US782202A - Gas-burner. - Google Patents

Description

PATENTED FEB. 7, 1905. J. W. NEUMANN.

GAS BURNER.

APPLICATION FILED JUNE 17. 1904.

a snxms-s1n1nw 1.

No. 782,202. PATENTED FEB. '7, 1905.

J. W. NEUMANNL GAS BURNER.

APPLICATION FILED JUNE 17. 1904.

3 SHEETS-SHEET 2.

No. 782,202. I PATENTED FEB. 7, 1905. J. W. NEUMANN.

GAS BURNER.

APPLIOATION FILED JUNE 11. 1004.

a SHEETS-SHEET s.

g'lllllllpi 2 No. 782,202. Patented February '7, 1905.

UNITED STATES PATENT OFFICE. if

JOHN IV. NEUMANN, OF ST. LOUIS, MISSOURI, ASSIGNOR OF PART TO CHAR-LES A. UNGER AND B. H. BENHOFF, OF ST. LOUIS, MISSOURI.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 782,202, dated February 7, 1905.

' Application filed June 17, 1904. Serial No. 212,957.

T "VI/0m 7'15 Y/ I straight portions 16 and 16" of the mixing- .Be it known that LJOHN V.NEUMANN,L citichamber. zen of the United States, residing at St. Louis, The burner-cap comprises a central body State of Missouri, have invented certain new 18, through which a lag-screw 19 is inserted 5 5 and useful Improvements in Gas-Burners, of into the cylindrical body 1% to screw the cap which the following is a specification containin position, a plate 20, extending outwardly ing a full, clear, and exact description, referfrom the body 18, a perforated annular wall ence being had to the accompanyingdrawings, 21, extending downwardly from the outer forming a part hereof. edge of the plate 20, said wall having the gas IO hly invention relates to improvements in perforations .22, and ribs 23, extemling radigasdnn-ners; and it consists of the novel feaally from the body 18 to the flange 21 to ditures herein shown, described, and claimed. vide the space within the cap into three equal .In the drawings, Figure 1 is a vertical cenparts forming the distributing-chambers 21, tral section on the line 1 1 of Fig. 2. Fig. 2 said chambers registering with the three mix- 5 is a top plan view as seen looking in the diing-chambers 16. Lugs 25 and 26 extend uprection indicated by the arrow 2 in Fig. 1. wardl y from the upper face of the cylindrical Fig. 3 is a top plan view, partly in section body 1%, one upon each side of oneofthe ribs and parts being omitted. Fig. 1 is a bottom 23 tohold thecapin place withthedistrilmtingplan view of the burner-cap. Fig. 5 is a perchambers 21 in registration with the mixing- 5 2O spective of the burner-jets and nozzles. Fig. chambers. The lower face 20 of the plate 6 is a view analogous to Fig. 1 and showing a 20 is parallel with the upper face it of the IllUt'llliCitt-iOIl. Fig. 7 is a bottom plan view mixing-chamber casting, and the gas-perforaof the burner shown in Fig. 6. Fig.8 is a pertions 22 are close to said lower face 20. spective of the nozzle shown in Figs. 6 and 7. v The nozzles comprise the cap 27, bored out 5 Referring to the drawings in detail, the supand adapted to be attached to the supply-pipe porting-frame comprises the annular wall 28 by a coupling 29. cars 30, extending radi- 10, the supporting-feet 11, extending downally from the cap 27 and secured to the botwardly from the wall 10, the fiange12,extendtom of the cylindrical body 11 by screws 31, ing horizontally inwardly from the upper and the jet-arms 32, extending radially from 3 edge of the wall 10, and the flange13,extendthe cap 27 and having jets 33 discharging uping upwardly from the wall ll) outside of the wardly into the funnel-shaped mixing-chamflange 12. hers 1c. The jets 3?) are connected to the bore The mixing-chamber castings comprise a in the cap 27. A valve Zrt controls the supovlindrical body 14, resting upon the flange ply of gas to theburner. 'lheshutterslio are 35 12 within the flange 13 and secured in posiflat plates mountedbetween two screws? and tion by lag-screws 15, inserted upwardly adapted to slide on the. lower face of the cylinthrough the flange 12, there being three indrical body H in position to regulate thedraft vertedfunnel-shaped mixing-chambers 16 in upwardly through the mixingchambers. said cylindrical body, and a flange 17, ex- \Vhen thcgas isturned on, it willpass through 4 tending upwardly from said cylindrical body. the pipe 28 to the cap 27 and then to thejets 33. I In addition to the inverted-funnel-shaped por- Then from the jets it will be discharged uption 16 each mixing-chamber has the lower wardly through the mixing-chambers. The straight portion 16, extending downwardly, force of these streams of gas will create a and the upper straight portion 16, extenddraft, drawing air upwardly past the shutters 9 45 ing upwardly. The upper face 1etof the mix- 35, and this air will be forced inwardly and ing-chamber casting is at right angles to the compressed by the funnel shape of the mixing-chambers, thereby causing a good mixture of the gas with the air. The discharge end of each jet 33 is above the lower end of the straight portion 16 of the mixing-cham- 5 her and below the lower end of the funnelshaped portion 16. I have found by actual practice and years of experience that this peculiar shape and location of a jet and mixingchamber, together with the peculiar shape and relative location of the distributing-chamber 24 and the gas-perforations 22, produces a greatly-improved combustion over any of the ordinary forms of burners. The action of the gas passing from the jet 33 will start a draft of air the full size of the diameter of the straight portion 16 of the mixing-chamber, and this volume of air passing upwardly into the funnel-shaped portion 16 is contracted and accelerated and forced into mixture with the gas, and this mixture of air and gas passing through the reduced straight portion 16 strikes directly against the lower face 20, rebounds and passes laterally over the upper face 14, strikes the annular wall 21, and then passes through the perforations 22.

In the modification shown in Figs. 6, 7, and 8 I use a single mixing-chamber and a single jet-arm, but the same principles are maintained.

When the burner is inoperation, the airimmediately surrounding the mixing-chamber casting will be drawn upwardly by the flame, and the pressure of the cold air will force this upflowing air against the flame and con centrate the heat of the flame at a central point immediately above the center of the burner, and this concentrated heat strikingthe bottom of a vessel will be spread out all over the bottom and upwardly around the sides, thereby forming a heat-jacket protecting the vessel from the cold air. The gas passing upwardly through the mixing-chambers will strike the center of the plate and be highly heated before passing through the openings to the flame. This plate 20 is a heavy casting well adapted to hold and convey heat, and should not be confused with the ordinary thin pressed cap heretofore in use. These points effect a great saving in the consumption of gas and produce more perfect combustion.

I claim- 1. In a gas-burner, the mixing-chamber casting, comprising acylindrical body, having an inverted-funnel-shaped mixing-chamber 16, and there being the straight portion 16 extending downwardly from said funnelshaped portion, and there being the straight portion 16, extending upwardly from the central portion; and the upper face 14 of the casting being at right angles to the discharge end of the mixing-chamber; a plate; the annular wall 21 extending downwardly from the I plate, there being perforations 22 in said wall close to the plate, the lower face 20 of said plate being parallel with the upper face 14 of.the mixing-chamber casting; and the nozzle 32, having the jet 33 discharging into the mixing-chamber, above the lower end of the straight portion 16*.

2. In a gas-burner, the annular wall 10; the flange 12, extending inwardly from the upper edge of the wall; the mixing-chamber casting, resting upon the flange 12. said casting comprising the cylindrical body 14, having mixing-chambers, consisting of the inverted-funnel-shaped central portions 16, the lower straight portions 16 and upper straight portions 16; the upper face 14 of the casting being at right angles to the mixing-chamber; the plate 20; the annular wall 21, extending downwardly from the plate and resting upon the mixing-chamber casting and having gasperforations 22 immediately below the plate, and the lower face 20 of the plate 20 being parallel with the upper face 14 of the mixing-chamber casting; the cap 27; ears 30, extending radially from the cap and secured to the mixing-chamber casting; and the jet-arms 32 extending radially from the cap and having jets 33 discharging into the mixing-chambers above the lower ends of the straight portions-16.

3. In a gas-burner: the mixing-chamber casting comprising, a cylindrical body having a plurality of inverted-funnel-shaped mixingchambers 16; there being the straight portions 16 extending downwardly from said funnel-shaped portions; and there being the straight portions 16 extending upwardly from the central portions; and the upper faces 14 of the casting being at right angles to the discharge ends of the mixing-chambers; aplate; an annular wall extending downwardly from the plate; there being perforations in said wall close to the plate; the lower face 20 of said plate being parallel with the upper faces 14 of the mixing-chamber casting; radial ribs extending downwardly from the plate inside of the flange to divide the space within the flange into as many parts as there are mixingchambers; and nozzles having jets discharging into the mixing-chambers; substantially as specified.

4. In a gas-burner: the mixing-chamber casting comprising, a cylindrical body having a plurality of inverted-funnel-shaped mixingchambers; there being straight portions 16 extending downwardly from said funnelshaped portions; and there being straight portions 16" extending upwardly from the central portion; and the upper faces 14 of the casting being at right angles to the discharge ends of the mixing-chambers; a plate; a central body extending downwardly from the plate; a perforated annular wall extending downwardly from the plate; ribs extending IIS radially from the annular wall and Clown- IntestimonywhereofIlmvesignetlmynarne \vzn'tlly from the plate to CllViClB the space into to tbis'specificatlon 1n presence 0t two sub- 10 llistnbutingchambers cornmunlcatlng Wlth scriblng Witnesses.

l V (l 18 lnlmn clmlnbels, lneans 0t holellng the JOHN T NEUMANN 3 cllstl'lbutlng-chambers 1n reglstratlon wlth the mixing-clmmbers; and nozzles clischarg- \V1tnesses: mg into the mixing-chambers; substantially ALFRED A. EICKS,

as specified. JOHN C. HIGDON.

Images