US 1998390 A
Description (OCR text may contain errors)
April 16, 1935. L. E. SCHUMACHER FURNACE HEAT DISTRIBUTING DEVICE Filed March 20; 1954 2 Sheets-Sheet 1 I .10 1' .ZZ-w-JQ 12 lll] IHIW ill.
April 16, 1935. 1.. E. 'SCHUMACHER 1,998,390
FURNACE HEAT DISTRIBUTING DEVICE File-dMarch 20, 1934 2 Sheets-Sheet 2 ltturnrys.
Patented Apr, 16, 1935 STARS ere 3 Claims.
For the sake of illustration, it might be stated that in hot air furnaces, the hot air in passing upwardly, takes a swirling motion, with the result that there are cool air spots in the furnace, particularly within the very center of the furnace.
It is, therefore, the primary object of the invention to provide means which will break up the spiral formation of the hot air passing from the furnace, and direct the hot air to the sides of the furnace, dissipating any cold spots which may occur.
Another object of the invention is to provide means adapted to eliminate back pressure caused by cold air entering the hot air spaces of hot air furnaces.
A still further object of the invention is to increase the heating surfaces of hot air furnaces, thereby increasing the efficiency of the furnaces, and at the same time decreasing the fuel consumption to a minimum.
With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.
Referring to the drawings:
Figure 1 is a fragmental vertical sectional view through a hot air furnace equipped with a device constructed in accordance with the invention.
Figure 2 is a sectional view taken on line 2-2 of Figure 1. v
Figure 3 is a fragmental bottom plan view of the invention.
Figure 4 is a sectional View taken on line 4 l of Figure 2.
Figure 5 is an enlarged detail view illustrating the manner of connecting the sections of the device.
Referring to the drawings in detail, the reference character 5 designates the heat dome of a furnace which connects with the radiator 5 through the pipe 6. The reference character 6 designates the inner wall of the furnace casing.
The reference character I designates the upper portion of the heating drum of the furnace from which the pipes 3 lead, the pipes 8 carrying the hot air to the various rooms to be heated.
The hot air distributing device, constituting the subject matter of the invention, is indicated generally by the reference character 9, and comprises a plurality of sections joined at their ends 'tion, are rods H and i2,
and providing a body portion of a construction to fit within a furnace casing.
Each of these sections comprises a plurality of inverted channel members ill, constructed preferably of copper, due to the increased heat conductivity of this metal; however, it is to be understood that these members H] may be made of any suitable, material.
As clearly shown by the drawings, each of these channel members is formed by bending a length of sheet metal material into the formation of a channel, the sides of the channel members diverging towards the outer ends thereof, so that the hot air will have an unobstructed passage throughout the lengths of the channel members. These channel members are also higher at their outer ends than at their inner ends, so that the circulation of the hot 'air through the channel members will be increased.
Connecting the channel members of each seethe rods being provided with heads 53 at their ends, which heads are threaded on the rods, so that the heads may be readily removed, should it be desired to remove the channel members !ii; to repair or replace them.
Tubular spacers indicated at M are mounted on the rods, and are disposed between the channel members i t, holding the channel members in proper spaced relation with respect to each other,
at all times.
The tubular spacers it near the inner ends of the inverted channel members iii are shorter than the tubular spacers M disposed near the outer ends thereof, whereby the inner ends of the inverted channel members it are closer together than the outer ends of adjacent channel members, providing greater spaces near the wall 6 of the furnace, to permit the hot air to pass therebetween.
A bolt indicatedby the reference character I5 extends through openings in the heads 13 and secures the sections of the body portion together. This means of securing the ends of the sections also permits the device to be readily and easily 14 1 positioned within a furnace structure.
It will of course be understood that this device is positioned on the dome of a furnace, the open sides of the channels being disposed downwardly catching the hot air and relatively cold air passing upwardly from the furnace dome, and directing the air laterally towards the outer ends of the channel members. A certain amount of hot air will pass upwardly over the sides of the channel members, dissipating cold air spots that usually are present in hot air furnaces between the dome and wall of the furnace.
Having thus described the invention, what is claimed is:
1. The combination with the radiator Within a hot air furnace, of a hot air distributing device comprising a plurality of channel members radiating from a common center, the open sides of the channel members being disposed downwardly and adapted to catch hot air passing upwardly from the radiator, and said channel members being spaced apart allowing hot air to pass upwardly over the sides of the channel members.
2. The combination with the radiator within a hot air frunace, of a hot air distributing device comprising a plurality of channel members radiating from a common center and having their open sides exposed to hot air passing upwardly from the radiator, the walls of the channel members converging towards the inner ends of the channel bars, said channel members being inclined upwardly towards the outer ends thereof whereby hot air is directed to the outer ends of the channel bars, and means for securing the channel members in spaced relation with each other.
3. The combination with the i n a furnace, of a hot air distributing device positioned on the radiator and comprising a plurality of channel members radiating from a common center and having open sides disposed downwardly to receive hot air passing upwardly from the radiator, and said channel members being inclined upwardly towards the outer ends thereof and adapted to direct hot air from the radiator to the inner wall of the furnace casing, and said channel members being spaced apart allowing hot air topass upwardly over the sides of the channel members.
LLOYD E. SCHUMACHER.