US1108388A

US1108388A - Hot-air furnace.

Info

Publication number: US1108388A
Application number: US45084408A
Authority: US
Inventors: Allan O'loughlin
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-08-29
Filing date: 1908-08-29
Publication date: 1914-08-25
Anticipated expiration: 1931-08-25

Description

A. OLOUGHLIN,

HOT m FURNAGE.

APPLICATION lFILI-l2() AUG. Z9, 190B. n jl @&@@m l Patente Aug. 25, 11.9%,

3 SHEETS-SHEET 3.

WMM/Iba@ i idosgsss.

To all whom it' may concern.'

' UNITED srrarns A,iiiiirniair onirica.

aman jofnouenmn', y or sr. rant, invriinnso'ra.

noir-ain nommen Specication of Letters ratent.Y

Patented Aug.' 25, 1914.

y application magi augustin, lacs. seminaesasti.

Be it known that ll, ALLAN Ulliopeimn, a subject of the King of Grreat Britain and llrelandf, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain `.new and useful improve ments in Hot-Air Furnaces, of which ythey following is a specification.

My invention relates to improvements in hot air heating furnaces, its object being to provide a furnace by which the air from the rooms may be readily purified, heated and returned to the room..v y

'llo this end my invention lconsists in the features of construction, combination and arrangement of parts hereinafter larly described and claimed. 4 A.

ln the accompanyingA drawings forming part of this specification, Figure 1 is a vertical section through the middle of the furnace on line w-fw of Fig. 4, Fig. 2 is a topview partly broken away,4 Fig. 3 is a vertical section through the cap, Fig. 4 is a frag- 1n the drawings A represents the ash pit,

B the fire box or pot and' C the smoke travelof the furnace. The smoke travel is snpported upon the dome 2 and runs circularly around it. It communicates with the Icombustion chamber through a passage 3, and

has a smoke arm 4 through which ythe smoke 4 is discharged into' the chimney. I The ash pit is supported above the bottom of the furnace structure b Walls 5 and 6. The wall 6 constitutes the inner Wall of the water receptacle 7 which extends around on three sides of the furnace as shown in Fig. 7. The wall 6 is formed at the top with an outwardly flared: flange 8 which extends up beyond the bottom of the ash pit in order to carry and direct the current of air which enters the chamber 11 through the inlet pipe 10 up above the top fof the water receptacle and above the lower end of the artition wall 9 as hereinafter pointed out. he side wall 6 is formed near its point of union with the flange 8 withV openings through which the air passes up between the Harige and wall 13 of the ash pit into the flue or chamber 12. The openings between the flange 8 -outer` shell 17 of the furnace.

' and the wall 13 of the ash pit, as shown in Fig. 1; thus constitute ports leadingffrom f below the ash pit to the chamber 12. ./f

4 ,'lhe receptacle 7 is formed at its top with cross bars 14 upon which is supported a curved strip 15 forming a support for the lower end of the'partition wall 9. 'lhe partition wall 9 is interspaced from the hre bon and combustion chamber to constitute the intermediate chamber 12 and is secured at its front to the outwardly Haring side walls of the front casting 16 of the furnace.

Also Secura-icl'v torlthe; front casting 16 is the Ilihis is secured to or rests upon the top of the outer wall of the receptacle 7 and is interspaced from the partition wall 9to constitute an ntermediate chamber or Hue 24.

rlhe cap 18 of the furnace fits over and rests upon the outer shell 17 and the partition 9 as shown in Fig. 1. The cap carries .on itslunderside a number yof radial partitions 19 which extend downwardly to rest upon the smoke travel C. Thus the hot air chamber above the dome is divided by these radial partitions into a plurality of separate chambers or passages. Above each chamber the cap is formed with an outlet port 20 4from which a pipe may lead to the room to `be heated. The top of the cap is also formed with a plurality of ports 22 which communicate with the chamber 24 between the walls 9 and 17. t

ln use the fresh air enters through the pipe 10 and passes thence through the chamber 11 and into the chamber 12 between the Wall 13 of the {ire-pot and the partition 9.

vIt becomes heated by reason of its contact with, and proximity to, the side wall of the fire-pot, and passes up around the smoker- `travel into one of the segmental chambers of the cap, and thence through outlet port 20. After it has done its Work and lost `part of its heat, it passes from the room y down through the return port 22 into the chamber 24 between the partition 9 and the outer shell 17 of the furnace. Being colder than the air inthe chamber 12, it will pass to the bottom of the chamber or Hue 24, and around under the bottom of the partition 9 and up into the chamber 12 where it mingles with the freshly entering air and ascends again to the rooms to be heated. In passing under the partition 9, it is brought into contact with the water in the receptacle. This removes the dust and moistens the air. The

old air may be drawn from the rooms and furnace through a dampered pipe leading from the chamber 24 into the outside air.

I claim:

1'. A furnace comprising a re pot, an inner shell outside the re pot and spaced apart therefrom to form a hot air chamber, an outer shell extending around the inner shell and spaced apart therefrom to form a return chamber for the air', the hot air. chamber having an inlet port near the bottom for the entrance of fresh air and an outlet at the top for the discharge of heated air to the rooms to be heated, and the return chamber having an inlet port at the top for the return of air from the rooms, and a Water receptacle extending around under, the bottoms of both of said chambers, the 4Wall constituting the inner shell terminating short of the top of the-Water receptacle s0 as to permit the returning air in the outer chamber to pass between the loWer end of the shell and the `top of the receptacle to the hot-air chamber.

2. A furnace comprising ag'fire box, interspaced concentric Walls arbund the lire box forming inner and outer chambers, .said chambers communicating at their lower ends and the inner chamber having an opening near the bottom and on the side adjacent to the fire pot for the entrance of air to be heated andl the outer chamber having an inlet opening at the top for the return of air, a Water receptacle beloW the loWer endsof said chambers and in communication therewith, and a cap tting over the'top of the inner chamber, said cap being formed on its underside With a plurality of separated passages and With anl outlet port leading from each of said passages and adapted to receive a pipe.

`llntestimony.whereof I aiix my signature in presence of tWo Witnesses.

ALLAN OLOUGHLIN.

Witnesses:

HAT'rrc SMITH,

/ ARTHUR P. LOTHROB.`