US1361701A - Heating-stove - Google Patents

Description

A. ERICKSON.

' sTovE.

APPLICATION FILED SEPT. 5. 1919.

1,361,701 Patented Dec. 7, 1920.

UNITED STATES PATENT oFFICE. i

AUGUST ERICKSON, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OIE ONE-HALF TO AXEL PERSON, 0F MINNEAPOLIS, MINNESOTA.

HEATING-STOVE.

Application filed September 5, 1919.

To all whom Macy concern Be it known that I, AUcUsr ERICKSON, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Heating- Stoves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved heating attachment or auxiliary heater for heating stoves, by the use of which either air or water may be heated and conveyed to a point or place more or less remote from the stove or heater roper.

The invention consists of the combination of devices hereinafter described and defined in the claim.

Particularly the auxiliary heater is designed for use in connection with coal stoves that are equipped with central feed magazines for the automatic delivery of the coal onto the grate; and for such application, the auxiliary heater is made of annular drumlike form of a size to surround the fuel mag azine, but spaced within the wall of the stove so as to leave an annular flame passage from the grate upward, immediately adjacent to the outer wall of the stove.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views. Referring to the drawings, Figure 1 is a view chiefly in vertical section on the line 1-1 of Fig. 2, but with some parts in full elevation, and Fig. 2, is a horizontal section taken approximately on the line 2 2 of Fig. 1.

The base portion of the stove is indicated by the. numeral 3, its upright cylindrical shell by the numeral 4, its top plate by numeral 5, and the detachable cover by the numeral 6. This stove is assumed to be of a standard or well-known construction, equipped with the customary fire-pot 7 grate 8, and fuel door 9. This stove may vary greatly in design so far as my invention is concerned, but it is provided with the central fuel feeding magazine 10, which extends downward from the top plate 5 land terminates at a suitable point above the grate 8. The numeral 11, denotes a small cover for the upper end of magazine 10.

Specification of Letters Patent.

Patented Dec. 7, 1920.

Serial No. 321,878.

In the ordinary arrangement of a stove of this character, the space between the magazine 10 and the outer wall 4 is usually clear or unobstructed so that flames pass freely against the walls of themagazine 10, and are not always forced against the outer shell 4. The shell 4 is shown as provided near its top with a smoke pipe or outlet 12.

The auxiliary heating drum 13, as already indicated, is of an annular drum form, may be either of cast-iron or sheet metal, and closely fits the exterior of the fuel magazine 10. The outer wall of the drum 13 is of such diameter as to leave between the same and the shell 4 an annular flame passage 14, of such size that it will not obstruct the draft but will nevertheless cause the flames to pass upward and outward against the shell 4 on their way to the smoke pipe 12, thus insuring heating to the greatest possible extent, of the said outer shell. This heating action just noted, while important is incidental to rather more important features resulting from the use of the auxiliary heating drum. The top of the drum 13, is spaced from the top plate 5 of the stove so as to leave a hot air or llame passage; and at its bottom said drum is provided with feet or rest lugs 15, that rest upon the top flange of the fire-pot 7. These feet or lugs 15, not only support the set of the drum 13, from the fire-pot, but space the drum from the fire-pot, so as to leave the proper annular llame passage from the combustion chamber upward to the annular flame passage 14.

In the arrangement illustrated, the drum 13 is designed for heating air and hence is provided with an air intake pipe 16, that leads in through one side of the shell 4 and opens in the lower portion of feed drum 13; near its top, feed drum 13 is provided with a hot air delivery pipe 17 that leads out through the shell 4 and may be extended to any suitable point or place, such as a room remote from the heater or outside of the room in which the stove is placed. For instance, the feed pipe 17y might lead to an up-k per room.

It is, of course, evident that when air is heated in the drum 13 it will rise and pass outward through the delivery pipe 17, while the colder air will be drawn into the drum 13 through the intake pipe 16 and thus keep up a circulation of the hot air. The air will be rapidly heated in the said auxiliary drum and the heat absorbed for this purpose will be chiefly that which is usually wasted by the escape of heat up a Chimney.

The auxiliary heating drum may be,

readily applied to stoves now in use but may, of course, be incorporated in new stoves.

For the heating of. water the same drum or a drum of shghtly modified form and with water circulating Connections of well understood arrangements may be employed.

That I claim is z- The Combination with a heating stove having a lire pot, a grate7 a closed annular heating drum within the stove and spaced apart therefrom and formed with an upwardly flaring vertical passageway extending Completely through the heat-ing drum and entirely closed except at its ends, air intake and outlet pipes-extending through the shell of the stoverand opening into the heating drum at the top and bottom thereof, respectively, and a fuel magazine remov ably mounted in said passageway.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST ERICKSON.

lVitnesses: Y

BERNIGE Gr. BAUMANN, HARRY D. KILGORE.

Images