US1199045A - Sectional lining for fire-bowls. - Google Patents

Description

0. M. BIRELEY.

SECTIONAL LINING FOR FIRE BOWLS.

- APPLICATION FILED MAY 22.15MB.

Patented Sept. 26,1916;

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' ITII OTTO M. BIRELEY, OF INDIANAPQLIS, INDIANA, ASSIGNOR INDIANAPOLIS, INDIANA, DOING BUSIN ING COMPANY.

T0 HARRY RYBOLT, OF UNDER THE NAME OF RYBOLT HEAT- SECTIONAL LINING FOR FIRE-BOWLS.

Application filed May 22, 1916.

and stoves, and the object of the invention is to provide a lining in separately removable sections so constructed as to reduce the tendency to warp and burn out to a m1n1-.

mum, and always easily removable when damaged by the heat, and which will pro tect the fire pot, prolong the life of the furnace and facilitate and cheapen repairs to that part which is subject to the greatest deterioration.

I accomplish the above, and other objects which will hereinafter appeal, by the mechanism illustrated in the accompanying drawing, in which- Figure 1 is a vertical section of a fire pot and lining therefor embodying my inven tion, the section being on the line 11 of Fig. 2. Fig. 2 is a top plan view of same. Fig. 3 is an elevation looking at the inner side of one of the fire pot sections and Fig. 4 is a rear or outside view of the same.

Like characters of reference indicate like parts throughout the several views of the drawing.

The walls 5 of the fire pot are in the form of an inverted hollow truncated cone deeply corrugated up and down inside and outside to increase the strength and radiating surface of the pot and to provide free straight inside air passages at equal distances all around. It is preferably in two horizontally divided members as shown to reduce the chances of. cracking under the action of the heat to a minimum.

The fire pot as above described is lined with a cast iron lining in vertically divided These sections taper clownwardly and have beveled meeting edges which hold them in'the downwardly tapering fire pot without any other support than is afforded by the walls of the pot after the sections are once assembled. To aid in the assembly and also to prevent the rising of one or a group of the sections after they Specification of Letters Patent.

Patented Sept. 26, 1916.

Serial No. 99,181.

have become somewhat warped and thereby loosened or loosened by the expansion of the fire pot, particularly by the shaking of the grate bars to remove ashes while the fire pot is full of cinders and coal, I provide a notch 7 in one of the vertical edges of the section and provide a h1g8 of corresponding di mensions on the other edge. In assembly the lug 8 of one lining section enters the notch 7 in the section next to it, in the manner shown in the drawing, thereby locking the sections together against any pomible individual longitudinal movement. The weight of the lining as a whole and its tapering shape which fits in the corresponding taper of the interior of the fire pot keep the lining in position in the pot.

To equalize the expansion between the lining and the fire potI provide circulationslots 9 between each pair of sections, formed by notching the edge of each section in half the width of the whole opening, leaving the edges of the sections near the tops and bottoms of the latter intact as shown.

As the hottest part of the fire is generally midway of the height of the fire pot I thicken the lining sections gradually from each end toward their rniddles as shown, the increased thickness being all on the inside of the section which increases the lower inside taper causing the ashes to discharge while leaving the outside straight up and down; and to insure a circulation of air between the lining and the fire pot where the walls of the corrugations in the latter would otherwise contactv the lining I form the lining with bottom'lugs 10 which hold it away as shown in Fig. 1. To additionally ventilate the top of the. lining which is more exposed to the heat than the bottom portions, I provide openings 11.

It is obvious that one or more of the sections of the lining may be readily renewed when necessary, which will be less expensive than to substitute an entire new lining.

While I have described my invention with more or less minuteness as regards details of construction and arrangement and as being embodied in certain precise forms, I do not desire to be limited thereto unduly or any more than is pointed out .in the claims. On the contrary, I contemplate all proper changes in form, construction and arrangement, the omission of immaterial elements and the substitution of equivalents as circumstances may suggest or as necessity may render expedient.

I claim 1. The combination with a downwardly tapering corrugated fire pot, of a cast iron lining in a plurality of separate downwardly tapering sections said sections having spaced apart lugs next to the fire pot at their lower ends to bear against the corrugations of the pot and establish an air space, said lining as a whole being held from downward movement by the taper of the pot, and interlocking means between the sections to keep them from being independently raised.

2. The combination with a downwardly tapering corrugated fire pot, of a cast iron lining in a plurality of separate downwardly tapering sections having elongated slots at between them and having spaced the joints apart lugs next to the fire pot at their lower ends to bear against the corrugations of the pot and establish an air space, each section having a lug extending across one of said slots and entering a notch in the adjacent:

section, said lining as a whole being held from downward movement by the taper of the pot.

3. An inverted truncated conical bowl, a

joints between them and each sectionhaving alug extending across one of said slots and entering a notch in thead acent section.

In witness whereof, I have hereunto set my hand and seal at Indianapolis, Indiana, this 8th day nine hundred and sixteen.

OTTO BIBELEY. [n s] Copies of this patent maybe obtained for five cents, each, by addressing the, Commissioner of Patents, Washington, D. G.

of May, A. D.OI1G thousand

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