US2526016A - Heater - Google Patents

Description

Oct. 17, 1950 B. D. FIGG HEATER 2 Sheets-Sheet 1 Filed wa 25, 1946 UUUDUUEIUFIUUEIDDUU IN VEN TOR.

B. D. FIGG HEATER 2 Sheets-Sheet 2 Filed May 23, 1946 8 0 7 2 0 I 22 J I M a v, q n 0 so o o 6 000.0 3 s O O 0 l 3 H I 60006 o o o a, 0 ve e m we: I, ,5 3 /1 9 3 5 7 a 5 3 FIG 3 Mazda.

Patented Oct. 17, 1950 Y HEATER Basil D. Fi s, Lansing, Mich., assignor to Motor Wheel Corporation, Lansing, Mich a corporation of Michigan Application May 23,

. 5 Claims. 1 This invention relates to heaters and more particularly to circulating heaters having a forced air circulation.

"The'principal object of this invention is to provide a circulating heater having a fan therein for circulating air and means for'distributing some of the air to points remote from the heater. Another object of the invention is to provide aheater of this characterhaving' an air duct with a fan therein forming a portion of the wall ofthe heater, that portion being movable relativeto the remainder of the heater to permit some radiation of heat directly from the heat exchanger.

' These objects will more fully appear in the following specification when read in connectionwith the accompanying drawings, wherein:

Figure 1 is a front elevational view of a heater embodying the present invention;

Figure2 is a cross-sectional view taken on substantially the line 2-2 of Figure l;

Figure 3 is a cross-sectional view taken on substantiallythe line 3-3 of Figure 1;

Figure 4 is a top plan view of the heater with the top removed;

Figure 5 is a side elevational view of the heater;

Figure 6 is .a fragmentary front elevational view of a modified form of the invention; and

Figure 7' is a-fragmentary cross-sectional view taken on substantially the line of Figure 6.

Figures 1 to 5 show a circulating heater embodying one form of the invention. The heater comprises an outer casing I formed of two upright side walls I I and I2, a back wall I3, a front wall I4, a top wall I5, and a bottom wall or floor plate I6. Preferably these walls are all formed of sheet metal. Preferably the side wall I I is imperforate. The side wall I2 is provided with'a plurality of louvers I 1 adjacent the bottom there: of. The top wall I is also provided with louvers I8. The bottom wall I6 comprises a sheet metal plate having an opening I9 therein for a purpose which will presently appear.

The front wall I4 of the heater has a relatively large rectangular opening 20 therein. The opening 20 is closed by a movable portion 60 of a duct for circulating air. This duct ismade up of a front panel 2I and a rear panel 22 joined together by means of a perimetral wall 23. The interior of the duct is hollow. This movable portion of the duct is hinged to the front wall along one edge.

Adjacent the upper end of the duct is an air inlet opening 24 which communicates with the interior of the casing I0. Near the bottom of the outer panel of the duct are a plurality of louvers 25. These louvers provide an outlet opening for 1946, Serial No. 611,744

air from the duct. The louvers may be adjusted in size or completely closed by means of a slidin closure plate 23.

A small centrifugal fan 27 is mounted with its 5 inlet end adjacent the inlet 24. The fan 21 is attached to a shaft 28 of a small electric motor 29. The motor 29 is mounted on the outer panel 2| in any suitable manner. 1

In the bottom portion of the perimetral wall 23 is another outlet opening for air 30. This communicates with a fixed portion GI of the above mentioned air duct in the front of the heater. The fixed portion of the air duct comprises a register box 3| having an opening 62 in its top communicating with the opening 30 in the upper movable portion of the duct. A conduit 32 communicates with the register box 3i and extends to the side wall I I of the outer casing. The side wall I I i provided with an opening 63 registering 2 with the end of the conduit 32 remote from the register box. The last mentioned opening in side wall II is surrounded by a draw neck 32a. An.-

air duct may be connected to draw neck 32a to conduct air to a remote part of the dwelling in 25 which the heater is located.

vWithin the casing I0 is a conventional heat exchanger which in its present form is shown as being a vaporizing type oil burner. 33 and acom- .bustion chamber 34 thereabove. The burner and 0 combustion chamber are mounted upon a sheet "metal base 35 which is provided with small openings 36v therein to admit air to the burner for combustion. The air for combustion passes into the space beneath the base 35 through the open- 35 ing I9 in the bottom wall of the heater and passes out of the combustion chamber 34 through an opening 64 at the top thereof which is surrounded by a drawneck 65. A pipe (not shown) may be attached to the drawneck 65 and extended through an opening '36 in the top wall I5 of the casing and to a chimney.

Also mounted within the casing is a fuel tank 31 and an oil control 38. Fuel is fed to the burner throughatube 39.

5 Preferably one or more sheet metal shields Ml are mounted within the casing between the tank 31 and fuel control 38 so as to shield these from excessive heat of the heat exchanger.

The operation of the heater is for the most part self-evident. Air for combustion is fed to the burner through the openings I9 and 36 and fuel is supplied to the burner from the fuel tank 31 through fuel control 38 and pipe 39. Combustion within the heat exchanger heats the walls 61 thereof, which in turn heat the air within the heater. Air is drawn in through the louvers I'l inthe side wall and rises out through the louvers It in the top wall. as in a conventional circulating heater. When desired, however, the fan 24 can be operated, which will draw a large proportion of air from near the top of the heat exchanger into the duct in the front wall and force the same out through the louvers 25 in the front of the heater. If the louvers 25 are closed by the closure plate 26 the air will be forced down into the register box 3| and out through the conduit 32 into the associated air duct, if such is provided.

In some instances, it is desirable to d pense with the forced circulation of air but provide a considerable amount of radiant heat from the heater. In that case, the upper, movable section of the duct in the front wall can be swung open so that practically the entire front of the heat exchanger is exposed. In that case, a considerable quantity of heat is radiated directly into .the room. Air is also circulated by gravity, in the usual way.

Figures 6 and 7 disclose a slightly modified form of the invention. In this case the upper movable portion of the duct in the front wall is provided with an opening in its side adjacent the lower end. This opening is defined by a, drawneck 5|.

The opening in the bottom of the duct is dispensed with.

A register box 52, which may be of any suitable I cross-section, is located in the lower front corner of the outer casing with its upper end above the drawneck ii. The bottom and top ends of the register box are closed and an outlet opening 53 is provided adjacent the lower end of the register box. This opening can be connected to a suitable air conduit.

The upper movable section of the duct is hinged to the front wall in the manner described in connection with the previous modification. When th upper section of the duct is moved to close the opening in the front wall, the'drawneck 5! extends into the register box, and air from the power blower in the duct is discharged into the register box and thence into the conduit at the side of the heater. When desired, the movable section of the duct can be swung to its open position and a considerable quantity of heat will be radiated directly from the front of the heat exchanger.

From the foregoing it will be seen that the invention provides a novel form of air circulating heater in which provision is made for forcing air directly into the room in which the heater is loof said casing, said movable section having an inlet opening communicating with the interior of the casing and an outlet opening communicating with the below mentioned inlet opening of said fixed section, said fixedsection having an outlet opening communicating with the exterior of the casing and an inlet opening communicating with the outlet opening of said movable section only when the movable section is in closed position, a fan in said air duct for circulating air therethrough. and a heat exchanger in said casing.

2. Aheater as defined in claim I whereinsaid air duct extemk generally vertically, and said inlet opening for the movable sectbn and theoutlet opening for the fixed section are located adjacent the upper and lower ends of the ducts respectively.

3. A heater comprising an outer casing defined in part by upright walls, an air inlet in one of said upright walls, one of said'walls having a relatively large opening therein, an air duct associated with said casing, said air duct comprising a section in fixed relation to said casing adjacent the lower end of said opening and a generally vertical section movable relative to said casing, said movable section forming a closure for said opening and arranged so that the sections of said air duct communicate with one another only when said movable section is disposed on said casing so as to close said opening, said movable section opening in said air duct.

cated or to rooms remote'from the heater, or both. If desired, the power blower unit can be swung to open position to permit radiant heat to escape from the heater.

The particular construction disclosed also has an advantage that one buying such a heater can obtain the same with an ordinary flat plate as a closure for the opening in the front wall and use the heater solely as a circulating heater for a time, subsequently purchasing and installing a power blower.

The scope of the invention is indicated in the appended claims.

I claim:

1. A heater comprising an outer casing defined in part by upright walls, an air inlet in one of said upright walls, an air duct associated with said casing, said air duct comprising a sectionfixed within said casing and a section movable relative to said casing, said movable sec ion when in closed position forming a portion of one of said walls and arranged to be moved from said wall to open position to permit access to the interior 5. A heater comprising an outer casing defined in part by upright walls, one of said walls having a relatively large opening therein, an air duct in said casing. said air duct comprising a section fixed within said casing adjacent the lower end of said opening and a section. movable relative to said casing, said movable section forming a closure for the opening in said wall, said movable duct section having an inlet openin adiacent its upper end and communicating with the interior of said casing and said fixed section having an outlet opening communicating with the exterior of said casing, said fixed and movable sections having openings therein spaced from said inlet and outlet openings and arranged to register when said movable section is disposed so as to close the first mentioned opening, and means on said fixed section communicating with the exterior of said casing, a heat exchanger in said casing, and circulating means for circulating air through said air duct.

BASIL D. FIGG. REFERENCES CITED The following references are of record in the me of this patent:

UNITED STATES PATENTS Number Name Date 2,228,201 Cotes et al Jan. '7, 1941 2,330,938 Williams Oct. 5, 1943

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