US1738222A - Heater - Google Patents

Description

Dec. 3, 1929. H. c. BAKER ET AL HEATER Filed Deo- 1924 2 Sheets-Sheet 1 i/M MAM K4 1;

RE M A T TEIINIY Dec. 3, 1929.

H. C. BAKER ET AL HEATER u a n n I u n a INVEN Cl \5 TIEIRN IY Patented Dec. 3, i923 usir STATES PATENT OFFICE HEATER- Application filed December This invention relates to heaters, furnaces or stoves, of the hot air type.

This invention has utility when incorporated in a magazine type of solid fuel heater.

Referring to the d rawiugs Fig. 1 is a front el vation of an installation in accordance with the invention as incorporated in a garage heater;

Fig. 2 is a plan view. with parts broken away. of the heater of Fig. 1.;

Fig. 3 is a view in cross-seetiom with parts broken away. on an enlarged scale from the showing in Fig. 2; and

Fig. 4 is an enlarged view of the heater of Fig. 1, in front ele *ation, with parts broken away.

Spider 1 has central floor portion 2 provided with surrounding seat 3. Mounted 20 within the seat 3 and having this floor 2 as its bottom is ash pit 4 terminating at its upper portion in seat 5. Engaging this seat 5 is seat 6 of fire pot 7 terminating in upwardly open seat 3 into which nests seat 9 of lower combustion chamber section 10. This lower combustion chamber section 10 upwardly terminates in seat 11 for receiving seat 12 of upper combustion chamber section 13. This combustion ehan'iher section 13 provided,

spaced from its upper terminus with seat 14 with which courts flange 15 of depending magazine 16 extending downward concentric of the combustion chamber sections l3, 10, to a region near the fire pot 7. These heat im- 35 parting sect ons 7. 10. 13. are circular throughout their vertical series extent.

The upper combustion chamber section 1?) beyond the seat 14 has seat 17 upon which rests top 18 having removable lid 19 which on being opened may permit the insertion of solid fuel into the tire pot 7 independently of any lateral access to said fire pot 7.

This top 18 has beyond its coaction with the combustion chamber section 13 an openwork providing portion 20 as a radiator directly above the outer side of the upwardly narrowing chamber 13. This portion 20 terminates in a downwardly extending skirt P 21. Outward from the seat 3 of the floor portion 2, the spider 1 has spaced radially ex- 3, 1924. Serial No. 753,630.

tending arms to carry upwardly directed seat 22. From the ash pit 4 there is doorway 23.

This doorway 23 carries hinges 24 mounting ash pit door 25 provided with catch 26 and adjustable damper 27. Except for this ash pit doorway and door, there is a continuous hot air chamber provided about this inner stove or fuel carrying section housed by inner wall 28 and outer wall 29. This housing 28. 29, is assembled with the openwork top 20 at the skirt 21 by bolts 30. The walls 28, 29, are spaced by washer 31 and the assembly completed by nuts 32 on the bolts 30. Bolts 33 through the lower portion of the wall 29 and through the seat flange 22. thence through the inner wall 28 have nuts 34 thereon. Accordingly. this double wall housing or shell is an assembly securing means for this heater. The several sections nest one within the other and the tire pot and combustion chamber sections are sealed by stove. cement 35 between their intcrfitting seat regions.

The ash pit 4 is provided with rear lug 36 and side lugs 37, 38. upon which is mounted grate 39 introduced through the door way 23. As so positioned this grate 39 is located in proximity to ash throat 40 of the fire pot 7 providing a clearance for clinker removal. Th s grate 39 has lugs 41 which carry pull grate section 42 shiftable as to grate opening 43 by handle 44 which also may serve as a shaker handle.

In the working of solid fuel and the ashes therefrom through this structure, access thereto is had only by way of the magazine 16 and the ash pit doorway 23. The products of combustion may pass from the combustion eh amber section 13 by fine section 45 to smoke flue 46. the draft in which may be checked by check draft damper 47.

This structure as disclosed has special utility in its adaptation as a garage heater but may serve as a room heater for maintained operation without attention in other uses as may be found desirable. Vhere gas is available, and coal or other hard fuel is to be used only in emergency, there may be normal operation of the structure as a gas heater where such gas is supplied by 1ine 48 past valve 49 to line 50 extending through the housing 29, 28, to ring chamber 51 having annular series of vent o enings 5:2 as a ring burner in the lower portion of the tire pot 7. This lire pot T is made iii-laterally symmetrical and bosses 53 diametrically disposed may have one thereof closed by plug 54. This is a feature of convenience in manufacture of the castings. The downward directed angle of the jets 2 prevent clogging thereof by the hard fuel.

\Vhat is claimed and it is desired to secure by Letters Patent 1. A stove comprising a base providing an ashpit floor and surrounding seat means with openwork radially outward from said ash pit floor. an ash pit having a doorway, a cylindrically closed fire pot, a cylindrically closed combustion chamber having an intermediate diameter in excess of the diameter of the fire pot. a cover for the chamber providing openwork radially from the chamber, said base, pit, pot, chamber and cover being in vertical series and having interfittin g seat means r therebetwecn, said base and cover having additional seats radially outward from said open work, a housing anchored with said additional seats to assemble the stove said housing comprising a pair of concentric walls spaced as to each other to form a closed heat insulating chamber completely surrounding the fire pot and combustion chamber, a door for the doorway of the ashpit, a fuel supply magazine centrally from the upper portion of said chamber and below said cover, said housing providing, except as to said ash pit doorway, a cylindrical heat conducting jacket, and legs for the base providing clearance for permitting draft intake through the base openwork for flow upwardly within the housing in directing the heat from the combustion chamber upwardly for draft discharge through the cover openwork.

2. A hot air heater embodying an ash pit providing an annular seat about the top thereof and a fire pot downwardly terminating in depending fingers and provided intermediate its height and just above said fingers with a ring chamber extending to provide an enlargement about the exterior of said pot, said enlargement coacting with said seat to mount the tire pot tinge-r portion to protrude into the ash p1-t,anda housing for the ash pit and fire pot.

3. A hot air heater embodying a. single wall tubular element downwardly terminating in depending fingers, and an endless ring chamber extending about said element near the lower portion thereof and upwardly of said fingers, said chamber beingintegral with said element and provided with orts directed into the tubular portion 0 the element toward a combustion promoting draft clearance region provided by said fingers.

l. A single wall tubular element having a uniform taper from the top toward the bot tom thereof as a restriction for fuel flow therethrough, and intermediate the element height an annular integral enlargement on the exterior side of said element to form a ring thereabout with the element wall tapering outwardly upward and inwardly dowm ward from said ring chamber. said ring hav-

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