US361666A - Stove - Google Patents

Description

-2 Sheets-S heet 1.

B. A.BAXTER.

(N0 Model.)

STOVE.

v i Patentedlkpr. 26

2 Sheets-Sheet 2.

(No Model.)

B. A'. BAXTER.

STOVE.v

. Patented Apr. 26, 1887.

UNITED STATES PATENT ()FFICE.

BERRY A. BAXTER, OF MANSFIELD, OHIO.

STOVE.

SPECIFICATION forming part of Letters Patent No. 351,666, dated April 26, 1887. Application filed December 9, 1886. Serial No. 221,061. (No model.)

To all whom it may concern.-

Be it known that I, BERRY A. BAXTER, a citizen of the United States, residing at Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in Stoves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in stoves, and more particularly to that class of stoves in which the front is removable,- and which are commonly known as open-grate or fire-place stoves.

Hitherto the removable front or blower has been constructed to be raised and lowered by a pair of counterbalanced sector-bars in engagement with rack-bars attached to the blowers near their edges, the rack-bars being connected with each other by a bar attached to the counter-weights and extending through curved slots in the ends of the stove.

The objection has been that the pressure of the sectorbars against the rack-bars in raising and lowering the blower has had a tendency to force the edges of the blower in close frictional contact with its front bearings, causing it to slide with a considerable resistance, due to the sliding friction; and, furthermore, when the teeth have become somewhat worn, there is a tendency of the blower to slightly tilt and bind, in addition to the liability of slipping a tooth on one side or the other and necessitating the removal of the sector-bar or the removal of the parts and their readjustment.

The object of my present invention is to provide blower-actuating mechanism which shall be free from the objectionable features of those hitherto in use, and which shall be simple and convenient.

A further object is to provide a pair of counterbalanced levers for actuating the blower, which shall be capable of automatically looking the blower in elevated adjustment, and which shall exert little or no lifting strain when the blower is depressed.

A further object is to locate the lever-actuating shaft in a cold-air chamber, and thereby lengthen its life.

With these ends in view my invention consists in certain features of construction and combinations of parts. as will be-hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a front view of a stove with the blower partially elevated. Fig. 2 is an end view with the outer wall broken away and the blower in depressed adjustment. Fig. 3 is a similar view with the blower in elevated adjustmenuand Fig. 4 is a partial horizontal section in the plane of the lever-actuating shaft.

A A represent the inner end walls of the stove, in contact with which the fire-brick lining a is placed, from the bottom of the grate B as far up as the fuel is liable to be piled, as is usual. The stove here represented is of rectangular shapein horizontal section and provided with an attractive top, 0, extending down over the front a short distance, as shown. The grate D is made to project a short distance in front of the side walls, and the ash-pit E opens to the front on a plane with the hearth 6. This, however, is only one of numerous forms of stoves to which my improvements are adapted, and they might be employed to advantage with a stationary fire-place grate, the side wallsand hearth being modified to receive the blower and its actuating mechanism.

F represents the blower. It is constructed and when at its greatest elevation completely closes thevfront of the stove above the grate. It may be lowered to rest on the hearth at the bottom of the stove, or, as shown in the drawings, may pass down through a narrow slot, f,

in the-hearth and become hidden from view. Its edges, where they meet the edges of the stove-walls, are preferably formed V-shaped, as shown at G, in order to register with corresponding grooves, g, in the walls and prevent lateral displacement, and serve as guides to insure a regular movement in its passage up and down.

Between the inner walls, A, .and the outer to slide up and down in front of the grate D, I

walls, H, at the ends of the stove, are located the counterbalance-levers I, firmly secured to a rock-shaft, K, extending through the stove from end to end. The levers I are provided on their front ends. with smooth-faced sectorloo bars 6 and on their rear ends with counterbalance-weights 1', preferably formed integral with the levers.

The upper ends of the smooth-faced sectorbars 2' are connected to the edgesof, the blower by means of spring-metal bands L, the upper ends of which are attached directly to the sector-bars, and the lower ends of which are at tached to the inner faces of the wings m on the clips or cars M. The opposite wings, on, of the said clips or ears are bolted, screwed, riveted, or otherwise secured to the edges of the blower. The outer faces of the wings in project behind the edges of the jambs h of the walls H, and serve to lock the blower against outward displacement.

One end, 7c, of the rock-shaft K projects through the outer wall, H, and is squared or otherwise shaped to receive a crank or lever, N, for rocking it. To prevent the shaft K frombeeoming exposed to the action of the flame and heat, and thereby becoming warped or burned out, the fire-back O of the stove is constructed to slant forwardly over the firepot, and after passing in front of the shaft K it recedes again to the rear of the smoke flue. The back 0 is provided with openings 0 at the top and bottom, to admit cold air into contact with the shaft K, the draft becoming naturally established by the rise of the heated air at the rear of the fire-back O.

The protection of the shaft K is a matter of great importance to the perfect operation of the blower, as a slight warpjor bend would be liable to throw one or the other of the sectorbars i out of true, and thereby tend to tilt the blower and cause it to bind.

When the blower is in depressed adj ustment or lowered to its limit, the lever I will not exert sufficient upward strain to raise the blower. When it is desired to elevate the blower, the shaft K is rocked by the lever N to start it, and as soon asthe lever I becomes slightly tilted the weight 2" will begin to assist, and will so continue to do until the blower reaches its elevated adj ustment, as shownin Fig. 3. The tendency of the weighted end of the lever I will then be exerted to antomatically lock the blower in its elevated adjustment. The strain of the bands or ribbons L will be even and continuous on the blower. There will be no tendency to wearand loosen, H as in the case of intermeshing teeth. The

movements of the parts will be attended with very little noise, and the forward bend of the fire-back will accomplish the double purpose of reflecting additional heat into the room and of forminga convenient'protection for the lever-actuating shaft.

It is evident that slight changes might be. resorted to in the form and arrangement of the several parts described without departing from the spirit and scope of my invention; hence I do not wish to limit myself strictly to the construction herein set forth; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is- I v 1. The combination, with a fire-chamber permanently closed on three sides and the top, of a vertically-movable blower and a pair of counterbalanced actuating levers connected with, the blower by bands, whereby the blower is raised and lowered in front of the firechamber, substantially as set forth.

2. The combination, with an open front stove and a blower adapted to rise and fall in front of the stove, of a pair of counterbalanced levers mounted at the ends of the stove and having curved ends attached to the edges of the blower by flexible metallic bands, substantially as set forth.

8. The combination, with an open front stove and a blower adapted to rise and fall in front of the stove, of a pair of counterbalanced levers located at the ends of the stove and centered on a rock-shaft-extending through the stove, the ends of the levers being connected with the blower, substantially as set forth. z

4. The combination, with the blower, of the actuating-levers having smooth curved ends and the flexible metallic bands connecting the ends andthe blower, substantially as set forth.

5.- The combination, with the verticallymovable blower and the blowcbactuatin'g levers located in recesses between the end walls of the stove, of the lever-supporting shaft extending through a cold-air chamber at the back of the stove, substantially as set forth.

6. The combination, with the verticallymovable blower and the blower-actuating levers, of the locking-ears secured to the sides of the blower and the flexible metallic bands connecting the ears with the actuating-levers, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

BERRY A. BAXTER.

Vitnesses:

EMMETT O. BAXTER, O. G. BAXTER.

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