US1480842A - Radiator for heating and ventilating units - Google Patents

Description

' Jan. 15, 1924.

w. SHURTLEFF RADIATOR FOR HEATING, AND VENTILA'IING UNITS Original Filed March 10 1919 2 Sheets-Sheet 1 Jan. 15, 1924.

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Patented Jan. 15, 1924.

UNITED STATES WILFRED SBI URTLIE2E F, OF MOLINE, ILLINOIS, AS SIGNOR TO MOLINE HEAT, F MOLINE,

PATENT OFFICE.

ILLINOIS, K CORPORATION OF ILLINOIS.

RADIATOR FOR HEATING AND VENTILATING UNITS.

Original application filed March 10, 1919, Serial No. 281,799. Divided and this application filed October 29, 1920. Serial No. 420,332.

To all whom it may concern:

Be it known that I, WILFRED SHURTLEFF, a citizen of the United States, and a resident of Moline, in the county of Rock Island and State of Illinois, have invented a certain new anduseful Improvement in Radiators for Heating and Ventilating Units, of which the following is a full, clear, concise, andexact description, reference being had to the accompanying drawings, forming a part of this specification. My invention relates to heating and ventilating units, particularly to that class in which cold air is circulated by a fan in con- 1 tact with heating apparatus within ahousing to be heated before delivery to the room or building. Such a device has been fully described and illustrated in an original application filed by mein the United States Patent Ofiice on March 10th, 1919, Serial No. 281,799.

Devices of this class usually comprise a housing having an air duct which is connected with an air inlet such as a window opening, the outside air being received and blown through the housing to'be heated before delivery from the device.

The'heating mechanism in these heating and ventilating ,units is usually in the form of a steam radiator. When the unit is connected with the outside for receiving outside air, and especially when the air is cold, the radiator sections nearest the fan or blower outlet will be so cooled that the steam will rapidly condense there and leave cold air pockets, this considerably lowering the efliciency.

The object of my invention is therefore to provide improved radiator construction and arrangement which will insure rapid and uniform circulation of the heating element, such as steam through the radiator sections, thereby eliminating any chance for the formation of cold air pockets where the incoming coldair strikes the radiator.

The above and other features of my invention are clearly shown in the accompanying drawings in which Fig. 1 isa vertical sectional vlew of my improved heating and ventilating unit,

Fig. 2 is a sectional view on line 2,2,

Fi 1, showing the radiator construction an arrangement, and

Fig. 3 is a similar sectional view but showing a modified arrangement. i

The unit shown comprises the rectangular housing 5 having the inlet duct 6 extending from its rear wall to be connected in practice with some inlet for receiving air from the outside of a room or building, such, for example, as a window opening. A floor 7 separates the blower compartment 8 from the heating compartment 9 of the housing, and in the compartment 8 the blower 10 is supported on the. floor 7 and has its outlet 11 extending downwardly through the floor 7 into communication with the compartment 9. In the compartment 9 is the radiator structure R which is mounted on legs .12. The front wall 13 of the heating compartment 9 is set a distance forwardly of the front wall 14 of the compartment 8 so as -to leave the outlet 15 from the heating compartment 9. Between the side walls of the housing 5, and in front of the radiator structure, is the partition 16 which is separated from the floor of the housing by the space i 17, and from the floor 7 by the space or passageway 18. Hinged along the upper edge of the partition '16 is'a damper 19 which may be swung against the abutment 20 to close the passageway 18, or may be swung to any position in the opening 15 between this abutment 20 and the wall 13. When the damper .19 is against the abutment 20 the outlet 15 is closed against the direct outflow of cold air from the blower, and all the air thrown in by the blower must pass downwardly into contact with the radiator structure to be heated, and then will flow through the passageway 17 and through the passageway 21 and outlet 15 into the room. If the damper is swung forwardly against the wall 13 the outlet 15 will be closed against the passageway 21 and all the air delivered by the blower will flow directly through the outlet 15 into the room. Then the damper is set to anyintermediate position, there will be a corresponding proportioning of cold air and heated air.

In the duct 6 a row of louvres are mounted on spindles 23 extending horizontally across the duct, the louvres when swung to substantially vertical position abutting ,with each other at their edges, and the upper and lower edges engaging with the .the frame 27 and forming a continuation thereof is the latch lever 32 which has a downwardly extending hook 33 at its front end. Secured on the door 31 is the arm 34, having at its end the upstanding flange or hook 35, the latch hook 33 being 1n the path of the hook 35. When the door 31 is closed (dotted lines as, Fig. 1) frame 27 will be in its inner position, as shown in full lines, Fig. 1', the louvres being open so that the blower draws in cold air from the outside of the room. Now when the door 31 is opened a distance (full lines, Fig. .1) the hook 35 on the arm 34 will come into engagement with the latch hook 33, and upon further outward movement of the door (dotted lines y, Fig. 1) the frame 27 will be drawn outwardly a sufiicient distance to cause closure of the louvres 22 so that the blower will have to receive from the room through the opening 30. When the door is swung to such open position it will be above the warm air outlet 15 and will serve as a deflector. It has been found that if the door is swung to a certain angle, for example, 30 degrees, it will so deflect the air from the outlet 15 that this air will not be drawn directl back into the device by the blower but t e warm air from the outlet 15 will be thrown-laterally into the room. The warm air from the outlet 15 is deflected laterallyinto the room and thoroughly mixed with the other air therein and this mixed air is then recirculated through the heating device until the temperature in the room is uniform.

If it is desired to stop such recirculation and again connect the device to receive outside air, the door 31 is closed, and during the final closing movement the doorengages with the latch-32 which projects out wardly through the opening 30 and shifts the frame 27 inwardly to cause reopening of the louvres.

If the blower and its driving motor are -to be inspected, repaired, or removed, access arm 34 so that the door can then be swung downwardly the full distance. The abutments 36 and. 37 on .the frame 27 and latch 32 respectively, prevent the latch from rotating the latch in this position so that it may be engaged bythe arm 34 when the door is again closed and the latch raised by engagement of the rounded front face of its hook 33 with the hook 35 of the arm 34.

The blower blows the incoming air down-- wardly against the radiator structure R, and When the outside air inlet'is open and the weather is cold, cold air will be blown against the radiator structure which will be so cooled where the cold air strikes that the steam will be immediately condensed and cold air pockets left in the radiator sections,

and proper circulations and heating will be interfered with. To overcome this, I have devised such improved construction and arrangement of the radiator structure that there will be rapid and uniform circulation therethrou h and the elimination of cold air pockets. Sne form of such improved construction is shown in Fig. 2. The radiator sections 1* are all connected together at the top and bottom with the exception of the last section 1". Steam is supplied to the radiator through pipe 40 and is free to cir culate through all of the sections 1' in advance of the far section 1*, which is closed from the other sections at its upper end. Thus as the steam is condensed by the radiation of heat from the surfaces of the radiator sections, the products of condensation seek the lower levels and travel toward the discharge or return pipe 42. The section I" being dead is therefore cooler than the live sections, and thus. serves to condense the residual steam allowing the air to escape through the vent 41, and the condensation to pass into the discharge pipe 42. In this manner the accumulation of air in the form of pockets in the live sections is avoided and free circulation promoted.

In Fig. 3 a modified arrangement is shown, the condenser section 1* being at the center of the radiator structure to which steam enters from the ends through pipes 43 and leaves through the pipe 44 which is directly below the condenser section 7". The steam can readily circulate through the various sections and the mixed air and steam will be caught in the condenser section 1" and the air escapes through vent 45, the water of condensation flowmg out throu h pipe 44. Thus by a slight change in the below horizontal position and hold radiatorconstruction and arrangement free and uniform circulation is at all times assured through the radiator structure.

I do not desire to be limited to the exact construction, arrangement and operation shown and described, as modifications are possible which would still come within the scope of my invention.

I claim as my invention:

1. A radiator structure comprising a plurality of radiator sections connected by passageways at the top and bottom, one of said sections being disconnected from the others at the to to form a condenser for cooling the mix air and steam.

2. A radiator structure comprising a plurality of sections connected together for the rapid circulation of hot steam therethrough, one of said radiator sections being disconnected at its top from the others to form a dead space for the condensation for separating the condensed steam and air, said section having an air vent.

In witness whereof, I hereunto subscribe my naine this 26 da of October, A. D. 1920.

RED SHURTLEFF.

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