US1248144A - Furnace. - Google Patents

Description

F. M. rvmmsow. FURNACE.

AFPLICATIOH FILED MAR. 20. 3911- 1 fikfi E. @lw Patented Nov. 27, MR

2 SHEETS-SHEET I.

F. M. MATTESON.

v FURNACE.

APPLICATION FILED MAN- o Patented Nov. 27, 1917,

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FRANCIS M. MATTESON, 0F JACKSON, MICHIGAN.

FURNACE.

Specification of Letters Patent. Patented Nmv. 2?, T911 "3'...

Application filed March 20, 1917. se ialivo. 156,125.

To all whom it may concern:

Be it known that I, FRANoIs M. MATTE- SON, a citizen of the United States, residing at Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Furnaces, of which the following is a specification.

This invention relates to hot air furnaces and has for its object the provision of simple, is inexpensive and. efficient means whereby the heat generated in the furnace may be more advantageously utilized than with devices heretofore known to me. y

The invention is illustrated in the accompanying drawings and consists in certain novel features which will be particularly pointed out in the claims following the description.

In the drawings:

Figure 1 is a perspective view of a furnace embodying my improvements, the outer casing being omitted;

Fig. 2 is a vertical transverse section through the furnace and the casing, the

lower portion of the furnace body, together with the feeding pouchor pocket and the ash pit pouch or pocket, being shown in elevation.

The lower portion or body 1 of the furnace is preferably of cylindrical form and may be of any desired dimensions. In the upper end of the body 1, I fit a cup ring 2 which is constructed with an intermediate packing or calking being provided to prevent leakage in the joint. The flanges 4 and 5 should fit snugly to the lower end of the radiator and may be riveted or bolted thereto. The provision of these flanges pro- Videsa firm support for the radiator and the elbows in'place.

also maintains the circular shape of the same. The upper end of the radiator re ceives a head 8 which will preferably be cast and is formed with a plurality of openings 9 defined by depending annular ribs or flanges 10, as clearly shown in Fig. 2. The head is also constructed with an annular depending, flange 11 which fits snugly within the upper end of the radiator and thereby serves to maintain the proper shape of the same, the radiator being secured to the said flange by rivets or bolts, as will be readily understood. Near the lower end of the radiator, I provide the same with a plurality of openings, corresponding in number with the openings in the head 8, and to the inner surface of the radiator, I secure the lower ends" of elbows 12 which have their upper ends fitting within the openings defined by the depending ribs 10, as shown in Fig. 2. The lower ends of these elbows are providedwith annular flanges 13 through which rivets or bolts are inserted to secure To the outer side of the radiator 6, by the same bolts or rivets which secu'rethe elbows 12 thereto, I secure air-feeding tubes 14 which extend downwardly between thefurnace and the casing 15 to points near the lower end of the furnace and the casing and have their lower ex tremities open, as shown at 16. The casing 15 is set up around the furnace and the said airfeeding tubes and is constructed and arranged at its lower ends in any desired manner to admit fresh air to the space between itself and the furnace. From the upper end of the casing flues 17 provided in any desired or necessary number, lead to different parts of the building which is to be heated.

The body 1 of the furnace is provided interiorly with a grate whereby it is divided into a fire box and an. ash pit and to the outer side of the body I secure chutes 18 and 19 communicating, respectively, with the fire box and the ash pit. The grate may be of any desired form and equipped with any convenient form of mechanism for agitating it to precipitate the ashes from the 18 and 19 are securely bolted to the body 1 of the furnace and project laterally therefrom so that their open ends will register with the openings-in the casing. Upon the outer end of each chute is hinged a door 20 and upon one side of each chute is formed a lug or keeper 21 which projectsthrough the casing and beyond the outer end of the chute to be engaged by a latch 22 carried by the door. I The chutes l8 and 19 are dupli-- cates in construction .and'the casing-extends over and is bolted to the outer ends. of the,

chutes, the door closing against the casing and the casing being formedwith door openings corresponding to the open outer ends of the chutes.

Theinterior of the radiator 6isunob-. structed exceptfor the elbows 12, and the smoke pipe23 leads la-terallyfrom the lower; end; of the radiator through the casing and.

extends to thechimney, as will be. readily understood, To, aid in holding the air feed ing, tubes LL against dropping, I, may provide bolts or other projections: 24 thereon. at their upper ends and draw a wire 25 taut around them.

It, isthought the operation and advantages ofmy improved construction will be readily understood. The fire is kindled in. the fire box in the. usual manner and the smoke and other products. of combustion, together with the heat arising from the fire, will pass upwardly intothe radiator and will fillthe same so as to circulate all around the elbows and, consequently, raise.

the temperature of thesame, the smoke and other, waste products eventually escaping through the smoke pipe 23. The elbows 12 will be quickly heated by the hot air arising, from the. fire. and, consequently, theair which may bewithin said elbows will be set in circulation andwill pass from the upper ends thereof into thev space between the top of the radiator and the top of,the. casing and thence enter the lines 17. Cold air from the lower portion of the space between the casing and the, furnace will enter the lower ends, of the feeding tubes l4 and will rise through the same and enter the elbows 12 and take the place ofthe air passing from said elbows and as the. said feeding tubes 14: willbe exposed to theheat radiated bythei furnace body, they will be quickly heated and, consequently, the air passing through said tubes andthe elbows 12 will be raised to a high temperature with a sl ght consumptlon of fuel andwithout interfering in any way with the heating of-{the air in the spaeebetween the casing andthe furnace in the usual manner. v The rad ator 6LWlll also be ra sedin temperature by the hot air whichwill rise-into and be caught therebyso that heat will be radiated f o s id 1 member a t L011, he .air. Z rising;

'manufactured and applied to furnacesaat a low cost. By mounting the doors to the feeding chute and the ash chute directly upon said chutes, Ieliminatejointswliiclu;

with furnacesagnow; commonly constructed, form openingswhich permit dust from the ash pit to escape unnecessarily into the. fur-, nace'room and also permit. air: tofenter. the firebox when such. action 'is not desired.

Moreover, the provision ofyseparate door frames does not permitthe use of such strong latches as may. berused in my, device andthe latcharetaining lugs...o n the door frames. are exceedinglyapt to be broken by carelessness in. opening. and closing the doors. 7 Q

lllhile I prefer. to construct. the body, of the radiator ofsheet. metal because. suchx material; je -inexpensive, light; and. quickly a heated, other material may. be used. and,

the radiator may be constructed of, cast metal. It is to be noted that thearadiator with the elbows 1 2;and. the head 8 maybe assembled, andthe parts rigidly secured together and the assembled structure then. placedin position inuthe. cup, ring l, .and

this facility of; assembling'the parts and their lacing the assembled partszon the, lower sectionor bodyof theifurnace ex;- pediteszthesettingup .of the/furnace at the place where it is to be used. mg a suitable TQClllC1l1g I'11flg,tO-. fib111 the upper end of the furnace body, theqradiator.

maybe applied-to any furnace.

Having thus described v the invention, what isclaimed as new. is

1. The combination-with a furnacefire pot, of a sheet metalshell fitted to theupperend of said :fire-pot, a. head secured: in the upper end. of said shell, elbowshaying their upper.

ends secured! in .and. opening; through fsaid By provide headand, provided vat their lower ends with annular-fianges. secured; to the sides of the.

shell around. openings thereiirnear the lower 7 end. of the same, air-feeding tubes provided at theirupper. eiiclsavith annular; flanges,

secured to theshell around the same open: ing and coincident 2 with ztllfi .lower ends. of

said elbowsgand a connection; between theupperend's of said air-feeding tubes externalt athe shell. y

2. The. combination with a ,furnace fire pot,,of.;.a shell-fitted to and supported by the upper-endof the fire :pot, a head secured in the upper end of the shell a plurality of elbows having their upper ends fitted in and opening through said head and their lower ends secured to the shell near the 5 lower end of the same, a plurality of airfeeding tubes secured externally to the shell and communicating directly with the lower ends of said elbows, projections on the upper ends of said air-feeding tubes, and a connection between the said tubes passing around the said projections.

In testimony whereof I aifix my signature.

FRANCIS M. MATTESON. [L. s]

Copies of this patent may be obtained for five cents each, by addressing the Gommiesioner out Patents, Washington, D. G.

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