US899122A - Stove. - Google Patents

Description

L. MILLER@` sTovB. APPLIOATIOXIILED NOV. l2, 1901.

899,122. 'l Patented septb 22,`1 9o8.\

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furnaces and particularly contemplates 'the v'ff onirico sT Application filed ITovembei 12, 190". Serial No.' 401,845. n

zen of the United States, residing at Elwood,

in the county of Madison and State of Indiana, have invented certain new and useful Improvements in Stoves, of which the following is a specification.

My invention relates to heating stoves or provision of certain novel mechanisms operating the grate, ash-pit and drafts to be used in combination with such a stove as described and claimed in my application filed April 2, 1906, and serially numbered 309,536.

My invention further and specifically resides in the following features of construction, arrangement and operation as will be hereinafter described with reference to the aecompanyin g drawings, in which like numerals are used to designate like parts throughout the. several figures, and in which- Figure 1 is a vertical sectional view of my improved stove, F ig. 2 is a horizontal sectional view on the line 22 of Fig. 1, Fig. 3 is a similar view on the line 3 3 of Fig. 1, Fig. 4 is a fragmentary detail view of paits to be hereinafter speci'lically described. Fig. 5 is an elevation of the ash-pit door operating device, and Fig. 6 is a detail sectional view on the line 6 6 of Fig. l.

In the practical embodiment of my invention I provide a stove comprising a base plate 1 forming the bottom of the ash-pit 2 mounted on suitable legs 3 and provided with a central opening 4 and an annular upstanding flange encircling the same. The ash-'pit 2 is provided with aV door 6 hinged with the front thereof to swing in a vertical pla-ne, and has arranged therein a circular scraper comprising a hub 7 encircling the flange 5 and a circumferential rib Sconnectedto said 'hub by webs 9. The scraper is arranged upon the base plate 1 within the 4ash-pit, said base plate being provided with an opening 10 therethrough rovidedwith a swinging door 11 operated liy a handle 1,2 pivotally mounted at 13 in a bracket 14 extending below the opening 4 to move away from said opening 1() to provide for 'the dumping of ashes therethrough by the scraper. The circumferential ring 8 of the scraper is provided with a lower rack face 15, adapted to be engaged by a pinion 16 mount ed on a rotatable shaft 17. The shaft 17 is rotatively mounted in a bearing 18 below the opening 10 to swing 1n a vertical plane Specific-ation of Letters Patent.

ArnsPiirnN-T onirica.

Lewis MILLER, or ELwooD, INDIANA.

s'TovE.

Patented sepa-e2, 190s.

through said 4opening' to engage its pinion 16 with the rack as described, the forward end of said shaft being arranged through a frame 19 formed in a circular depending flange 2() of the base plate 1. The frame 19 has 'a pivot member 21 secured thereto having a recess therein arranged to engage beneath the forward portion of shaft 17 when the sa me is swung upwardly to hold the saine in position while said shaft is being rotated by a suitable handle upon its squared end 22,

to rotate the scraper and clean the base.

plate by means of the webs 9 and the opening 10, it being understood thatthe door l1 has been previously moved to the position shown in Fig. 2 by the handle 12.

Arranged vertically above vthe, central opening 4 is an air pipe 23 leading within an enlarged air shell 24 having a rino 25 arranged at its upper end and irovided with openingsl 26 therethrough, through which the air after its passage upwardly through the stove is discharged into the rooin. EX- tending from the u )per edge of the ash-pit 2 is an outwardly flaring Alire-pot 27 within which is arranged a circular grate 28 having a rack 29 upon its lower face arranged to be rotated or engaged by the pinion 30 mounted on a shaft 31 extending through the wall of the ash-pit 2 and provided with an outer squared portion P2 for the reception of a handle or shaker. fire-pot is grooved for the reception of an annular shell 33 forming a casing for the products of combustion to circulate about the air shell 24 andpipe 23, and connected at its upper end to the ring 25 provided with closed pipes 34 for conducting said products .i door 39 formed through the shell 33 provides means for supplying fuel to the fire-por' 27', said shell 33 being further provided with an outstanding heat deflecting ring 43 at its connection with the lire-pot 27. The deflecting ring 40 is provided with a short shaft 41 journaled in brackets 42 The upper edge of the' formed thereon and provided with an operl aeter described, of the ash-.pitiirovided withan opening therethrough, ash ing door nor-- ating screw 43 by which said shaft may be rotated, a spring 44 being arranged between the end 'of the shaft outside one of the brackets 42 to bear thereagainst and pre-V with a rotating valve 47 associated therein' comprising a depending tubular port-ion 4S 'having a. circular outstanding ilange [19 at its upper end and a plurality of blocks 52 carried by said valve and spaced apart to be moved opposite openings 46 to close the same or to be moved to the position shown in Fig. 6 to open the same. The tubular -fpor'ion 48 is preferably of a substantially smaller diameter than the pipe 23 in order to aliow air to pass between the saine. and said-pipe and into the tiropot 27 through the openings 46 to mix with the smoke and gases and materially aid in the combustion thereof. The valve 47 may be rotated by a vertical stein 50 extending centrally upwardly through the air shell 24 and provided with an operating arm 51, extending from its upper end V through one of the openings 26 of the ring 25. The stein 5() may thus be rotated by the oscillatory movement of said arm 5l and is rigidly connected to the valve 47 b v a U-shaped frame 54.

hile VI have herein shown and described my improvement-s in connection and working with a stove, it will be understood that they are just as readily applicable to a furnace and its component parts, with only nominal changes falling within the terms of the following claims.

Haring thus fully described my invention, I claim:

1. T he combination in a stove of the charnially closing said opening, an aiinuiar scraper arranged within said ash-.pit provided with a lower rack face, and a rotatable ver' tica-ily movable shaft mounted below said opening and carrying a pinion adapted for engagement with said rack when said door Iis opened to rotate said scraper, substanl rotatable shaft mounted below said opening and provided with a pinion adapted for en# `gagement with said rack to rot-ate the same when said door has been opened, and means for` holding said pinion in engagement with said rack, substantially as described.

In a stove of the character described, the combination of an outer shell forming a combustion chamber, an inner air chamber mounted within said combustion chamber having communication through said outer shell to the atmosphere adjacent its upper end, an air supply pipe communicating with said air chamber from below said combustion chamber, said air pipe having openings formed therethrough and communicating with said combustionchamber, and a valve comprising a tubular portion of reduced diameter within said pipe, having a. circular ,flange closing said pipe above said openings therein, and provided with spaced blocks corresponding to said openings, and means for rotating said valve to register said blocks land the spaces between the same with said openings, substantially as described.

In testimony whereof l aflix my signature in presence of two witnesses.

LEWIS MILLER. Witnesses:

Z. D. HUrrnaN, J. H. FENDER.

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