US1646859A - Gas range - Google Patents

Description

Oct. 25 1927.

A. F. HARTER GAS RANGE Filed May 9, 1925 Oct. 25 1927. 1,646,859

A. F. HARTER GAS RANGE Filed May 9, 1925 3 Sheets-Sheet 2 Oct. 25 1927. 1,646,859

A. F. HARTER GAS RANGE Filed May 9,. 1925 asheets-sheez five Z02",

Patented Oct. 1927.

UNITED STATES 1,646,85 PATENT OFFICE.

AUGUSTUS F. HARTER, OF OAK PARK, ILLINOIS, ASSIGNOR 'IO CEIBBEN 8t SEXION COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

GAS RANGE.

Application filed my a,

This invention relates particularly to gasranges provided with burner-boxes having front and rear burners mounted therein.

The invention is particularly useful in a range having the burner-box closed except at its front side. In such case, the rear burners operate very inefficiently. A phenomenon termed floating occurs. That is, the burning gas appears to float away from 11- its point of issuance from the rear burners and an incomplete combustion results.

In accordance with the present invention, recondary air-supply conduits are mounted in, or connected with, the burner-box and 5 serve to supply the additional air to the rear burners which is required to effect complete combustion.

The invention is illustrated in its preferred embodiment in the accompanying 2o drawings, in which- Fig. 1 represents a front elevational View of a gas-range embodying the invention; Fig. 2, a plan view of the same; Fig. 3, a plan view, with the top plates of the burnerbox, which forms the cooking top of the range removed; Fig. 4:, a broken plan sectional view showing one of the secondary air-supply conduits employed; Fig. 5, a broken plan sectional view illustratlng a modification; Fig. 6, a broken vertical sectional view taken as indicated at line 6 of Fig. 3; Fig. 7 a broken vertical sectional view taken as indicated at line 7-7 of Fig. 3; Fig. 8, a broken vertical sectional vlew illustrating a slight modification of the air conduit shown in Figs. 1 and 4; and Fig. 9, a broken plan section illustrating a further modification of the invention.

Referring to Figs. 1-4, and Figs. 6 and 7, A designates a stove-body provided with an oven A equipped with a door A B designates a burner-box surmounting the oven and equipped with a top B which forms the cooking top of the range; 0, C designate front burners mounted in the burner-box; C, G designate rear burners mounted in the burner-box; and D designates a gas manifold which supplies gas to the tubes D, which, in turn, discharge into the mixertubes D which supply the burners. As is well known, the burners are supplied with a mixture of gas and air through the tubes D on the Bunsen burner principle.

The body of the range may he of any suitable construction, and the range may be pro- 1925. Serial No. 29,097.

vided with any suitable ovens, utensil compartments, warming chambers, or the like. In the illustration given, the range is shown provided with a single oven whlch 1S surmounted by the hurner-box B.

In the preferred construction the burnerbox B comprises side-walls l and a rear wall 2. These walls may form a continuation of the walls of the oven. The burnerbox also has a bottom wall 3 which is separated from the top wall 4 ofthe oven by a flue space 5. The burner-boxis open at its front side, as indicated at 6. The mixertubes D extend through this front opening into the chamber of the burner-box.

The top 13 of the burner-box which forms also the cooking top of the range, preferably comprises a perimetrical member 7 which is provided at its inner edge with a rabbet 7 and a pair of plates 8 supported by the member 7 and provided with holes in which are mounted the removal lids 9. At the front corners of the stove are the standards 6 which serve as additional supports for the top B. These standards flank the front opening 6 of the burner-box.

The burners are supported in the burner box in any suitable manner. In the illustration given, brackets 10 serve as supports for the rear burners.

A removable drip pan E is shown supported on the bottom wall 3 of the burnerox. Located adjacent the inner surfaces of the side-walls 1 of the burner-box are sec ondary air-supply conduits F. These are in the form of sheet-metal U-shaped members having attaching fiangesll which are secured to the side-walls 1 as by means of stove bolts 12. The side-wall 1 forms the fourth side of the square conduit.-

The conduits F preferably are open at their front ends as indicated at 13 and also at their rear ends as indicated at 13 Each conduit preferably is provided with a transverse partition wall 1 1 disposedmear the center of the conduit. This partition wall is flanked by discharge orifices 15. These orifices are located somewhat in front of the rear burners so as to be in position to supply air thereto. It is preferred to have the top wall of the conduit slope upwardly from inlet to outlet, as shown in Fig. 6.

The rear wall 2 of the burner-box is provided with an outlet passage, or passages, 2

V which open into a transverse flue 16 secured to the rear upper 'portion'of the-rangeand fitted with a stove-pipe 17.

In the use of the range, a mixture of air and gas passes through the burner-tubes to the burner. A secondary air supply reaches the front burners through the open front side of the burner-box. Contrary to what might be supposed, a sufficient secondary supply of air will not be carried to the rear burners from the open front side of the burner-box. On the other hand, when the air conduitsHF are employed, they readily serve to conduct a sufficient secondary supply of air to the rear burners to enable complete combustion to be effected. It has been found, in practice, that this expedient completely obviates the phenomenon of floating, and enables the rear burners to operate as efficiently as the front burners.

Inthe modification shown in Fig. 5, 1'"? designates a side-wall of a burner-box, and C designates a rear burner. In this modification, a secondaryair-supply conduit F opens through the side-wall 1 to the external atmosphere and opens at its inner end adja. cent the burner C The conduit F serves to furnish a secondary air-supply to the rear burner. However, it is preferred to employ conduits of greater length, such as the com duits F previously described, for the reason i that they serve to induce a better flow of air to the rear burners. a V c ,In the modificationshown in Fig. ,8, F designates an air conduit. This conduit is similar to the conduits F previously described, except that the conduit F? is provided with a sloping inner wall 18 which permits the lower portion of the conduit to project somewhat under the mixer-tube D of the rearburner.

In the modification shown in Fig. 9, 1 represents a side-wall of a burner-box similar to that described in connection with Figs. 14. In this case, a secondaryairsupply conduit F is provided at the rear corner of the burner-box. This conduit is provided with a front wall 19, with an ad mission orifice 20 at its rear end,'and with a discharge orifice 21 which opens through the inner side-wall of the conduit just back of i the front wall 19. The orifice21 is in posit-ion to furnish air to the rear burner.

It will be understood that in the modifications shown in Fig. 5 and Fig. 9, the secondary air-supply conduit may be duplicated atthe other side of the range.

The foregoing detailed descrlption has been given for clearness of understanding only, and no unnecessary limitations should 5 be understood therefrom, but the appended and afclosed cooking top, an outlet flue communicating with the rear portion of said burner box, front and rear burners located in said burner box, mixer tubes connected with said burners, and a secondary air-supply conduit within said burner box and ex-, tending parallel with the sides thereof'and having its discharge orifice in said burner box located adjacent the rear burner.

2. In a gas-range, thecombinationofa stove body provided with an oven and above said oven with a burner box having an open front and having a rear wall and side Walls and a'closed cooking top, an outlet flue cornmunicating with the rear portion of said burner box, front and rear burners located in said burner box, mixer tubes connected with said burners, and secondary air-supply conduits within said burner box and extending parallel with the sides thereof, each conduit having a single discharge opening, said opening being disposed adjacent one of the rear burners.

AUGUSTUS F. HARTER.

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