US1681068A - Gas range - Google Patents

Description

Aug. 14, 1928. 1,681,068

T. E. TAYLOR GAS RANGE Fi1edNov-5, 192e 2 sheets-sheet i Aug. 14. 1928. 1,681,068

T. E. TAYLOR4 Y GAS RANGE Filed Nov. 5, 1926 2 SheetS-Sheet 2 Patented Aug. 14, 1928.

UNITED STATES 1,681,058 PATENT oFFlcE.

THOMAS E. TAYLOR, OF MANSFIELD, OHIO, ASSIGNOR TO THE TAPPAN STOVE COM- PANY, OF IMANSFIEIILOHIO, A. CORPORATION 0F OHIO.

GAS RANGE.

Application tiled November 3, 1928. Serial No. 145,971.

This invention relates generally to a aratus for heating and cooking by gas, eit er natural or artificial, or other uid fuel of analagous character, and has particular refer- 6 ence to the arrangement and construction of the various parts of a gas range of the closed top type.

Heretofore great diiiiculty has been experic ended in gas ranges of this type due to the 10 presence of poisonous gases, chiefly carbon monoxide.

The main object of this invention is to pr o vide a gas range of the closed to type in which the fires at the top are covere ,the same 1 5 being arranged and constructed to discharge the products of combustion across the top of the ran e and into a Hue and being amply supplie with secondary air so as to insure substantially complete combustion and romote a draft that stimulates each .indivi ual I flame and in which there is practically no danger of noxious emanations.

A further object of the invention is to p rovide a range of the class described affording an eiiicient and practical arran ement of the burners so placed as to-be rea ily accessible for inspection and regulation and in which the secondary'air is delivered only to the base of the flame. y

Another object of the invention 1s to p rovide a range of the character described having a plurality of burners arranged exclusively in the front ortion of the combustion or heat generating c amber and which is provided at :15 its rear portion with a iue. the products of combustion being drawn across the top of the stove to effect an; even distribution of heat across the whole'of the cooking top.

Another object of the invention is to pro- 40 vide a combustion or heat generatin chamber, the bottom of which is provide with a series of slots adapted' to be positioned directly over and in close proximity to the flame in such a manner that the secondary air for sup- 5 porting combustion is delivered to the base of each iiame jet whereby to prevent the emission of carbon monoxide.

Still further objects of the invention will appear as the description proceeds and by V reference to the'accompanylng drawing in which Fig. 1 is a plan view of a range constructed in accordance with my invention;

Fig.. 2 is a vertical sectional view o f the range shown in Fig. 1 with lower portion broken away; Fig. 3 is an enlarged detail sectional view showing the relative position of the burner and the bottom plate of the combustion chamber; Fig 4 is a plan view of a modified form of burner; Fig-5 is a side elevation of the same; Fig. 6 is a sectional view on the line 6-6 of Fig. 4 with the parts bent out into the same plane; and Fig. 7 is a.view partly in section and partly in side elevation showing the burner in a slightly different position from that shown in Figs. 2 and 3.

Referring now to the drawino the invention is embodied in a gas range theiody of which is preferably suiciently elevated so that the cooking top is so disposed that cooking utensils maybe handled without bending over or stooping. The invention relates particularly to the heat generating or combustion chamber and therefore only that portion of the range is illustrated in the drawing.

The numeral 1 designates the cooking top which is of the closed-top type and preferably provided with openings which are closed by removable lids 2. Disposed below tle cooking top 1 and spaced a short distance therefrom is a bottom plate 3. The bottom plate 3 is provided at its outer edges with upstanding vertically disposed. walls having overhanging peripheral flanges thereon which rest on flanges 4 and 5 formed on the frame below the cookingtop 1. It will therefore be seen thatthe bottom plate co-V operates with the cooking top to rovide a heat generating or combustion cham er. The bottom plate. is preferably cast in twofsections and is provided with a partition 6 extending from front to rear as shown which ldivides the combustion chamber into two main compartments 7 and 8 and a third smaller compartment 9. The compartments 7, 8 and 9 are provided at theirrear ends with openings 10, l1 and 12 which connect the same with a flue 13 formed Jon the back part of the range and leading to a pipe 14 which carries olf the products of/combustion.' The front of the range immediately 100 vbelow the bottom plate is lprovided with an opening 15 extending all t front of the same.

Extending across the range below the bottom plate l is a supporting bar 16. Position- 10| ed belowQ-the bottom plate and beneath the forward end of compartments 7 and 8 is a burner 17 of the star-shaped type'havin a pluralit of rows of gas orifices 18.

e way across the he rear en of the burners 17 are supported on llo the bar 16 and the forward ends of the same are provided with the usual air mixers 18 and control valves 20 connecting with manifold 21. i Positioned beneath the forward portion of the compartment 9 and supported in any suitable manner is a simmer burner 22 which is provided with the usual air mixer and gas control cock.

The bottom of each compartment near its forward end is provided with a plurality of radially disposed slots 23 positioned directly above the rows of gas orifices 18. The burners 17 are supported at their rear ends by means of the bar 16 and are spaced a suitable distance from the slots 23 so as to allow secondary air to enter the combustion chamber through the slot 23 and adjacent the base of the jets of flame which are projected through the slots and into the combustion chamber. The compartment 9 is provided in its bottom with an opening 24 beneath which is positioned the small simmer burner 22. Instead of the opening 24 the compartment 9 may be provided with radially disposed slots similar to those provided for the compartments 7 and 8. However, this is not absolutely necessary. The space beneath the bottom plate 3 is entirely open at its forward end so that air may be admitted freely and pass up between the burner and the bottom plate and through the slots to supply secondary air to the base of each llame jet for supporting combustion.

By providing radially disposed slots over each row of burner openings I am able to use a regular standard burner of the star shaped type and each dame jet is maintained separate and distinct from the adjacent jet. With my construction I am also able to provide a larger number of flame jets and also to supply a larger amount of secondary air to the base of each llame jet than would be the case if I used a row of separate openings instead of slots and with this construction each flame jet may be of smaller diameter, and consequently there is less danger of flashing back and igniting in the mixer. With a burner having a large number of ports of relatively small diameter I am able to position the burner very close to the cooking top without allowing the flame jets to impinge against the lower side of the cookin top and therefore obtain greater heating ehciency with less chance of carbon monoxide gas. In the standard size giant burner consuming 12000 B. t. u. per hour I make use of fty-two ports or llame jets and the jets of flame do not impinge against each other or against the cooking top. I therefore get a hotter flame which is disposed closer to the cooking top and without the danger of the emanation of carbon monoxide gas. My construction also reduces the number of parts to a minimum and hence the range is better adapted for quantity production at low cost. It will also be seen that I provide a separate heat generating compartment or combustion chamber for each burner, each compartment having a separate outlet to the flue which results in a better draft and draws a sullicient amount of secondary air into the combustion chamber to prevent emanation of noxious gases.

In Figs. Il, 5 and 6 I have disclosed a slightly modified form of burner in which a plate 25 having a plurality of radially disposed slots 26 therein is secured to the burner by any suitable means preferably by means of screws 27. The plate 25 is secured to but spaced from the burner and those portions of the plate lying between the slots are bent downwardly as shown most clearly in Fig. 6 and serve to direct the air into the base of each flame jet. When a burner of this type is used the bottom opening in each compartment is circular instead of radially disposed slots and the burner is positioned within and slightly below the opening but so positioned that the fiames are projected into the combustion chamber. In other respects the construction is identical with that disclosed in Figs. 1 and 2.

In Fig. 7 I have shown another modification in which the burner projects through the slots and is positioned so that all of the flame lies within the combustion chamber and the slots are made large enough to allow a sufficient amount of secondary air to enter the combustion chamber. This form of the invention is the same as that disclosed in Figs. 1 and 2 except that the burner is positioned slightly higher with respect to the bottom plate and the flame lies wholly within the combustion chamber.

It will now be clear that I have provided a range which will accomplish the objects of the invention as hereinbefore stated.

Having thus described my invention, what I claim is 1. A gas range of the character described comprising a frame substantially rectangular in shape and provided with a closed cooking top, a bottom plate disposed below said top and spaced therefrom and cooperating with said cooking top to define an underlying combustion chamber, said bottom plate having upstanding Vportions defining a partition extending from front to rear of the combustion chamber and dividing the same into a plurality of separate non-communicating compartments, a fiue communicating with the rear end of each compartment, the bottom of each compartment near its orward end only being provided with a plurality of narrow radially disposed slots, a burner disposed below the forward end of each compartment, each burner havin a plurality of single rows of s orifices isposcd in alignment with sai slots and poSitioned centrally with respect to said slots Up project aine jets through said slots and being so spaced from the edges of said slots as to permit secondary air to enter each compartinent along both sides of the flame jets adjacent the bases thereof whereby to promote combustion and to prevent' noxious emanations.

2. A gas range of the character set forth comprising a frame substantially rectangular in shape and provided with a closed cooking top, a bottom plate disposed below said top and spaced therefrom to define an underlying combustion chamber, said bottom plate having a partition dividing the combustion chamber into a plurality of compartments, a flue communicating with the rear end of each compartment, the bottom of each compartment near its forward end only being provided with a plurality of narrow radially disposed slots, a burner disposed below the forward end of each compartment, each burner having a plurality7l of single rows of gas orifices disposed centrally of and in alignment with said slots to project iiame jets through said slots and being so spaced with respect to the edges of said slots as to permit secondary air to enter each compartment along both sides of the flameijets adjacent the bases thereof whereby to promote combustion and to prevent noxious emanations.

In testimony whereof, I hereunto atiix my signature.

THOMAS E. TAYLOR.

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