the slides and their guides being of any well-known construction.

The air-channels s are closed above and below and also at their sides in the middle, but otherwise laterally open above and below (see Figs. 1 and 4) for delivering the heated air into the room. The pipe to may be provided with any suitable damper. In the present instance this is shown as consisting of a flanged disk w, revolnbly mounted in the lower open end of the pipe and operated as indicated at 20 w The plate m, upon which rests the heating-body, also supports the fuelhopper d, which is provided at its base with sanded joints, as described, to exclude the gas therefrom. Between the bottom of the hopper and the plate n is formed a space 01', which affords a free circulation of air, keeps the bottom of the hopper cool, and thus prevents the formation of gases therein.

In order to prevent an ignition of the coal in the hopper through heat radiation, its feeding-mouth f is not located directly over the fire-chamber, but to one side thereof, and to prevent, further,'an ignition of the coal in front of the feeding-mouth the fire-brick a located opposite the mouth, is made hollow or provided with an opening, as at q, so that it is being continually cooled by the circulation of air. Directly below this brick is another brick 00, which after the fire is started is heated to a glowing state and reduces the fuel in contact with it to gas and causing it to ignite, so that the fuel is in a glowing state to the full height of the standing grate g and heats the air, as would an open fire, by heatrays. There is not the slightest danger of the heating-body becoming red-hot so long as the size of the fireplace is in proper proportion to that of the heating-body, because the heat is not concentrated upon it, the intensity of the fire being weakened by its being split up into numerous currents, and because of the continuous change of air in the airchannels 5. The gases of combustion are thus cooled down to about 100 Raumur.

It will thus be seen that I have succeeded in producing a superior stove, the advantages of which will be manifest:

Having thus described my invention, I claim 1. A stove provided with a fireplace,divided into a feeding portion and a gas-consuming chamber, a series of gas-channels above the gas-consuming chamber, a heating-body supported above the fireplace having parallel vertical gas-passages registering with said channels, a chamber in said heating-body in communication with the upper gas-passages, and a partition in the chamber-facing, and at a short distance from the discharge ends of the intermediate parallel gas-passages, substantially as described.

2. A stove having a divided fireplace, a hollow overhanging arch or bridge dividing the fireplace into a feed portion and a gas-consuming portion, a horizontal grating, a front standing grating,a grating above the fireplace forming a series of parallel gas-passages, a fuel-hopper communicating with the feeding portion, a heating-body supported upon the top grating and having ordinary air and fire chambers, the fire-channels registering with said gas-passages, and a casing inclosing the

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