US1446365A - Heater - Google Patents

Description

Lfm,

2 SHEETS-SHEET1.

o. WIEDEBHOLD.

HEATER.

FILED JAN. 3l 1922.

Feb. Z, 1923.,

INVENTOR. 0.5547/ @der/afd f4 f @rd/0 ma www@ www@ ATTORNEYS.

Feb, 2@9 1923. v 1,446,365@

' 0. WIEDERHOLD.

HEATER. A

AFILED 1AN.31*1922 2 SHEETS-SHEET 2.

f? Hi 45 44 BY j?? mm, @MMU/@wfg ATTORNEYS,

' used as fuel to produce heat.

scription following hereinafter, and the nov- A Patented Ztl, .1923.

ysra"rs oscila wrnnnssiotn, or rnrtanntrrira, PENNSYLVANIA.

uname.

application filed January 31,1922. `Serial No. 533,076.

To all whom t mary concern v Be it known that l', OSCAR WrnnnRHoLD, a citizen of Athe Uiiited'States,'and resident of Philadelphia, in the county 'of 'Philadelphia and 'State vented certain new and useful Improvements -in Heaters, 'of which the following is a specification. 1 u

This invention relates to. heaters ofthe kind in lwhich gas or vapors, such as thevapors ofwrasoline, kerosene, or thelike, are

It is the `object of this invention to provide a heater of this character which can be operated with a high degree of efficiency, and at the same time with a low fuel consumption, and in which there will be perfect combustion of the fuel.. Another object of this .invention is to provide meansfor preheating the fuel, thus increasing the heating effect. Still an other object is to devise an 'apparatus to which liquid fuel,- such as kerosene, gasoline and the like is fed, which liquid fuel is vaporized before it reaches the burners.

These objectsA and the advantages of my invention will appear 4fully from the deelty will then be pointed out in the appended claims. e

Reference is to be had to the accompanyi ing drawings, in which l have shown as eiramples several 'embodiments of my invenf tion, as well as several different waysof using the same. ln these drawings, y

llig.y 1 is a longitudinal cross section through one forni of heater unit taken on line 1-1 of F ig. 2, the latter being a face view of theheater unit shown in Fig. 1; Fig. 3 is transverse section taken on line '3 3 of Fig. 1; Figs. l and 5 illustrate a heater in which several units shown in Figs'.l i 1 to 3 are arranged side by side, Fig. l being' a front elevation and Fig. section on line 5 5 of F ig. a; Figs. 6- and 7 illustrate a different forni of heater, the former being a vertical section 1on line f5-.^6 of lTig. 'Z' and the lattera partial horizontal section .on

line 7 7 of gand Fig. 8 is section. similar to Fig. 1., but illustrating a forni of my invention inwhich liquid fuel. may' be used.

The form of my 'invention illustrated by l? 1 to 3 comprises a rectangular boa 10 enclosing a mining chamber 11 into which nleads a fuel supply pipe which may he aof Pennsylvania, have in `with, those holes 19 of Bunsen tube 12, as shown. rThe upper wall 13 of the boX 10 is provided with a number of outlets in the forniA of burner tips 14 which, in the particular example shown, are staggered so as to form rows of three and two tips alternating' with one another. Arrangedabove the box 10 and spaced therefrom by means of'short posts 15 is arectanguiar frame lr6 having a narrowliange 17 .serving to support aheating plate 18 made magnesia or other refractory material and of provided with holes 19 yeach in alignment "with one of the burner tips 14. 'Supported on the plate 18, within the frame 17, is another plate 20 also madeof refractory material and having, in the particular exa-m- -ple shown, transverse openings 21 of rectangular shape, the-two outer ones of which are located above solid portions' of the plate 18, while the openings 21 between these two outer openings lie above, andjin registry the plate 18 which are in line with the burner rows having two tips. Above the rows ofopenings 19 cor responding to the three-tip burner rows are located ribs 22 of thel plate 20, which ribsv are formed by the portions of the plate 2O which lie between adjacent openings 21 of said plate. rlhe ribs 22, however, de not cover up these openings 19 entirely, but they are spaced from the upper surface of the plate 18, as shown at 23 (F ig. 1), 'and serve to deflect the flame issuing through the para ticula'r openings 19 above which theyk arev located.

The operation ofthe device illustrated in Figs. 1 to 3 is as follows: Gaseous fuel is supplied throughv the Bunsen tube 12 tothe mixing chamber 11' where it `is thoroughly "21 lin the plate 20, will burn in a straight,

unobstructed flame, whilel that passing through the other rows of openings, that is,v through those in line with the ribs 22, will be deflected to bothsides by the lower surface ofthe ribs and compelled 'travel around such and in close Contact: therewith.

Both the heating plate 18 and the deiecting plate 2O will thus be thoroughly heated and the plate 18 as well 1as the portions of the plate 20 surrounding the openings 21 will be brought to a high degree-,of incandescence.

Additional air to support combustion is admitted through the space (see Figs. 1`to 3) provided between-the box 10 and the heatlI ing plate18 and a thorough combustion of the fuel is thus insured. Those flames which pass through thev plates 18, and 20 unobstructed, provide the necessary draft for the other, deflected flames.

The fuel passing throughv the mixing chamber 11 is preheated in said chamber by the heat deiected downward from the heating plate 18. Even if the air supply hole 24 in the-pipe 12 should be clogged up or otherwise closed, partly or entirely, the air sup-r plied at` the burner tips 14 would be sufficient to produce a BunsenA ame, althouUh the combustion would not be so efficient. T e two plates 18, 20 needl not be separate plates, but might be made, if desired, to form an integralheating body.

The haar una illustrated in rigs. i t@ 3.-

` may be used either alone for heating or cooking purposes, or a number of them might be utilized in a gas range. A convenient fo-rm has been illustrated in Figs. 4 and 5, in

which three' heater units 25 have been shown arranged side by vside in a heater. 26 of suitable construction. IGras or other fuel is supplied to the heater units through a common Bunsen tube 27 and a T-connection 28. The walls of*4 the 'heater are preferably made of an asbestos mixture containing a red pigment and, as vshown in Fig. 5.the heater units are preferably so arranged in one of said walls that the anges 17 'of the frames 16 are Hush with the rear face of the said wall, so that the air intake forthe additional.

air is located behind said `wall.` The` red walls of the lheater 26 will strongly reflect the heat radiatedfrom the heatervunits 25 and a very effective heating action is thus obtained. Figs.` 4 and 5 show lines, in imitation of brick work; this effect may be obtained by p aintin white lines on the sur'- faces of the red wal s, to indicate the Vmortar in the joints.

While the heater illustrated "in Figs.,4 and 5 will generally be used with its back-facing 'a wall of a room, or in connection with an open lireplace, I have shown in Figs. 6 and 7 a form of heater which radiates'hea't in all directions and can therefore be used con` veniently in the center ofia room. The rela tive arrangement of mixing chamber, heating and deflecting plates is the same as in the form of my invention shown in Fi s 1 to 3; they dili'er, however, in Shape. gupported on legs29 in a base plate 30, pro=- vided in the center with a circular opening and carrying an annular box 31 containing-fform burner tips 57. Atits upper edges the structure together.

iA/iaeer) the mixing chamber 32 into which leads the fuel-supply tube 33 having air-inlets 33. vIn

` the top wall of the box 31 are located the burner tips 34 which in this particular. case are arranged in radially-extending rows having alternately two and three tips. The

opening 35 formedin thecenter of the base plate 30 and the b ox 31 serves to Supply to the burners anaddit'ional amount of air to support combustion. Abovethe box 31 is supported, at a distance therefrom, an annuf lar frame 36 carrying `a heating plate 37 and. a deflectin-g plate 38, the plate 37 having circular openings 39 registering v'with Ythe burner tips 34, while the defiecting late 38 has oblong openings 40^ leaving hetween them ribs which coverup, to a' certain extending flange 44 surrounding the lowerv end of the screen 42. The open end of the member 41 is closed by a cover 45, and underneath the opening 35 is arranged bracket 46,- the cover45 and bracket 46 being connected by a-rod 47 which holds the whole l The units. 48 at the lower end of the rod 47 also serve tohold in place underneath the opening 35 aV fire pan 49 which, while not preventing the air from enteringthe opening 35, will catchl any-r material which may become" detached from the heating plate 37 during use of the heater. y

^ The operation of the heater vjust described is the same as with the other` forms of my invention, except that the heat of the flames will also be communicated to the conical radiating member 41 which will be brought` to incandescence, at least in part, and will radiate its heat all around. j f In Fig.. 8 have illustrated a form ofg. burner unitl similarin its general feataii-"esto 'the form shown `in Figs. 1 to 3,b1lt`; in" which liquidfu'ehzsuch as kerosene, 'oil the like may be fed to the apparatus and vaporized therein before beingignited. Ac-

cording to Fig. 8, I provide a box 50 containing two chambers, a lo'weror mixing chamber 51 and an upper or 'vaporizing chamber 52. Intoy the chamber 52' leads a fuel-supply pipe 53 provided with a suitable valve 54, and from the upper space of this chamber leads into the( lower or mixing -chaniber 51 a pipe 55, which may be in the form of a Bumsen tube, so as to admit air.. The chamber 51 communicates with the space above the chamber 52 by a number of passages 56 which at their upper ends box 50 is provided with upwardly-extending flanges 58 forming ,with the upper surface of' the box a pan 59 into Whichalcohol or the like may be )o ured to start the operation A The operation of this device willbe readily understood: Liquid fuel, such as Afor instance kerosene, is admitted to the chamber 52 by opening the cock or valve 54. Then l alcohol or the like is poured into the pan 59 and ignited, thereby heating the upper wall of the chamber 52 and vaporizing the fuel contained in said chamber. The vapors thus produced are forced through Bunsen tube into chamber 51 where they are thoroughly mixed with the air drawn in through the openings in said tube. This fuel-and-air mixture then travels through the passages 56, is ignited on issuing from the burners 57, and produces heat in the same manner as described in connection with Figs. 1` to 3. After the operation has thus been started, the liquid hfuel will continue to be vaporized by the heat radiated downwardly from the burning fuel.

I claim:

1. In a heater, a heating body having .per-

forations. and also having solid portions located in registry with the outlets of said perforations but spaced therefrom so as to allow gases issuing from said outlets to escape laterally from the space between the said solid portions and said outlets, and burners hav,-

ing outlets in line with said perforations onA the inlet side thereof and in such proximity to said inlets as to cause a supply of air to be drawn into said perforations together with the combustion gases issuing from. the burner outlets. f

2. In a heater, a heating body having perforations and also having solid portions between said perforations and additional solid portions locatedin registry wit-h the'outlets of said perforations but spaced therefrom so as 'to allow gases issuing from said outlets "to pass laterally from the space between said additional solid portions and said outlets,

and slot-like openings located between said additional solid portions, and burners hav ing outlets inline with said perforations on the inlet side thereof.

3. In a heater, aburner having a Bunsen arrangementand provided with outlets, and a heating body spaced from the outlets of said burners but adjacent thereto, said body having, on the side facing the'burner, openings in registrywith burner outlets, and, on

"the side distant from the burner outlets, ribs in line with the outlets of said openinge and spaced therefrom so that the combustionl products from the burner outlets will travel in a'straight line to and through said openings of the heating body, then laterally between said ribs and the outlets of said openings, and finally vout through the spaces between said ribs.

4. In a heater, a heating4 body having holes and solid strips located in line with said holes infront of their outlets, at a distance therefrom, and a burner to direct a Bunsen llame into said holes, whereby the Bunsen .flame striking said solid strips will be deflected laterally andback on thesolid portion of 4the heating body between such strips, to bring such solid portion to incandescence.

In testimony whereof I have signed this specification.

. osoanwiEnERHoLD.

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