US2164147A - Range - Google Patents

Description

F. H. SCHNEIDER June 27, 1939.

RANGE Filed Au 7, 1936 3 Sheets-Sheet l June 27, 1939. F. H. SCHNEIDER HANG E Filed Aug. 7, 19 5 3 Sheets-Sheet 2 T o o o o o o o o o o INVEI'V'TQR.

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June 27, 1939. F. H. SCHNEIDER 4 RANGE Filed Aug. 7, 1936 SShgets-Sheet 3 INVENTOR.

7M2FM ATTORNEY.

Patented June 27, 1939 UNITED STATES PATENT OFFICE Application August 7,

2 Claims.

My present invention relates to a novel range and more particularly to one wherein an oven is provided with an oven burner and with a broiler burner. A damper controlled vent is provided for the oven, and the fuel supply is controlled by a valve which when turned in one direction supplies fuel to the oven burner and When turned in the opposite direction supplies fuel to the broiler burner. Means are provided to connect the damper to the valve so that the damper is moved. to open position when the damper is turned to supply fuel to either the oven burner or the broiler burner.

This application can be considered as in part a continuation of my prior application, Serial No. 7,465, filed February 21st, 1935, now Patent No. 2,089,816, granted August 10, 1937, for a Dual range.

I have preferred to illustrate the invention in conjunction with a dual range in which a common oven is adaptedto be heated independently or simultaneously with different types of fuels.

In dual ranges as heretofore manufactured, which employ an oven which can be converted to operate with either coal or gas, the same oven efficiency has not been obtained with the different types of fuels.

An object therefore, of this invention is to devise a novel dual range in which substantially the same oven efficiency is obtained with different types of fuel.

With the foregoing and other objects in view, as will hereinafter clearly appear, my invention comprehends a novel range.

It further comprehends a novel construction and arrangement of an oven having an oven burner, a broiler burner, a damper controlled vent, a valve operable to selectively supply fuel to said burners, and means connecting the damper and valve whereby the damper is moved to open position when the valve is operated to supply fuel to either the oven burner or the broiler burner.

It further comprehends novel oven venting mechanism.

Other novel features of construction will hereinafter appear in the detailed description and the appended claims.

For the purpose of illustrating the invention, I have shown in the accompanying drawings typical embodiments of it, which, in practice, will give satisfactory and reliable results. It is, however, to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and 1936, Serial No. 94,820

my invention is not limited to the exact arrangement and organization of these instrumentalities as herein set forth.

Figure 1 is a sectional elevation of a duel range embodying my invention, the section being taken substantially on line l--| of Figure 2.

Figure 2 is a section on line 2-2 of Figure 1.

Figure 3 is a section on line 3-3 of Figure 2.

Figure 4 is a section on line 4-4 of Figure 2.

Figure 5 is a sectional view on an enlarged scale of damper and vent arrangements.

Figure 6 is a sectional View of another embodiment showing the two dampers connected to operate in unison.

Figure '7 is a transverse section of certain features of the venting mechanism.

Figure 8 is a detail of the dampers control.

Figure 9 is a side elevation of the control seen in Figure 8.

Similar numerals indicate corresponding parts.

Referring to the drawings:-

The range is provided with a fire pot or combustion chamber 1 for a coal burner or an. oil burner, and with an oven 2, which is adapted to be heated in a novel manner by products of combustion from a coal burner or an oil burner in the combustion chamber 1, or by products of combustion from a novel construction and arrangement of a gas burner 3. The oven 2 has a novel construction of a removable bottom 4 which has cast integrally with it spaced tubes or channels 5, which depend from the bottom and extend from the front of the oven to the rear of the oven, at which location they are directed upwardly through the oven bottom to discharge into the oven. The rear upper ends of the tubes. slope upwardly to form baffles 65, extending over the discharge openings 1 to prevent spillovers lodging in the tubes.

The gas burner 3 is preferably substantially U shaped and is located at the bottom of the range. The front arm of the gas burner 3 is preferably mounted in a channel 8 built around the outer edge of the coal flue I8. The two side arms of the burner burn upwardly in channels Ill built integral with the range and extending preferably the entire depth of the oven.

The front arm of the burner supplies heat to the oven bottom preferably in the direction of the series of tubes 5, which carry the heat across the entire depth of the oven and up into the rear of the oven where these flue gases combine with the side flue gases and pass from the oven through oven vents l I.

The side openings l2 in the oven bottom are concealed by apertured strips l3, to which runners M are secured for support of oven racks. These runners are spaced apart for the escape of hot gases into the oven. The open ended tubes 5 preferably run from front to back. I5 is a compartment to receive the conventional top gas burners, and its wall contributes with the top of the oven to form a top coal flue I3, which leads to the side vertical coal flue, H, which latter leads to the bottom coal flue l8, having a baffle l9 around which products of combustion pass to the discharge opening 20 and main discharge flue 2|.

The products of combustion in the coal flue l8 pass across and along the tubes or channels 5. This materially increases the radiating surface of the oven bottom 4.

22 is a lighter opening for the burner 3. 23 are air intakes for the burner 3. 24 is the broiler burner, which, if used, is preferably controlled by the same gas cook 25 which controls the burner 3. The gas cock 25 is a two way valve and has pipes 26 and 21, leading to the burners 24 and 3 respectively.

A rod 28, fixed to the gas cook 25, has an arm 29, having a pin 3|, which rocks lever 30, on its fulcrum 32. The lever 30 has a bifurcated end to engage the stud 33 on the vent slide damper 34, which has openings 35 and controls the oven vent openings I. The vent openings open into an open ended casing 36, open ends of which discharge into the room in which the range is located. The casing 36 has discharge openings 31 to the main discharge flue 2|, and these openings are controlled by a manually actuated damper 38. 39 is a manually controlled damper, controlling the passage of products of combustion from the coal fire directly to the discharge flue 2|.

The oven is always ventilated when gas is used for baking or broiling, since, when the gas cock 25 is turned in one direction for baking or in the opposite direction for broiling, the oven is vented to the room. When coal is used to heat the oven, the oven vent damper is closed.

When using coal, condensation or gases which occur from baking are relieved through the bottom gas flues.

In my present construction the outer side wall and the bottom wall of the coal flue can be insulated.

In my present invention, it is not necessary to supply a removable heat deflecting baffle for operation with either coal or gas fuel.

The arrangement of the dampers is such that the oven can be vented either directly to the room or to the main flue of the range.

In Figure 6, I have shown another embodiment of the invention wherein a stud 33 of the damper 34 is connected with a stud 46 on the damper 38, so that the two dampers are connected to move simultaneously. The vent openings and 31 are thus each opened at the same time and are each closed at the same time by a single control from the gas cock to the dampers. The dampers are moved to open position when the valve is turned to supply fuel to either of the two burners.

In Figures 7 and 8 I have shown the oven vent damper and the main flue vent damper connected for simultaneous operation by a single control such as the valve controlling supply of fuel to the oven burner and the broiler burner.

In Figure 9, I have shown the controlling means which comprises a manually actuated rod 4| connected to the valve and turnable in brackets 42. The forward end of the rod 4| is deflected at an angle, and passes through an opening at one end of a link 43, the opposite end of which is pivoted to one end of a lever 44 having a fixed fulcrum 45. The other end of the lever 44 is connected by a link 46 with the oven vent damper, which is connected to move in unison with the flue vent damper. The parts are shown in Figure 9 in full lines in the closed position of the dampers. If the rod 4| is turned in a clockwise or anti-clockwise direction, the linkage to the oven vent damper is such that both dampers will be moved to their open position.

It will thus be apparent that a movement of the rod controlling the valve to supply fuel to either the oven burner or the broiler burner will effect the movement of both the oven vent damper and the main flue vent damper to their open positions.

When the broiler or oven burner are not operating the vent dampers are closed. This enables one to obtain satisfactory operation when using coal or oil as a fuel.

The oven can be converted to operate with either coal or gas without the use of baffles. Only one damper for the oven vent is necessary, which can be automatically operated by an attachment from the gas cock.

The oven, when heated with gas, is heated by a burner located at the bottom of the range. This gas burner is preferably U shaped and has its side arms burn upwardly in a channel built integrally with the range and extending across the entire depth of the oven and up into the oven. The front arm of the gas burner supplies heat to the oven bottom through a series of spaced tubes preferably running from the front bottom of the oven to the rear of the oven at which location they open into the oven and are concealed by a bafile sloping over the openings to prevent spillovers lodging in the channels. The side flue gases combine with the front flue gases and pass out oven vent openings. The construction is such that, when operating with coal, the air passing through the bottom oven tubes is heated to a temperature considerably higher than ever obtained in ovens when heating with coal, and this tends to increase the speed of heating up of the oven, because hot fresh air is passed into the oven, causing a higher oven bottom temperature. The oven is, therefore, not only heated by radiation but also by convection currents of hot fresh air.

If a broiler burner is employed, its operation is fool proof since it is always vented, and there is always an entrainment of secondary air.

It will now be apparent that I have devised a new and useful range, which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instance, shown and described preferred embodiments thereof which will give in practice satisfactory and reliable results, it is to be understood that these embodiments are susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a range having an oven, a source of heat for said oven, a second source of heat for said oven comprising an oven burner, a broiler burner in the oven, a vent for said oven, a casing having its ends open to the atmosphere and into which said vent opens, a main flue in vented communication with said casing;a damper controlling the vent from the casing to the main flue, a damper normally closing said oven vent, a fuel supply for said burners, a valve controlling said fuel supply and turnable to supply fuel to the oven burner or to the broiler burner, and means connecting the oven vent damper to said valve whereby the oven vent damper is moved to open position when said valve is turned to supply fuel to either of said burners.

2. In a range having an oven, a source of heat for said oven, a second source of heat for said oven comprising an oven burner, a broiler burner in the oven, a vent for said oven, a casing having its ends open to the atmosphere and into which said vent opens, a main flue in vented communication with said casing, a damper controlling the vent from the casing tothe main flue, a damper normally closing said oven vent, a fuel supply for said burners, a valve controlling said fuel supply and turnable to supply fuel to the oven burner or to the broiler burner, means connecting the oven vent damper to said valve whereby the oven vent damper is moved to open position when said valve is turned to supply fuel to either of said burners and means to connect said dampers whereby they are operated to close or open in unison.

FRANK H. SCHNEIDER.

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