US1733187A - Heating system - Google Patents

Description

Oct. 29, 1929. -w. s. EDSON ET AL 1,733,187

HEATING SYSTEM Filed April 2, 1928 -l llllll Patented Oct. 29, 1929 UNITED STATES PATENT OFFICE WALTER S. EIDSON AND FRANK G. EDSON, OF DALLAS, TEXAS; SAID WALTER S. EDSON ASSIGNOR TO SAID FRANK G. EDSON HEATING SYSTEM Application filed April 2, 1928.

This invention relates to new and useful lmprovements in heating systems.

In the usual heating system, such as stoves,

furnaces and radiators, the air is heated by radiation with very little circulation. Consequently the hot air rises to the ceiling and hangs while the remainder ranges in stratas of graduated lower temperatures, down to the coolest at the floor. In some instances air currents have been forced over highly heated surfaces and circulation attempted in this manner.

One object of our invention is to force a circulation of air in such volume and with such rapidity as to efficiently and comfortably heat a room or space without the use of high temperatures, whereby all the air is kept constantly moving, high ceiling temperatures are avoided, wall sweating is eliminated, and a low fuel consumption is had.

' A further object of the invention is to provide a heating system which is also a venti1ating system and is more healthful because a moderate temperature may be employed and hot spots in the room or space eliminated.

Another object of the invention is to provide a heating appliance which may be produced in the form of a piece of furniture, such as a cabinet or a stand, and which will not become excessively hotlike a stove or furnace.

A construction designed to carry out the invention will be hereinafter described, together with other features of the invention.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown and wherein:

, Fig. 1 is a side elevation of a heating cabinet constructed in accordance with the invention,

Fig. 2 is an end elevation of the same,

Fig; 3 is a longitudinal vertical sectional view of the same,

Fig. 4: is a transverse sectional view taken on the line 4:& of Fig. 1,

Fig. 5 is a view partially in plan and partially in section, and V Fig. 6 is a transverse sectional View taken on the line 6--6 of Fig. 1.

Serial No. 266,754.

In the drawings the numeral 10 designates cabinet supported on legs 11 and having a flat top 12 forming a seat. In one end the cabinet has a swinging door 13. The cabinet has a bottom 14; provided with draft ports 15 and an air admitting opening 16.

The interior of the cabinet is divided by a transverse vertical partition 17 into an air intake and heating chamber 18 and an air exhaust or discharge chamber 19. The partition 17 terminates short of the top 12 of the cabinet so as to permit the heated air currents to pass from the chamber 18 to the chamber 19. In one side of the cabinet is a grille 20 located to admit air to the chamber 18.

I/Vithin the chamber 18 is a heating unit 21 comprising upright side plates 22 having air admitting ports 23. Above the ports horizontal bafile plates 24 connect the plates 22, while a perforated top plate 25 is mounted across the upper ends of said side plates. The baflie plates have elongated slots 26 disposed in staggered relation, so that the prodacts of combustion rising from a burner 27,

together with the upwardly flowing air currents are caused to take a circuitous path before escaping through the perforations of the top 25. The burner 27 is connected to a pipe 28 extending through one side of the cabinet for supplying gas or other fuel. Access to the burner is had by swinging the door 13, as is shown in dotted lines in Fig. 3.

The heating unit 21 is spaced from all the Walls of the chamber 18 and does not extend above the partition 17. In the chamber 19 is mounted a suitable electric fan 29, the details of the mounting not being described, as these together with the particular structure ofthe chamber may be varied to suit conditions. The fan is mounted to discharge air through a screened opening 30 in one side wall of the cabinet. To keep the fan motor cool, a flue 31 extending through one side wall of the cabinet, telescopes the motor housing.

To insure successful operation the suction of the fan must not disturb the flame of the burner 27 and for this reason the baffles 24;, the top 25 and the partition 17 are provided. It is important that the heating Hower, the volume of air passing through the heating chamber 1s considerable. The

' supply of air being slightly in excess of the capacity of the fan, causes the air passing through the chamber 18 to absorb heat by contact with the walls of the heating unit and the chamber and admixture with the products of combustion from the burner. This permits the use of a low flame which effects economy in fuel and avoids any dangerous liberation of carbon monoxide gas, so that the use of a venting flue is not necessary. The restricted passage between the top 12 of the cabinet and the upper edge of the partitionl? causes a slight acceleration of the flow of the upper strata of the air from theheating chamber to the fan chamber 19 while the body of the mixture is confined within the heating chamber.

Owing to the circulation of the air through the cabinet and the rapidity wi 11 which it is propelled by the fan, it is not necessary to heat the unit 21 to a high tem perature. In practice the air in the chamber 18 is heated to only a few degrees Faren- .heit above the room temperature desired.

The heated air discharged from the opening 30 is not excessively hot like that coming from a stove, radiator or furnace grille.

As an illustration, if it was desired to maintain a temperatureof 72 degrees Farenheit in the room, the temperature of the air discharged from the exhaust chamber 19 through the opening 30 would not be over 80 degrees Farenheit. By this system about three times the circulation of air is had as is with the usual system; therefore, the air does'not hang at the ceiling and a ventilating feature is added by the constant movement of the air. Nor is it necessary to gen erate excessive heat and radiate this excess to maintain a comfortable temperature.

It is obvious that the system is not confined to the cabinet illustrated. However,

the flame must be protected from undue agi tation by the fan and the burner must be closely coupled with the fan to prevent undue travel of the heated air before its discharge by the fan, in order to avoid heating the air excessivelv and also in order to maintain a low fuel cost.

Various changes in the size and shape of the dillerent parts, as well as modifications and alterations, may be made within the scope of the appended claims.

What we claim is:

1. In a heater, a cabinet having a heating chamber provided with air inlets in its bottom and an air inlet in one side and also provided With an exhaust chamber having an air discharge opening in its side, a heating unit in the heating chamber including a burner and a plurality of bafiles above. the burner, and an electric fan in the exhaust chamber drawing heated air from the heating chamber and discharging it through the opening of the exhaust chamber.

2. In a heater, a cabinet having a heating chamber provided with air inlets in its'bottom and an air inletin one side and also provided with an exhaust chamber having an air discharge opening in its side, a heating unit in the heating chamber including a burner and a plurality of baflles above the burner, an electric fan in the exhaust chamber drawing heated air from the heating chamber'and discharging it through the opening of the exhaust chamber, and a transverse partition 1n the cabinet separating the chambers and proing heated air from the heating chamber, a

flue extending to the exterior of the casing and enclosing the fan motor, and a pivoted closure for the end of the heating chamber next the heating unit therein.

4:. In a heater, a cabinet having a heating chamber provided with air inlets in its bottom and also provided with an exhaust chamber having an air discharge opening, a heating unit disposed abovethe air inlets ofthe heating chamber and including a burner and a plurality of baflles above the burner disposed in communication with said air inlets, a partition at the end of said ballles next the exhaust chamber forming a restricted passage at the top of the cabinet, and an electric fan in the exhaust chamber for drawing heated air and products of combustion from above said partition and discharging it through the opening of the exhaust chamber.

5. In a heater, a casing having an air inlet at its base and an air outlet, a fluid burner within the casing located above the air inlet so that the products of combustion flowing therefrom will mix and commingle' with the air entering and passing through the casing, and mechanically operated means at the air outlet communicating with the burner at the upper portion of the casing for setting up a circulation of air through the casing and discharging it through said outlet, whereby the indrawn air and products of combustion are commingled and discharged as a common heating fluid.

6. In a heater, a casing having an air inlet at its base and an airoutlet, a fluid burner within the casing communicating with the innets of combustion flowing from the burner to permit admixture of air therewith.

7. In a heater, a cabinet having a heating chamber provided with air inlets in its base and one side wall'thereof and also having an exhaust chamber at one side of the heating chamber and provided with an air discharge, a partition intermediate the chambers open only at the top thereof, an electric fan in the exhaust chamber, and a burner in the heating chamber disposed over the air inlet in its base to effect commingling of the products of combustion with the indrawn air.

In testimony whereof we aflix our signatures.

WALTER S. EDSON. FRANK G. EDSON.

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