US2738785A - Air heating furnace - Google Patents

Description

INVENTORS 5 Sheets-Sheet l T. T. M LANE ET AL AIR HEATING FURNACE Mm'h 20, 1956 Filed March 27, 1953 March 20,

Filed Mal ch T. T. M LANE ET AL AIR HEATING FURNACE 3 Sheets-Sheet 2 AIR HEATING FURNACE Filed March 27. 1955 5 Sheets-Sheet 3 FIZo TC: I200 MS F Z y A v 5 WW M J m M i W M m? i WW5 1 52M Nu/ MJJY 7,. f ma jlfi Z/ v 4 W Z r T/ J A. M I. 2 b 4 v. MN 4 4 A no 0 P v 4\ 'FO CE LLAR United States Patent m HEATING FURNACE Thomas Timothy McLane, Paul Robert McLane, and James Alfred McLane, Norwood, Ohio Application March 27, 1953, Serial No. 345,118

2. Claims. (Cl. 126-110) This invention relates to 'furnaceconstmctions.

It is an objectof the present invention to provide a be used for air conditioning during the summer without requiring any refrigerants, merely ing element therein. Other objects of the present invention are to provide ,a

by turning off the heatfurnace construction bearing the above objects in mind which is of simple construction, inexpensive to manufacture, has a minimum number of parts, is easy to install and efficient in operation.

For other objects and a better understanding of the invention, reference may be had to the following detailed description taken in connectcion with the accompanying drawings, in which:

Figure l is a fragmentary side elevational view of a house showing the present invention incorporated therein;

Fig. 2 is a perspective view of the present invention, shown partly broken away to show the interior thereof;

Fig. 3 is a vertical sectional view through the furnace construction;

Fig. 4 is a vertical sectional view taken along the line 4-4 of Fig. 3;

Fig. 5 is a transverse sectional view line 5-5 of Fig. 3;

Fig. 6 is a vertical sectional view taken along the line 6-6 of Fig. 3;

Fig 7 is a transverse sectional view taken along the line 7-7 of Fig. 3;

Fig. 8 is an end elevational view line 8-8 of Fig. 3;

Fig. 9 is an enlarged fragmentary side elevational view of the chimney blower, shown partly broken away, and

Fig. 10 is a vertical sectional view taken along the line 10-10 of Fig. 4.

Referring now more in detail to the drawing, in which similar reference numerals identify corresponding parts throughout the several views, there is shown a furnace construction, referred to collectively as 10, and including a hollow sheet metal housing 11, substantially as illustrated.

The housing 11 is substantially rectangular and is provided with inner and outer top walls 12 and 13, respectively separated by a layer of asbestos 14, the top of the housing being secured to the rafters 15 by means of screws 16 through the ceiling of the basement or cellar, as shown in Fig. 3.

A vertical partition 17 provides the housing into two taken along the looking along the 2 equal compartments. The bottom wall 18 is provided with an opening 19 around which is fixedly supported a cylindrical member 20 having a cover plate 21, the member 20 being secured to the bottom wall 18 by means of a flange 22. The cover plate 21 at the center thereof is integrally formed with an open neck 23 around which is positioned a cylindrical duct 24, as shown in Fig. 3.

A gas burner25 is suitably mounted below opening 19 for a purpose to hereinafter become clear. The partition 17 is provided with an opening 26 in which is positioned a cylindrical duct 27 having a closed end 28 and an open end 29 connected to the duct 24 by means of an elbow 30. The partition 17 below. opening 26 is provided with a large opening receiving screen 31 of blower 32, the blower 32 being driven by motor 33.

A water trap 34 is positioned'adjacent motor 33 and communicates with admin in the basement floor, not shown, by means of an outlet pipe 35, the top of trap 34 being connect'ed ,to the outer end of cylinder 27 by means of an inlet pipe 36. The. top of housing 11 is provided with an opening 37 which communicates with the upper rooms of the house by means of a duct 38, the duct 38 being secured in position by flanges 39 and 40.

The sides 41 and 42 are provided with laterally aligned openings directly below the opening 37 which communicatewiththe bottom of the cellar by means of ducts 43 and 44 respectively.

A second horizontal, cylindrical duct 45 is secured at one end to partition 17 above cylindrical duct 27 by means of a fitting 46, the other end of duct 45 extending upwardly at right angles through the top of housing 11 in a continuation 47 and being connected to the outside house pipe 48 by means of elbow 49.

The ducts 27 and 45 are interconnected by staggered tubing 50.

Cold air from the bottom of the rooms above is conducted to the top of housing 11 adjacent duct 45 by means of adapter 51 and duct 52.

The hot air passing upwardly from duct 45 through continuation 47 and into outside pipe 48 is drawn upwardly into the atmosphere by means of a propeller 53 rotatively mounted in the top of pipe 48 by means of a bracket 54 and a rotatable shaft 55 (see Fig. 9), the plate 53 being driven by a motor 56 mounted within casing 57 secured alongside the pipe 48 by means of straps 58. The casing 57 and p'pe 48 are provided with aligned openings which receive a belt 59 interconnecting pulley 60 mounted on a drive shaft 61of motor 56 and pulley 62 mounted on propeller 53.

In operation, cold air from the bottom of the basement is drawn upwardly into the combustion chamber 20 and heated by means of the burner 25, the air thus heated rising upwardly through duct 24 into horizontal duct 27 where it passes upwardly through coils 50 into horizontal duct 45 and continuing upwardly to outside pipe 48 where it is drawn ofi into the atmosphere by propeller 53. Any moisture condensing in duct 27 is carried to trap 34 where it is delivered to the cellar drain by means of pipe 35.

Cold air from the rooms above is also carried down through duct 52 into housing 11 downwardly towards blower 32, this air being preheated as it passes coils 50. This air is drawn through screen 31 where it is filtered by blower 32 to pass upwardly around combustion chamber 20 where it is preheated, and continuing upwardly to duct 38 where it is recycled to the rooms above. This air also is conveyed through ducts 43 and 44 to the bottom of the cellar to heat the latter.

A thermostat control 63 regulates the temperature of the circulating air by controlling a valve 64 at the inlet to burner 25.

The layer of asbestos 14 prevents the heat from being transferred through the top of housing 11 except through ducts 38 and 47.

It will be apparent that during the summer the above described construction can be utilized as an air conditioning unit merely by turning off the burner 25 and continuing operation of blower 32, it being unnecessary to include any refrigerants.

While various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of the present invention, as defined by the appended claims.

Having thus disclosed the nature of our invention, what is claimed is:

1. A furnace construction comprising a closed housing adapted to be mounted in a basement, a vertical partition dividing said housing into two compartments, one of said compartments at the bottom thereof having an opening, a combustion chamber mounted on the bottom of said compartment surrounding said opening, said combustion chamber being open at the bottom and having a restricted opening near the top thereof, heating means disposed below said opening and said combustion chamber, a substantially horizontal duct passing through said partition above said combustion chamber, said duct being closed at one end and connected at the other to said restricted opening in the top of said combustion chamber by means of a conduit extending upwardly from the said last mentioned opening, a second substantially horizontal duct secured at one end to said vertical partition above said first horizontal duct, the other end of said second horizontal duct continuing upwardly through the top of said housing, coils connecting said first and second horizontal ducts, said housing near the top thereof having an opening near said second horizontal duct communicating with the other of said compartments, said partition near the lower end thereof having an opening establishing communication between said two compartments, said compartment having said combustion chamber at the top thereof having an opening, and blower means operatively associated with said partition opening and adapted to draw air into the opening in said second mentioned compartment and circulate it downwardly through said second mentioned compartment, through said partition opening, upwardly through said first mentioned compartment, and outwardly through said top opening thereof.

2. A furnace construction according to claim 1, including a water trap adapted to connect With a basement drain, said water trap being connected to the end of said first horizontal duct remote from said combustion chamber.

References Cited in the file of this patent UNITED STATES PATENTS 467,747 Dornfelf Ian. 26, 1892 980,471 Zenke' Ian. 3, 1911 2,013,237 Funk Sept. 3, 1935 2,121,108 Tuck June 21, 1938 2,123,163 Birkenbeuel July 12, 1938 2,147,854 Mueller Feb. 21, 1939 2,267,905 Frantz Dec. 30, 1941 2,333,602 Van Almelo Nov. 2, 1943 2,363,742 Norton Nov. 28, 1944 2,428,544 Breidert Oct. 7, 1947 2,452,329 Schwantes Oct. 26, 1948 2,576,719 Koser Nov. 27, 1951 2,582,071 Schultz Ian. 8, 1952

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