US1892761A - Stove construction - Google Patents

Description

Jan. 3, 1933. P, A CELANDER 1,392,761

STOVE CONSTRUCTION L I INVENTOR PH/L /P H. CEL H/VOER TToRNEY Jan. 3, 1933.

P. A. CELANDER sTovE CONSTRUCTION Filed June 17, 1929 5 Sheets-Sheet 2 Jan. 3, 1933. P. A. CELANDER 1,892,761

sTovF. CONSTRUCTION Filed June 17. 1929 5 Sheets-Sheet 5 y/ 'l FI 20c BYQ M ATTOR N EY Jan. 3, 1933. p. A, CELANDER 1,892,761

STOVE CONSTRUCTION Filed June 17, 1929 5 Sheets-Sheet 4 BYOWM ATTORNEY Jan. 3, 1933. P. A. CELANDER STOVE CONSTRUCTION Filed June 17, 1929 5 Sheets-Sheet 5 ATTORN EY Patented Jan. 3, 1933 UNITED STATES PATENT OFFCE PHILIP A. CELANDER, 0F BLOOMINGTON, ILLINOIS, ASSIGNOR TO WILLIAMS OIL-0- MATIC HEATING CORPORATION, OF BLOOMINGTON, ILLINOIS, A CORPORATION 0F ILLINOIS smovn CONSTRUCTION Application led June 17, 1929. Serial No. 371,342.

rlhis invention relates toimprovements in stoves and more particularly to the construction of a stove particularly adapted to that class known as oil heaters.

1t is an object of this invention to provide an oil burning heater so constructed as to cause a circulation of the heated air thereabout to increase its efficiency. lThis invention relates more particularly in the construction of the casing which surrounds the heating element and particularly relates to the provision of means whereby cool air is admitted at the bottom of the casing and is caused to circulate upwardly and outwardly by the heat produced from the burner.

With these and other objects in view reference is made to the accompanying drawings which illustrate a preferred form of this invention, however, minor detail changes may be made therein without departing from the scope thereof.

Figure 1 is a view in front elevation of one embodiment of this invention.

Figure 2 is a view in transverse horizontal section taken on the line 2-2, Figure 1, looking in the direction of the arrows.

Figure 3 is a view in central vertical section taken on the line 3 3, Figure 2, looking in the direction of the arrows, with the oil burner illustrated in side elevation.

Figure 4 is a view in central vertical section taken on the line 4, Figure 1, looking in the direction of the arrows, illustrating the portion of the oil burner and' reservoir in side elevation.

Figure 5 is a view in front elevation of another form of this invention.

Figure 6 is a top plan view of Figure 5.

Figure 7 is a vertical section taken on the line 7-7, Figure 6, with parts in side elevation.

Figure 8 is a view in vertical section taken on the line 8 8, Figure 6, looking in the direction of the arrows.

Figure 9 is a view in horizontal section taken on the line 9-9, Figure 7, looking in the direction of the arrows.

The embodiment of this invention, as illustrated in Figures' 1 to 4, comprises a casing 1, mounted upon a base 2, which is supported upon legs 3. While the caslng 1s 1llustrated as having eight iat sides, it is immaterial to this invention whether this casing be cylindrical or provided with flat surfaces as shown. The heating element is preferably of the oil burning type and, in this instance, is illustrated as a commercial type of oil burner mounted in a cylindrical receptacle 4, supported above the base 2. Inasmuch as the heating element does not form the essence of this invention and any other type of oil heater may be substituted therefore, only a brief description of the heater and its related parts is here given. It is preferable to provide a bracket 5, secured at the rear of casing 1 for supporting the oil reservoir 6 which communicates with the burner element 7 of the heater through oil pipe 8.

The casing 1 surrounding the heating element extends a considerable distance above it and is closed at the top with a cover 8a, so that the heat arising from the combustion of the oil will ascend and will be transmitted through the casing to the surrounding atmosphere. A door 9, is preferably provided in the front of the stove, which opens into the interior of the casing through which the condition, or presence or absence of combustion may be ascertained. In order to increase the circulation of air about the casing a plurality of channels 10 are secured in vertical relation about the interior of the casing 1. In the type of stove illustrated, a channel 10 is secured to each flat surface with the exception of the rear surface which supports the oil reservoir.

It is preferable to construct the channels of equal depth and each one is closed at the bottom and rests upon the base 2, and is closed at the top beneath the cover 8, Each channel is also provided with an inlet 11 adjacent its base which opens through the casing 1 to the outside atmosphere, and with an outlet 12, adjacent its top also opening through the casing 1 to the outside atmosphere. The inlets 11 and 12 each provided with a louver 13, whereby the amount of air admitted and discharged from the channel may be regulated.

The fumes or gases of combustion are conducted by the elbow 14 to the usual stove pipe communicating with the chimney.

It is readily seen that by this construction when the burner is ignited the inner walls of the channels 10 will transmit the heat therethrough and cause the column of air contained therein to ascend upward and pass out through the outlets 12, and at the same time draw cooler atmospheric air into the interior of the channel through the inlets 11, so that as long as the burner is in operation a circulation through the channels will be set up and continued. This circulation will constantly supply heated air to the room containing the stove and on account of the movement or circulation of the air will greatly increase the efficiency of the heater.

The form of stove illustrated in Figures 5 to 9, inclusive, embody the same principle as heretofore described in a somewhat different construction. In this case the casing 1 of the saine general outside contour as illustrated in Figures l to 4 supports the burner element 7 within a cylindrical receptacle 4 in the same manner. The legs 3 of Figure 1 are omitted from the casing and a cylindrical elbow 15, is secured at one end centrally to the cover 8 and at the other end to the rear of casing 1, as shown in Figure 7, the cover 8a and casing 1 being provided with apertures communicating with the interior of the elbow.

In this instance the bottom of the casing 1, is supported on brackets 16 within a surrounding casing 17, so the general contour of the casing 1 is spaced apart therefromA as shown in Figures 7 and 8. The surrounding casing 17 is supported on legs 18, is provided at the back with apertures allowing the bracket 5 supporting the fuel tank to pass therethrough and be secured to the casing 1, and for the passage of the elbow 14 therethrough. It is preferable that the cover 19 of the surrounding casing 17 be provided with an opening adapted to receive and support an evaporator pan 20, and the body of the cover between this central opening and the outer circumference is provided with a plurality of radial .slots 20a. The bottom of the surrounding casing 17 is open and the brackets 16, preferably support the bottom of the interior casing a slight distance thereabove. The front of the surrounding casing 17 is provided with an opening connected by a flange member 21 to the door opening of the inner casing and is provided on the exterior of the surrounding casing 17, with a door closure 22. Figure 7 illustrates a section of stove pipe 23, connected to the elbow 14, having interposed therein a draft regulator 24.

In this instance the inner casing 1, will transmit heat from the burner to the air space between it and the surrounding casing 17, causing the air to travel upward,

drawing fresh air in from the open bottom,

and that air passing between the two casings at the rear will enter elbow 15, which as it is directly over the burner and therefore subjected to greater heat than the upper side walls, will increase the temperature of the air passing therethrough to the space between the covers 8il and 19, the heated air in this space passing out through the plurality of the slits 20a in the cover 19 and thereby a circulation of heated air is set up in and about the stove.

The air drawn in from the bottom between the casings when the Aburner Haine is burning will be gradually heated as it ascends toward the discharge slots 2()a in the cover 19 and that portion of the partially heated ascending air drawn into the elbow 15 will ascend more rapidly as its temperature increases imparting an additional upward impetus through the discharge slots and thereby increasing the rate of circulation set up between t-he walls ofthe casings 1 and 17.

' The evaporator pan 20 is preferably provided with a cover f2.0c having slits 20d through which the Water vapor may pass.

What I claim is:

1. In a stove construction, a Huid burner therein, a casing about and spaced apart from said burner, a Huid supply reservoir supported upon the exterior of said casing, and a plurality of channels secured to the interior of the casing and about said burner, each channel opening to the atmospheric air adjacent the top and bottom of the casing, whereby when the burner is in operation the heated air will pass out of the channels at the upper openings and fresh air will be drawn therein through the lower openings.

2. In a stove, a casing, a fluid burner therein spaced apart from the casing, a fluid supply reservoir supported on the exterior of said casing, a plurality of vertical channels secured to the inner sides of the casing and surrounding said burner each channel provided With an opening through the casing adjacent its upper and lower extremities, and a register upon each opening whereby when the burner is in operation the amount of heated air discharged from the upper opening is regulated.

PHILIP A. CELANDER.

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