US1540217A - Furnace - Google Patents

Description

June 2, 1925. 1,540,217

c. A. LAUsz-:N

FURNACE Filed June 17, 1924 2 Sheets-Shea?, l

IN V EN T OR.

A TTORNE Y.

I June 2,1925.

` C. A. LAUSEN FURNACE Filed June 17, 19244 2 Sheets-Sheet 2 31a/manici J?. Zaan/sew Patented .lune 2, 1925.

UNITED STATES PATENT oFFlcE.

CHRISTIAN A. LAUSEN, OF COUNCIL BLUFFS, IOWA.

FURNAGE.

Application filed . Tune 17, 1924. Serial No. 720,606.

to provide a. device of this character where-- by an efficient circulation of heated air will be maintained and wherein a maximum number of heat units will be conserved within the fire box while combustion is taking place therein. Also to provide a furnace wherein the minimum amount of heat units will be lost through the chimney, and the maximum heating of the recirculating `air obtained.

A further object is to provide a furnace ,with water jackets, positioned whereby they will absorb and convey heat units in to the volume of water contained therein for generating aqueous vapor or steam, which in turn is conveyed to the fire box and there decomposed into their elements for recombustion to augment the heating efliciency of the furnace.

A further object is to dispose the water jackets onopposite sides of `the furnace casing, and to provide pipes connected to their upper sides, which pipes extend downwardly and inwardly towards each other beneath the furnace grate and terminate in a perforated member through which the vapors pass to the fuel on the grate thereby rendering the same more volatile.

A further object is to provide a pipe connecting one of the water jackets tothe hood of the furnace and forming means whereby aqueous vapor or steam may be discharged into the air after it is heated, and before it passes through the pipe leading to the registers of a building, thereby mois tening the air.

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawings, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings i Figure 1 is a perspective view of the furnace, parts being broken away to better show the structure.

Figure 2 is a vertical transverse sectional view through the furnace.

Figure 3 is a detail sectional view through a portion of the front wall .of the furnace casing, and the hood.

Figure 4 is a vertical longitudinal sectional view through the furnace.

Referring tothe drawing, the numeral 1 designates the main casing of the furnace which is preferably rectangular, and extending Vthrough the front wall 2, and the rear wall 3 are upwardly and forwardly inclined pipes or fiues 4, through which air passes from the supply pipe 5, which conducts air to the chamber 6 of the hood 7. The air in passing through the flues 4 is heated by fire upon the grate 8 disposed below the` flues and rises into the forward hood 9, from which forward hood the heated air passes through the pipe 10 to the various' rooms of a building. The products of com-l busion pass around the fiues 4 heating the air therein, and dischargeA through the pipe 11 which leads to a chimney in the usual manner.V It has been found that a large ypercentage of the heat units in a furnace `pass out the chimneyV incident to improper combustion or construction. It has also been found that by supplying steam or aqueous vapors to the fuel, during the combustion, the maximum heat units are obtained and conserved for heating purposes, and to accomplish this result the opposite sides of the casing 1 adjacent the sides of the fire box above the grate 8 are provided with water jackets 12, in which water is placed. Connected at 13 to the upperv sides of the water jackets are pipes 14, which pipes i extend downwardly and inwardly to posi'- tions below the (grate 8, and are connected to a perforate chambered member 15 through the perforations 16 of which the aqueous vapors or steam is discharged into the fuel on the grate 8, thereby through the recomposition of lhydrogen and oxygen gases, previous decomposed through the energy 0f heat units increasing the combustion and insuring the maximum amount of heat units obtained from the fuel. The water in the water jackets 12 is maintained heated by Aheat radiated through the side walls 1 of vthe casing 1, therefore it will be seen fthat for heating the water and isfnot entirely lost.

One of the water jackets l2 has connected' thereto7 above the water level therein, pipe 17, which pipe is connected tothe lower end of the forward hood 9 at 18, and forms ineans for conducting aqueous vapors and Vteam to the hoods? where it will mingle /witli the heated air passing from the lues 4 tothe pipe l0; consequently said heated air will be partially inoistened when it reaches a room, whereby the oxygen is replenished to a certain extent.

From the above it will be seen that a furnace is provided wherein aqueous vapors or steam are conveyed to the fire box of the furnace thereby iiisuri a maximum etliciency of combustion i.. consequently the utilization of the maximum heat units obtainable from the fuel. It will also be seen that aqueous vapors are conveyed tothe heated air after the passage from the fines and consequently the air will be moistened when it enters the rooinof a building.

:The invention having been vset forth what is claimed as newjand useful is :k

l. vThe combination with a hot air furnace, said furnace comprising a casing, Ia' tire box`having a gratetlierein, and flues above said fire box, of means for supplying aqueous vapors and steam to the fire box, said means comprising water jackets. carried by the casing and heated by the fire box and means for conveying the aqueous vapors and steam4 from the water jackets and discharging the same beneath the grate.Y

2. The combination with a-hot air furnace, Vsaid furnace comprising a casing', a lire box` having. aV grate therein, and flues above said lire box and through which air signature.

nace, said furnace comprisingI a casing, aix;

tire box having a grate therein, and flues above said :fire box, anda hood having a heat collecting chamber into which the air from the flues is discharged, o f means for supplying aqueous vapors-and steam to the fire box upwardly through the grate, said vapors and steam being generated by heat radiated from the i'ire box and means for discharging a portion ot" said vapors and steam into the heat collecting chamber of the hood.

4. The combination with a furnace comprising a casing, a tire box, and flues, anda heat collecting hoodinto which the ilues discharge, ofineans for supplying aqueous vapors and steam to said hre box fand heat collecting hood, said means comprising water jackets carried by the opposite sides of the casing and heated by heat radiated from the lire box, pipes carried .by said water jackets adjacent their upper sides and discharging into the fire box, and a pipe carried by one of the water jackets and disi charging into the heat collecting hood. In testimony whereof I hereunto aiiix my oHRisTiAN A. LAUSEN.

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