US2190410A

US2190410A - Air furnace

Info

Publication number: US2190410A
Application number: US233102A
Authority: US
Inventors: Mallory Clifton
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-10-03
Filing date: 1938-10-03
Publication date: 1940-02-13
Anticipated expiration: 1957-02-13

Description

C. MALLoRY- AIR FURNACE` Feb. 13, 1940.

Filed oct. 5, 19:58

5 SheepKs-Sheet '1 .@@CJ Vy@ 0@ QJ @D Feb. 13, 1940.

C. MALLORY AIR FURNACE Filed Oct. 3. 1938 3 Sheets-Sheet 2 Patented Feb. 13, 1940 UNITED 4STATES PATENT OFFICE 4 Claims.

This invention appertains to new and useful improvements in air heating plants and more particularly to an air furnace. y

The principal object of the present invention is I to provide an air'furnace constructed in such a manner as to have a higher degree of etllciency than furnaces now generally employed' in heating plants.

Another important object of the invention is II to provide an air furnace for air heating systems wherein the heat can be regulated at the furnace in a desirable and convenient manner.

These and other important objects and advantages of the invention will become apparent to the Il reader of the following specification.

In the drawings:

Figure 1 represents a side elevational view of the furnace.

Figure 2 is a vertical sectional view.

l Figure 3 is a section on line 3--3 of Figure 1.

Figure 4 is a. sectional view takensubstantiallyy on line 4-4 of Figure 2.

Figure 5 is a sectional view taken substantially on line 5'5 of Figure 2.

I Referring to the drawings wherein like numer als designate like parts, lt can be seen that numeral 5 generally refers to the shell which consists of the side walls 8 6, the front wall 1 and the rear wall 8.

I In the shell 5 are the vertically disposed internal shells 9 and lli, these shells being spaced from each other and from the end and side walls, so that air is in contact with all external surfaces thereof.

35 The upper opposed portions of the shells 9 and Il are open but normally closed by the headers I I and I 2 between which extend the flue tubes I3. There isl preferably a multiplicity of these tubes so that air passing upwardly in the direction of 40 the arrows must follow a tortuous path through the spaces between the tubes.

In the lower portion of the shell 9 is the flrebox I4, the grate I5 and the ashpit I5. The ashpit I6 has the door I1 while the rebox I4 has the 45 fuel door Il. In the upper portion of the shell 9 is the heat chamber I9 and the upper portion of this has the door 20.

The top of the shell 5 is provided with the hood ZI which has a multiplicity of openings therein 5o from which pipes extend to various parts of a house or other building.

Extending through the rear wall 8 is the iiue pipe 23. Extending into the lower portion of the shell 5 at the rear wall 3 is the air inlet conduit 5 24 which extends to the shell III. A drawer 26 has its outer end wall disposed directly under the side wall of the shell I0, through which the drawer is movable. The drawer has a handle 26a and is slidable on the guide or rib 21. A closure plate 26 having a handle 28 is provided for the drawer 5 opening.

One side wall 6 is also provided with the door 28 which can be opened to permit access to the water-containing pan 29 which serves as a humidiiier. l

The lower portionvof the side of the shell I0 opposed to the shell 9 has the opening 30 therein within which is mounted the motor-driven fan 3 I. This fan serves to pull air from the pipe 24 and force the same upwardly over the humidifying pan l 29 and upwardly through the heat tubes I3 where the air is thoroughly heated and passes to the hood 2l.

As shown in Figure 2, the upper end of the baille plate is hingedly connected as at 32 to 20 the top of the shell III and a. hand lever 33 connects at its inner end pivotally as at 34 to the lower portion of the baffle and extends through the wall of the shell I0 and the rear 'wall 8 of the shell 5. This hand lever 33 has ratchet teeth 35 25 for engagement with the edge portions of the lastmentioned wall at the openings 36. Thus with the use of this hand lever 33, the baille plate 25 can be held in any desired adjusted position for retarding or permitting free passage of the products of combustion from the heat tube I3 to the flue 23.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and ma- 35 terials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the claimed as new is:

l. A heating furnace comprising an external shell, a pair of internal shells mounted within the external shell, a fire box in one of the shells, a vertically mounted baffle plate in the other invention what is shell, said baille plate being hingedly secured at 5v its upper end to the upper portion of the corresponding shell, a plurality of products of cornbustion conveying tubes extending from the re box containing shell to the baffle plate containing shell, the lower free end portion of the bafile o plate depending in the corresponding internal shell to a point below the lowermost products of combustion conveying tubes, said baffle plate containing shell having an outlet at its upper portion and at the opposite side of the baille plate M ing shell, the lower free end portion of the b'fe plate depending in the corresponding internal shell to a point below the lowermost productsv of combustion conveying tubes, said bale plate containing shell having an outlet'l at its upper portion and at the opposite side of the baille plate fromkthe said products .of combustion conveying tubes, and a. drawer slidable through an opening in the outer shell and into the baile'plate con'- taining internal shell and forming.v the bottom l for the last-mentioned shell.

3. Aheating furnace coinprising an external shell, a pair of internal shells mounted within the external shell, aiire box in one of the shells,

a vertically mounted baiile plate in the other s hell, said baille` plate being hingedly secured at its upper end to the upper portion of the correspondingshell, a plurality of products of combustion conveying tubes extending from the re box containing shell to the baille plate containing shell, the lower free end portion of the baille plate depending in the corresponding internal shell to a point below the lowermost products of combustion conveying tub's, said baille plate containing shell having an outlet at its upper por v tion and at the opposite side of the baille plate from the said products of combustion conveying tubes, hot air outlets at the top of the outer shell, and an air inlet to the space below the products of combustion conveying tubes.

4. A heating furnace comprising an external shell, ra pair of internal shells mounted within the external shell, a re box in one of the shells, a vertically mounted baille plate in the other shell, said baille plate 4being hingedly secured at its upper end to the upper portion of the corre- 'sponding shell, a, plurality of products of combustion conveying tubes extending from the're box containing shell to the baile plate containing shell, the lower free end portion of the baille plate depending in the corresponding internal shell to a point below the lowermost products of combustion conveying tubes, said baille plate con-V taining shell havingan outlet at its upper portion and attthe oppositev sideof the baille plate from they said productsl of combustionl conveying tubes, an -elongated member disposed through openings" he outer shell .and the baille plate containing shell provided' with teeth .engageable with theffedges .of 'the shells through which it passes, andi af'pivotal connection between the elongated meinber .andthe lower portion of they bale plate.

^ LCLIFTON MAHDRX.