US1568771A - Grid for gas burners - Google Patents

Description

Jan. 5 ,1926. 1,568,771

J. ROY

GRID FOR GAS BURNERS Filed June 30, 1925 5 Sheets-Sheet 1 Jan.5,1926. v 1,568,771

4 J. ROY

GRID FOR GAS BURNERS F iled Jun 50, 1925 3 Sheets-Sheet 2 flaz. 4? J9 UDUUUUFEIUETUU 1g UUUUUDUUDUU I UUUUU DUB [I DU UULIQEJUUUDU 1J Jan. 5 192s. 1,568,771

J. ROY

GRID FOR GA S BURNERS FiledJune 30, 1925 3 Sheets-Sheet 5 Egg: y j 14 j 1% 9...... Jan. 5.1m-

.um'rao STATES' PATENT omen.

.romn BOY, OI OLIVIIJAND, OHIO, ASSIGNOB IO AURIGA! ITO comm, OI 8'1. more, KISSOUBI, A OOBPOMTION OI GRID FOB GAB 311mm.

. Application fled June :0, 1m. Serial Io. 40,523.

A further object is to decrease the cost of producing a as burner grid, and at the same time maie it accurate in construction and eflicient in operation.

90 A further object of the present invention is to make a gas burner grid with vertically arranged spaced bars connected by narrow integral parts ofmetal from whlch the grld is constructed.

A further object of the present invention fin is to produce a gas burner grid with vertically arranged spaced bars connected with transversely narrow arranged parts made from the same metal, the bars arran ed longitudinal the burner body, where y elliciency in o eration, accurac in construction, and c eapness in pro uction are all accomplished.

A further object of the present invention N is to make an improved gas burner grid by stamping openin in a lme from a sheet then bending the eet at the junctlon oi the openings and compressing the bent sheet, the walls of, the opening thus forming transverse connections for the vertical ars.

A further object of the present invention is to form a gas burner grid by cutting in a suitable sized sheet several rows of openings arranged in a line, one wall of the openings bent at its junction with the other walls of theopenings, and then compressed until the bent portions arebrought 1n contact with each other, whereby aligned verti- 50 cal separated bars are formed, the bars being connected by the bent walls of the members 10 to which the is suitably attached.

Further obljlects of the invention will appear from t e following description.

t e e Figure 119 a top plan view of a radiant heat burner showing my improved grids applled thereto.

1g. 2 1s a plan view of a difierent type of purper showing the improved grid applied 0 1 Fig. 3 shows a sheet with o nings cut in it wh ch 1s the first step in t e production of time improved grid.

F1g. .4 shows an edge elevation of the sheet bent.

F g. 5 is a top plan view of Fig. 4.

F1g. 6 1s an enlarged transverse sectional view of F gures 4 and 5. F1g. 7 -1s an enlarged plan view of the improved grid.

F g. 8 1s an edge elevation of Fig. 7.

Fig. 9 IS a cross' sectional view on the l1ne 99 of Fig. 7.

Fig. 10 is an enlarged longitudinal view of the bent sheet before it is compressed into al form.

F1g. 11 is a side elevation of the improved grid 0 nt at diflerent points from that shown in Figs. 7, 8 and 9.

Fig. 12 1s a cross sectional view on the l1ne 1212 of Fig;11.

Figure 13 is a perspective view of one end of the improved grld.

Referring now to the accompanyin drawngs, 1t w1ll be noted that when t e grid 1s used for a radiant heat burner that 1t is composed of a plurality of sections-1 2, 3, .4 and 5. These sections are properl set in the open top of 'a housing 6, an the 90 several sections are held in osition by suitable members 7, that arev ocated between the ends of the sections and suitable screws 8 that pass through the-members (into the housing 6. I desire it understood that the number of sections may be varied and the manner of connecting the sections may be difierelit from that here shown without departing from the present invention.

In fact in Figure 2 I show a top burner 9 for gas ranges which has a housing rovided with a pluralityof radially exten ing improved grid 11 a suitably size sheet metal as shown in Fig. 3, and stamp in the sheet a plurality of openings 12. Preferably the sheet is elongated, and the openings therein are arran ed in lines transverse and longitudinal of t e sheet, and the said openings are rectangular in form and considerably wider than the walls 13 and 14 that form said openin s. The walls 14 of these openings 12 are cut substantially at their junctions 15-with walls 13. When bent the metal sheet thenis in substantially the form shown in the end view Fig. 4 and the top plan view Fi 5. Figure 6 is an enlarged view of the s set bent as shown in Figures 1y above the bars 13 as shown at 17,

4 and 5, which shows that the bend is substantially at the junction of the wall 14 with the wall 13 at 15;

The sheet having been bent as disclosed in Figures 4 to 6 inclusive, is then tightly compressed until the doubled portions are in contact with each other as shown in Figure 9 which produces a grid constructed as shown in Figure 7.

This grid when made u has its walls doubled upon each other, t ereby forming longitudinal spaces 16 that extend between the connecting doubled walls 13 of the grid.

The walls 14 are doubled while the walls 13 stand on end in separated relation forming the longitudinalspaces 16 that are located between the doubled parts 14.

By reference to Figure 8 it will be observed that by doubling the walls 14 substantiall at their junction with the walls 13 that t e doubled part extends only slight- 1g. 3, whereas the lower doubled part of the grid extends considerably below the walls 13 as shown at 18, Fig. 8.

The object of forming the grid as shown in Figs. 7, 8 and 9 is to prevent an appreciable amount of metal extending a ove the top of the grid and therefore in the-combustion, because it would become heated and would have a tendency to fire back between the separated walls 13. However in some constructions it might be desirable to make the bend further removed from the junction of the walls 13 and 14, for instance as shown in Fi 10 which would produce a grid in side e evat'on as shown in Fig. 11, whereby the doubled 'portions of the .walls extend equal distances'or substantially equal disstances below and above the up er and lower edges of the walls 13. It Wlll be readily understood that the distance that the doubled portion of the walls 14 extend above or below the edges of the walls 13 can be regulated by the point at which the walls 14 are double It will be observed from the foregoing description of this improved grid that the doubled portions 14 extend transverse the grid when com leted, and that the walls 13 extend longitu 'nal the grid, consequently causing the said walls to stand endwise and form longitudinal spaces 16 for the passage of the fuel between the doubled parts 14.

From the foregoing I produce a grid which is simple in construction because it is made from a single sheet of perforated metal.

I produce a grid which is accurate in its formation because the spaces 16 between the vertical bars are accurately formed by reason of the bars being bent until they are in contact with each other thus making uniform spaces. It produces a grid which is eflicient in operation because it is accurate, and enables all of the grids to be made with equal spaces between the vertical bars for feeding the fuel thus avoiding inefficiency which arises from unequal spaces between the vertical bars.

It will be understood that the spaces between the vertical bars are regulated by the thickness of the sheet, thus enabling the spaces to be accurately made to suit the work that is to be performed by the grid.

I do not limit myself to the exact construction herein shown and described, because various changes might be made without departing from the spirit and scope of the invention so long as it is within a fair interpretation of the a pended claims.

Having thus described my invention what I claim and desire to secure by Letters Patent is 1. A as burner grid comprising a plurality 0 parallel vertical bars spaced apart by vertical stri s passing between the said bars, the strips aving their upper and lower edges connected with the upper and lower edges of the said bars.

2. A gas burner grid comprising a lurality of vertically arranged bars space apart by vertical strips assing between the said bars, the tops of the strips connected with the top of one bar, and the lower end of the strips connected with the bottom of an adjacent bar.

3. An improved gas burner grid comprising vertically arranged parallel spaced bars, and vertically arranged strips passing between the said bars, the said strips having their upper ends bent and inte a1 with the upper edges of one bar and t e lower end 0 the strip bent and integrally connected with the. lower ed e of an adjacent bar.

4. An improve id for gas burners, comprising a plura ity of vertically arranged bars, said bars having integral transversely arranged comprising a ortions located at their upper and lower e ges, said transverse portions being bent and connecting and sustaining theupper and lower edges of the bars in uniform spaced relation.

5. An improved grid for gas burners, comprising a lurality of vertically arranged bars, said bars having a plurality of transversely arranged portions, said portions arranged in s aced relation, tions holding the ars in uniform spaced relation and the portions forming obstructions for the passage of gas thereby the grid having a plurality of burning spaces. 6. Animproved grid for gas burners,

lurality of vertically arranged bars, said bars having transversely arranged integral portions at their upper andlower edges, the portions at their upper edges being bent downward and at their lower edges bent upward, thus sustaining the bars n uniform separated relation.

.opposite en s 7. An improved grid for gas burners comrising a (plurality of vertically arranged ars space apart by vertical strips and arranged in a lurality of transverse lines the of the said strips connecting and holding the said bars whereby a grid is formed with a plurality of separate spaces for the passage of gas for the purpose specified.

said porv 8. An improved grid for gas burners comprising a plurality OfVBItlGfll parallel bars separated by vertical strips which are arranged in parallel spaced lines for the purpose described, the upper ends of the strips secured to the upper portion of one 1 bar and the portion of an adjacent bar.

9. An improved grid for gas comprising a plurality of parallelwertical' bars se arated by vertical strips the upper p the top por tion of one bar and extending down con;

ends 0 the strips connected to and the. lower ends of the strips extending considerably below the said bars and donbled upward with their ends connected with the lower parts of adjacent bars for the purpose described y In testimony his signature.

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lower end secured to the lower i burners?! integrally whereof hehereunto aflures

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