US1264373A - Fireback for stoves. - Google Patents

Description

L B. DAVlS FIREI3ACK FOR STQVES. APPLICATION man lUL Y 16. 1917.

Patented Apr. 30, 1918.

7 BRADFORD DAVIS, 0F READING, PENNSYLVANIA.

FIREBACK FOR STOVES.

Specification of Letters Patent.

Patented Apr, so, iaia Application filed July 16, 1917. Serial No. 180,698.

To aZZ whom it may concern:

Be it known that I, BRADFORD DAVIS, a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Firebacks for Stoves, of which the following is a specification.

This invention relates to improvements in stoves, and it pertains more particularly to the construction of the firebrick, forming the Wall between the fire box and the oven of an ordinary cooking stove.

In the use of firebrick heretofore, it has generally been the practice to hold this brick in position by meansof metal clips, engaging the upper edge of the firebriek.

In this construction, these metal clips or fingers will be destroyed by the flame from the fire bed, and the firebrick become loose and fall away from theoven surface, thus reducing very materially the effectiveness of the oven.

In my present invention I have provided a firebrick in which no portion of the metal used to retain the brick in position is exposed directly to the heat or flame from the fire box, but which will still securely engage and retain the firebrick in position.

Another feature of my invention is the ease with which the firebrick may be re placed and removed.

The invention is more fully described in the following specification and clearly illustrated in the accompanying drawing, in which Figure 1 is a sectional view of a portion of an ordinary cooking stove, taken through the line 11 of Fig. 4;.

Fig. 2 is a front elevational view partly broken away,'of the firebrick, as viewed in the direction of the arrow in Fig. 1.

Fig. 3 is an end view of the firebrick, showing a portion of one of the side brick members in engagement therewith.

Fig. 4. is a fragmentary plan View of section B and parts associated therewith.

Fig. 5 is an elevation of the inner face of the firebrick section B, and Fig. 6 is a plan view thereof.

Referring to the drawing- The numeral 1 designates the fire box of an ordinary'stove and 2 the front vertical wall of the oven against which the firebrick 3 is placed. This wall 2 is formed with a longitudinal groove 4: in its base to receive a flange 5 on the firebrick members.

In the present instance I form this firebrick in two like sections, designated by the letters A and B. i

These lirebrick members are each formed with a lower flange 5, as stated, and also with an end flange 6 and these flanges 6 are adapted to enter notches 7 in the side firebrick members C.

The members A and B are each formed with a beveled edge 9 where they meet, at about the longitudinal center ofthe fire box, and each member is cut away on its inner or rear face, at the top, designated by the numeral 10. The numeral 11 designates a lug, formed on the face of the oven wall, and this lug registers with the cut away spaces 10 on the members A. and B. Both the members A and B are provided at the upper inner corner with an inlaid metal contacting body 12, adapted to contact with the lug 11, to prevent wearing of the firebrick at that point. The edges of the lug 11 are inclined, as is the inner edge of each of the contact members 12, thus forming a dovetail engagement between these parts, by means of which the members A and B are held against the oven wall. The cut away spaces 10 depend below the line of the lower edge of the lug 11, and this cut away space extends about half way across the bevel edge of the members A and B, as shown clearly in Fig. 5, which shows the inner face of the member A.

When it is desired to remove the members A and B from engagement with the oven wall, the member A is moved upward until its lower flange is above the edge of the base member groove 4, which movement will bring the lower edge of the cut away space 10 against the lower edge of the lug 11; the member A. is then moved to the right, until its side flange 6 is free from its engagement with the side firelorick member C; the memher A may then be easily withdrawn, and the other member B may be removed in the same manner. In replacing them, the member B is of course replaced first, on account of the tapered inner edge 9.

It will be noted therefore that when the two part firebrick is in position, the firebrick metal parts, while they will securely retain the members in position, are protected from burning, and, inasmuch as a fairly close fit at the meeting point of the beveled edges 9 may be secured, the result will be a snbstantially solid wall of firebrick; one that may easily be removed and replaced, but also, one in which this removal and replacement is to a great extent Overcome, inasmuch as the life of the firebrick is very materially in creased, due to the fact that it is at all times held securely in position against the oven Wall, and the tendency to fall away therefrom overcome. p p v The contact members '12 are preferably embedded in the firebrick members, and are flush with the surface thereof, both as to the inner face and the top, as shown clearly in Figs. 5 and 6.

It is evident that the parts described may be changed as to form and perhaps other- Wise modified Without departing from the spirit of my invention, but what I claim and desire to secure by Letters Patent is 1. In a stovethe combination of a fire box, an oven wall forming one vertical side of the firebox, saidwall having a longitudinal groove in 'its base; a two part firebri ck resting against said Wall; a lug formed onsaid Wall at the top, said lug having inclined edges; each of the firebrick members having a bottom and a side flange adapted to hold it in position, a metal member inlaid in its body at the upper inner corner in dovetail engagement with said lug, and having a cut away space at its upper inner corner to permit the upward movement of the firebrick while resting against the oven wall.

2. In a stove the combination of a fire box; an oven wall formed with a retaining groove in its base; a two-part firebrick in engagement with said groove; a lug 011 the oven wall at the top to hold the upper ends of the firebrick members and a metal contacting member embedded in the firebrick members and in dovetail engagement with said lug.

3. In a firebrick for stoves, the combination of an oven wall formed with a bottom groove, and a lug at its upper end; with a two part firebrick having beveled meeting edges,.flanges at their outer edges engaging the side walls of the oven and flanges at their lower edges engaging said bottom groove, and inlaid metal contacting members in dovetailed engagement with the lug on the oven wall.

In testimony whereof I ailix my signature.

BRADFORD DAVIS.

Copies 61! this patent inay be obtained forifive'eents each, by addressing the Commissioner of Patents, Washington, D. C.

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