US1754110A - Grease absorber - Google Patents

Description

April 8, 1930. G KL W 1 1,754,110

GREASE ABSORBER Filed March 6, 1929 .fi'zzsiv @272. @TTORNEY Patented Apr. 8, 1930 GUSTAV KLEIN, OF PHILADELPHIA, PENNSYLVANIA GREASE ABSORBER Application filed March 6, 1929. Serial No. 344,826.

The present invention relates to an absorber for use in connection with gas stoves, especially adapted for fitting engagement upon the outlet from the oven of a gas stove,

the purpose being to absorb the grease and the like from the products. of combustion which pass off from the outlet pipe leading from the oven.

Heretofore it has been the practice to either place a quantity of metallic wool, commonly known as steel wool, shredded wire, or wire cuttings or wire shavings, in the outlet end of an outlet pipe from the oven of a gas range, or to provide a hood or cowl over the outlet pipe, with themetallic wool in the oulet end of the pipe, and it has been found that in so using the cowl and the metallic wool, there is produced what is known as carbon monoxide, which is very deadly when sufficient 2o quantities are inhaled. This is considered due to the metallic wool becoming clogged, hence causing insufficient ventilation to the oven, and when thereis insufficient ventilation, there is created what is commonly known in the stove business as a floating flame, producing monoxide gas.

Therefore it is the purpose of the present invention to provide an improved device consisting of a cowl, with a quantity of metallic wool, such as steel wool, shredded wire or wire cuttings or shavings, suitably supported in the upper end of the cowl, whereby as the products of combustion escape from the outlet pipe leading from the oven they pass or penetrate through the wool, the grease and the like adhering to the numerous loose ends of the wool, and thereby permitting the productsof combustion to pass on and be directed down toward the upper oven sheet of the gas range, where what effect from the products of combustion may have on the oven sheet may be'easily cleaned ofi.

Another purpose is to provide a cowl or hood fitting over the outlet pipe leading from 4.5 the oven, and instead of supporting the metallic wool immediately adjacent or within the outlet end of the outlet pipe leading from the oven, it is a further purpose to support the metallic wool in the upper end of the cowl or hood a substantial distance from the outlet end of the outlet pipe, still allowing the products of combustion to pass through the wool andescape therefrom and allowing the grease and the like to adhere to the loose ends of the wool, hence preventing clogging or obstruction in the path of the products of combustion.

Such hoods or cowls which have heretofore been used have been formed from sheet metal bent to the proper shape with soldered, spot welded and similar joints, in order to fasten the parts of the metal together, an example of this character of construction being disclosed in the patent to Lewis Sulzbach issued February23, 1926, Patent No. 1,574,713.

Hence, it is still a further purpose to eliminate the above character of construction and in lieu thereof to provide a one piece hood or cowl integral throughout, tapered from the lower portion upwardly with the front. end rounded eliminating all corners and angles, the cowl being fastened to the upper extremity of the outlet pipe leading from the oven, the cowl being extended forwardly of the outlet pipe, so as to direct the products of combustion down toward the upper oven sheet of the gas range.

In making a cowl of sheet metal with joints it is expensive, and furthermore it is not possible to accomplish the manufacture of the hoods or cowls in such a manner on proper paying production basis. l/Vhereas in making the cowl of a single piece integral throughout, it is possible, in the end, to manufacture extensively and on excellent production basis, especially so after allowing for the expense involved in making the proper dies, in order to produce a cowl which is seamless and integral throughout.

A further purpose is to provide for the use of metallic wool, such as steel wool, shredded wire or wire cuttings or shavings in the upper small end of the cowl, and while it is intended to use this wool, it is not placed in direct contact or connection with the up per end of the outlet pipe leading from the oven, but to dispose the wool in the path of the products of combustion, so that such products may pass to the inner portion of the upper end of the cowl, Where the grease from the products will adhere to the wool and especially its loose ends, the products passing on through the wool and then directed down and forwardly on to the oven sheet.

While it is the purpose to retain the W001 by friction in the upper end of the cowl or hood, it is an additional purpose to provide means to assist in supporting the metallic wool in the upper end'of the cowl in the direct path of the products, so that the grease and the like will adhere to the loose ends of the wool.

It is to be understood that the particulars herein given are in no way limitative, and that while still keeping within thescope' of the invention, any desired modification of detailsand proportions may be made in the construction of the appliance according to circumstances.

The invention comprises further features and combination of parts to be hereinafter set forth, shown in the drawings and claimed.

In the drawings Figure 1-is a view in front elevation of the improved cowl or hood constructed in accordance of the invention, showing it made in one piece integral throughout. 7 a

V Figure 2is a sectional view on line 2-2 of Figure 1.

Figure 3is a view of the blank in a position relative to the two members of a die, so that the cowl can be made or pressed into shape.

Figure 4.is a sectional view showing the two sections of the die, with parts of the metal forming the cowl projecting in order to be subsequently severed in order to provide the proper finished edge to the lower larger end of the cowl.

Figure '5is a view after the superfluous metal is cut away, to show the cowl asis used.

Figurefiis a view of a modified construe tion of cowl, wherein the front end of the cowl is restricted. I

Referring to the drawings, 1 identifies a pipe section of slightly tapered contour though not necessarily, and while the pipe section may be any suitable shape incross section it is preferably elliptical or elongated in cross section so as to fit the outlet pipe leading from the oven. Most of the outlet pipes leading from ovens of gas ranges are elliptical or elongated in cross section, hence the reason for constructing the pipe section 1 correspondingly.

. However where the outlet pipes from ovens are of cylindrical contour in cross section it is possible to depress or shape the pipe section 1 in order to fit the cylindrical outlet P P Mounted upon the outlet section 1 at its upper end is a cowl or hood, which may be of suitable proportions, and preferably shaped as shown in the drawings. This cowl or hood 2 may be constructed of a single piece of sheet metal 3, and preferably the single piece is circular, and in constructing the cowl it is placed between the two members 4 and 5 of the die, the sheet metal taking the shape of the male and female of the die.

The opposed faces of the male and female members 4 and5 of the die are tapered, one conformin to the other, and certain portions 6 of these aces are more or less flattened, so

"as to shape the cowl with a more or less flatdownwardly and forwardly.

The opposite faces of the two members of the die, that is where the smaller end of the cowl is formed, are rounded, all corners and angles entirely eliminated, in order to pro-' vide for a rounded upper end for the cowl, said rounded upper end being directly over, though slightly toward the rear, and in alignment with the upper end of the pipe section 1, so that when the products of combustion ascend they will percolate through the metallic wool, the grease adhering to the particles and loose ends of theIwool, the products proper passing downwardly and forwardly from under thehood and toward the top of the oven sheet. Opposed sides of the cowl have open ings 8 toreceive'a supporting member 9 of the shape shown and which member in turn supports the metallic wool in position, thou h it is possible to support the metallic wool y frictional contact with the inner surface of the cowl or hood, the metallic wool being identified by the numeral 10. After the'on'e piece of sheet metal is formed to the desired shape between the two members of the die, the

projecting part of the metal may be cut away, in order to provide a circular marginal edge at the base of the cowl.

The invention having been set forth, what is claimed is In a grease absorber for gas ranges, the combination with a pipe section to fit the outlet pipe leading from the oven of the range, of a cowl mounted upon and carried by the upper end of the pipe section, said cowl comprising a body tapered toward its upper end in a relatively small angular sha e from the front to the back of the cowl, an being of a width substantially equal to and spaced above the upper end of the pipe section, said structural area of said upper end of the cowl constituting a pocket for the reception of metallic wool spaced a substantial distance above and directly over the upper end of the pipe section, the back of the cowl being straight and substantially in the same direction as the back wall of the pipe section, said upper end of the cowl having an apex positioned substantially toward the perpendicular center of the pipe section the front wall of the cowl being disposed on a relatively steep incline from the apex forwardly and downwardly and overlying the pipe section a substantial distance, whereby the grease may be absorbed by the entangled portions and loose ends of the metallic wool, while the products of combustion free of the grease are deflected downwardly and forwardly, and means extending side ways across the cowl for supporting said metallic wool.

In testimony whereof I affix my signature.

GUSTAV KLEIN.

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