US110274A - Improvement in furnace-stoves - Google Patents

Description

JAMESV o'Ln, orv Pirrsnu'c, PENNSYLVANIA.

Letters Patent No. 110,274, dated December 20, 1870.

IMPROVEMENT IN FURNACE-STOVES.

The Schedule referred to in than Letten Patent and making part of the saine.

To all whom it may concern:

Be it known that l', JAMES OLD, of the city of Pittsburg, in the county of Allegheny and State of Bennsylvania, have invented a new and useful I mprovcmentin Stoves; and I do hereby declare the following to be a full, clear, and exactdescription thereof', reference being had to the accompanying drawing, in two sheets, in whicl1 Figure 1 is a perspective view of my improved furnace-stove;

Figure 2 is a sectional view thereof;

Figure 3, (sheet 2,) a front view oi' the same, with conical top;

Figure 4 is a sectional view of the stove-top of fig. 3;

Figure 5 is a side view of thc rotating grate-ring;

Figure 6 is a perspective view of the ash-pit;

. Figure 7 isalike-viewfof-ash-pit,rotating-ling, and circular grate; and

Figure 8(sheet 1) is a pian view of the ring and grate. Like letters of reference indicate like parts in each.

g My-invention'rclates to improvements in upright cylindrical and egg-shaped stoves, and stoves having the form of an inverted cone, commonly known as furnacestoves; and consists in an improved constructiouot` grating, and an improved arrangement of fire-pot, air,-

ues, and reverberating cover.

To enable others skilled in the art to make and use my improvement, I will proceed to describe its con# struction'and mode of operation.

Idn iigs. 1 and 2, b is the casing or shell of the stove, un Ala' the top-plate.

Inside the shell is a fire-pot, f, made of fire-clay or other suitable material, and ol' any desired form, the upper open cud of which comes q'uite neahto the topplate b', leaving suiicient room, however, for the smoke,

' gases, 8tc., from the fire to pass over the upper edge of the fire-pot f; along the upper part o f the chamber g', and escape at the smoke-hole b". ,p

Through an arrangement-of dampers, presently to be d escribed, air is supplied, when desired, by grooves or air-passages g, lig. 2, which pass 11p-between the tire-pot f and the shell b, and supply air, through the chamber g', to the fire at the upper edge ofthe lirepot, the better to eilect the combustion ofthe othervwise unconsnmed carbon.

- The ykettle-rnboiler containing whatever is to be heated is placed in the' stove-hole shown in iig. 1,.so that its lower end shall como inside or directly over the .re4pot` f, the edges of which come well up around the kettle, andbring the heat and aiiamc in contact therewith before the latter can escape through the pipe hole b'. In iig. 3 I have shown a similar arrangement of tirepot f and lower s hell b, applied te an egghapcd stove,

in which d represents the upper conical part of the shell, and d the point of exit for the smoke.

In such stoves, that is, upright shell-stoves, of cggshape, cyl indricnl, or other like form, I introduce a reverberatory tile, h, directly ovcrtlie lire-potj'; in a. horizontal position, suspend it on the inwardly-projecting lugs z ot' the shell d, but so as to leave a smoke-tine, It', extcndin g all around between the edge of the tile h and the shell d, except where the lugs e' are arranged.' The effect o suoli a tile so arranged iu promoting the combustion of smoke and gases, and preventing the rapid escape and-waste of heat, is already well known inthe art. It also has the effect to throw the inside heatl against the shell of the stove, and so increase the outside radiation of heat from the. tove.

In the bottom part of the stove a represents a c linof a diameter about equal to or a little in excess of the diameter ofthe circular grate,.preseutiyto be described.

0n the inside ofthe ash-box a are cast a series of incliues, a', (lig. 6,) three or more in number.

Immediately inside the ash-box a au annular ring, c, (Iig. 5,) is arranged by means of lugs c' c", one, c', of each set operating ou the upper part of one of the inclines a', andthe other, c, on the lower face, so as to hold such ring securely in position,A as il; goes up and down, uuderthe eil'cct of a rotary motion imparted to it, as

`presently to bc described.

lThe upper face or end of this ring c' constitutes a part of the grating, as shown in iigs. 7 and 8, ,and when rotated its lugs c c, acting ou the inclines a', cause it to act, in stirring, agitatirig, or shaking up the lire, by a compound rotary and vertical motion. This ring c I arrange so that it shall operate at or near the face vof the firepot, so as to stir the fire at that part ofthe {irechamber, prevent the coking ofthe coal on the inside lYacc ofthe tire-pot, and promote the combustion thereotat the outer edge ofthe re. This is au important feature of my improvement, since it secures the most rapid combustion next the shell of the stove, where theheat developed is most economically applied, the fuel at the center of the {irc-chamber being disturbed but little, if at all.

This agitating-ring is notched or recessed at two or more suitable pointsas at c, in' which notches the radial bars n' of the circular grating n u' operate. This grating. n u' may be of any-desired construction, provided only that it be capable of rotating, and be of suit-V able form or have suitable devices for engaging the ringA c and imparting to it a rotary motion.

The grating u n has a handle, m, by which it may receive the motion dcscribed,'or a removable handle may be inserted in the usual way. Then, as the grating n n' is caused to rotate intermittently and alternately in opposite directions, its radial bara n', engaging the ring c by its notches e, cause the ring to rotate by a like motion, and also move up and down, by means of its lugs cc operating on the inclines a'.

While claiming the devices described and their mechanical equivalents for imparting a vertical and rotary motion to the ring c, I also claim the ring c, when so constructed and arranged as to operate iushaking' oragitating the re by a direct vertical motion, whether such direct vertical motion be effected by a lever or other equivalent device, as I am not aware of a prior construction or use of a vertically-moving annular ring as a part of a stove-grate.

The ring c may be cast in onel.piece or in sections, and such sections be bolted together, or so connected with the agitating devices as to move together in producing the eiects above described.- i,

The outer ring of the grating n n', which comes under the tire-pot f, has a series of air-passages, s s, which correspond in number and arrangement with the grooves g in the sides of the lire-pot f, and with air.- passages s s in the ring v, on which the re-pot rest's.

-Then, by shifting the lever m, the air-passages s s' and grooves g can be made to correspond, so as to furnish a supply of air to the lire at the upper mouth of the fire-pot f, ae above described, or such supply may be cnt off at pleasure.

used in connection with open-front stove and fire-place grams; also, that such cover has been combined, in a Asheet-bron topped stove, with a contracting or tapering throat, which leads from the annularspace around the cover to the center of the chamber above, as shown in patent tol A. J. Redway, dated 29th September, 1868.4 I hence disclaim such arrangement, and limit myself in this part of my invention to the arrangement set forth in the last of the claims hereunto annexed.

lVh-at I claim as my invention, and desire to secure by Letters Patent, is

1. A rotating grating, vn n', the. outer ring of which has air-passages, s s,'in combination with air-passages 'leading .thenceto an annular chamber, g', between the lire-pot f and stove-shell 1), substantially as described. 2. A ring, c, the upper end of which forms a part of the stove-grating, when combined'therewith so as to operate, byra direct vert-ical or vertical and rotary motion, in agit-,ating the fire, substantially as set forth.

3. The ring c and ash-pit a, 'the one having an ar-A rangement of lugs, and the other a corresponding arrangement of inclines, for securing a'vertical and intermittent rotary motion of the ring, substantially as described.

Witnesses:

A. S. N IcHoLson, G. H. CHRISTY.

Images