US2430594A

US2430594A - Magazine stove with gas combustion

Info

Publication number: US2430594A
Authority: US
Publication date: 1947-11-11
Anticipated expiration: 1964-11-11

Description

Nov. 11,11947. A P. wlNGERT 2,430,594

MAGAZINE STOVE`WITH GAS COMBUSTION CHAMBER Filed July .16, 1942 2 swans-sheet "1 V /0 @I 2 I Nov. 11, 1947. 'P. wlNGERT MAGAZINE STOV WITH GAS COMBUSTIN CHAMBER neem-sheet no n 9 0 f m -E o) oo I OD 3% Patented Nov. ll, 1947 MAGAZINE STOVE WITH GAS CGMBUSTION CHAIYLBER Paul Wingert, Montpelier, Ohio Application July 16, 1942, Serial No. 451,097

1 Claim. (Cl. 126-73) 'This invention relates to improvements in stoves, furnaces and the like, and is a continuation-in-part of my co-pending application, Serial No. 377,511, iiled February 5, 1941, now Patent No. 2,345,519, for Draft tube for stoves and furnaces.

The main objects of my invention are to provide an improved internal construction forstoves and furnaces; to provide a new and novel liner for stoves and furnaces having a sealed magazine; to provide a corrugated liner for stoves and furnaces of the sealed 'magazine type; 'to provide a pair of corrugated liners for a, sealed magazine of a stove or furnace, which liners are arranged to abut against the inner front and reai` walls of the stove shell respectively so that the grooves on the side of the corrugated members facing the said walls of the stove shell form closed vertically extending passageways; the upper 'end of the corrugated members being capped while the lower ends of the so-formed passageway-s are arranged to communicate with the ash pit chamber; to provide in such arrangement -of parts periorations, .slots or the like in the corrugated members adjacent their upper ends whereby .any volatile Igases accumulating Vin the upper end-oi the magazine may be drawn into the aforesaid v.passageways through said perforations and be discharged into the ash pit chamber and below the grate line; to provide in a device of this character, an improved safety means for the sealed magazine to prevent the creation of gas pressures therein and to obviate danger of explosion; to provide a cornbustion device of this character wherein .the velocity of travel of the products of combustion is relatively slow and completely under control at all times; and to provide a new and novel stove or furnace which is relatively ,simple in construction and extremely efficient in operation.

A speciiic embodiment of this invention is shown in the accompanying drawing in which:

Figure 1 is a horizontal cross-sectional view taken on the .line I -l of Figure 2.

Figure 2 is a vertical cross-sectional 'view on the line 2--2 of Figure 1.

Figure 3 is a vertical cross-sectional view `taken on the line 3-3 of Figure 2.

Figure 4 is a perspective view of the .fuel feed door.

Figure 5 is a sectional View taken on the 5-5 of Fig. 3.

Referring in detail to the drawings, the :stove to which this `invention relates is of the sealed magazine type, and the magazine herein 4disclosed is deiined by a pair of cast iron or steel fcorrugated front and back walls l and 2, and a pair of side walls 3 and :4., constructed of iire brick, the

lower ends of which are spaced away from grates li a predetermined distance and held in such posi tion by suitable brackets 6 and l. The upper end of the corrugated wall l is capped or sealed by any suitable means such as a cover plate The upper end of the corrugated wall 2 abuts against the lower portion wall 9 of the upper chamber H3 and is thereby sealed at this end. rThe lower ends of the corrugated walls l and 2 bear against the grate plate Il. The grate plate l l is provided with spaced marginal openings |2 aiigned with the lower ends of the grooves in the corrugated members. The upper end of the corrugated walls l and 2 are provided with perforations or slots Ill the purpose of which will be hereinafter described.

The sealed magazine is enclosed in a suitable housing or shell l5 preformed to any desired size and shape and constructed of any suitable material such as heavy steel. The stove shown is also provided with a fuel feed door I6 having a han dle I1; an ash pit chamber i8 having the usual ash pit door I3 hingedly connected to the door frame 20. The ash pit `door I3 is also provided with suitable regulator means, not shown, for controlling the amount of primary draft ail1 entering the ash pit 18 through the door IS as will be understood by those skilled `in the art. The upper chamber l0 communicates with the stack through suitable piping 2|.

As yshown in Figs, 3 and 5 the upper chamber is separated from the magazine by the vwall portion yil. This wall portion 9 lies lon top of the

walls

3 and 4, and is spaced above the saine 'by means of downwardly inclined portions ill) which termi-nate at their forward ends in vertically eX- tending walls y9ct which extend upwardly to the top ofthe casing and forwardly into engagement with the casing l5 `so as to cooperate with 4the door fl-G .and the sealing `ring R to seal the magazine.

The fuel feed door l5 4is also provided with `a downwardly extending flange 22 which acts as a safety Dy-pass damper door and it is .arranged to completely cover the opening 23 in the side wall of the upper chamber so that the feed door I6 is swung upwardly around pivot Eil to yopen the same, the .damper door 2-2 swings forwardly and upwardly away from the opening 23 (see Fig. 3) thereby uncovering the same to permit any volatile gases accumulating in the upper end of the sealed chamber to escape :to the upper chamber Llil and ont the stack. 'This substantially removes any danger lof .the gas-zes escaping into the room when the fuel .feed door lzis opened.

The gratos 5 are pivotally .secured to the grate frame II in the usual manner and are operable through manual vn'iovement of the grate fbar 125.

after described. The

walls

3 and 4 are spaced away from the shell I5 (see Figs. l and 2) and 1 thereby form the radiators 21-28 respectively through which the products of combustion pass from the combustion chamber to the upper chamber IB. l

Metallic baille plates 28 and 3i! are placed diagonally one in each of the lower ends of the. radiators 2'I and 28 respectively, see Fig. 2. The lower edges of each of the plates 29 and 3G lbear against the grate frame i I while the upper edges thereof bear against the inner wall of the shell I5.

The angle at which the baille plates 2@ and 33 are set is predetermined, as the area of the opening, i. e., the opening between the bottom edges of

walls

3 and 4 and the faces of bafile plates 29 and 30 respectively, is definitely affected by the relationship of the angular position of the baille plates and the bottom edges of

walls

3 and 4. It will be apparent that the greater the angle, the larger the opening and vice versa.

After the re has been started in the magazine, the magazine may be completely filled with fuel since combustion takes place at the grate line and the products of combustion are drawn on" at the grate line and pass into the radiators 2? and 28. The products of combustion passing through the radiators 21-28 respectively co-mingle in the upper chamber I0 and thence pass out to the stack.

Any volatile `gas which accumulates above the fuel -bed will be drawn into the passageways I3, through the perforations i4 and be directed downwardly to the ash pit and be emitted below the grate line, where it admixes with the draft air entering the ash pit through the ash pit door I9. The combined fresh air and volatile gases then pass upwardly through the grates 5, to convert the gas into a flame.

As the magazineof the stove is completely closed on top and has no direct connection with the stack, while the feed door I6 is closed, and because of the draft effect of the stack in the ash pit chamber.

combustion in the radiators must pass through restricted openings between the lower ends of the walls 3 and fl and the faces of baille plates 2S and 3@ to reach the upper chamber Ill; hence providing more time for the products of combustion to remain in the radiators and allowing ample opportunity for them to give on their heat. The purpose of providing the upper chamber iii is to afford amore uniform distribution of the products of combustion as they pass from the

radiators

2 and 28, thereby obviating cool areas in f the upper rear portions of the radiators,

It will be understood that corrugated rebrick may be substituted in place of the cast iron or steel corrugated side walls I and 2, thereby cutting down the weight of the stove as a whole. Such firebrick would, of course, be provided with perforations similar to those indicated by the numerals lll in the cast iron or steel plates disclosed in the drawings.

In order to prevent primary draft air or the volatile gases emitted into the ash pit chamber I8 from passageways I3 from entering the radiators 2l and 28 because of leaks around the upper edges of the baille plates 29 and 3B where they bear against the inner walls of the shell I5, I have secured partition plates 3l and 32 in the The plates are secured therein in any suitable manner, such as by bolts 33, and thereby restrict the area of the ash pit chamber and effectively accomplish the results sought. As clearly shown in Fig. 2, the plates 3| and 32 are set in the ash pit chamber I in such a manner that they substantially form a continuation of the baille plates 29 and 3U respectively and seal oil the area directly below the radiators 2l and 28 so that this area bel comes a dead air space.

radiators 2l and 28, the gases driven off from ,Y

brick walls

3 and 4 and the walls I and 2 and 1 through the hot coke on the grate where they admix with the combined freshr air and volatile gases coming from the ash pit chamber I8, to convert the gases into a flame.

The result is that the

rebrick walls

3 and 4 become very hot and the heat thereof cuts the coal in the magazine and causes it to move downwardly very slowly and easily; thereby preventing the coal from freezing up and caking or arching. Since there is but a slight fuel bed resistance an extremely low draft is all that is necessary in a normal operation. This results in a slow lazy flame travel through the radiators, allowing ample time for the transfer of heat to the room, and thereby giving lower than average stack temperatures.

It will also be apparent that the products of The stove as a whole is also provided with the usual legs 3d to space it from the floor upon which the stove is to be set.

Although but one specific embodiment of this invention is herein shown and described, it is to be understood that some of the details set forth may be altered or omitted without departing from the spirit of this invention as dened by the following claim.

I claim:

A stove of the class described wherein combustion takes place at the grate line and the products of combustion are withdrawn at the grate line comprising a shell having a top wall, a sealed magazine located within said shell, grates located below said magazine, an ash pit chamber provided with a primary draft damper, a fuel feed door in said shell and communicating with said sealed magazine, a chamber located in the upper end of said shell and defined by side, top and bottom walls, and a pair of radiators each delined by a vertically extending rebrick lining and the inner face of a portion of said shell, said sealed magazine being defined by a portion of the top wall of said shell, the bottom wall of said chamber, the inner faces of said firebriclr lining forming a pair of side Walls, and front and back walls having spaced vertical corrugations parallelly disposed against the respective inner walls of said shell the lower portions of saidside walls of said magazine being spaced away from said grates to provide communication between said magazine and said radiators, said corrugated walls andshell forming a series of independently arranged enclosed passageways which terminate in said ash pit chamber, each of said passageways being closed at their upper ends and Vsaid corrugated Walls having perforations therein located adjacent the upper end thereof whereby volatile gases accumulating in the upper end of said magazine may be drawn through the perforations into said passageways and directed into said ash Ipit chamber, admixed with primary air in said ash pit chamber and the admixture returned to said magazine.

PAUL WINGERT.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,327,798 Wotherspoon et al. Jan. 13, 1920 1,845,337 Pence Feb. 16, 1932 Number Number Germany Oct. 24, 1924