USRE1397E - Improvement in stoves - Google Patents

Description

REISSUED FEB. 3. 1863. J. G. TREADWELL L W. HAILES.

STOVE.

3 SHBETSJSHEBT l.

lll/40.5.9.2. --2222 W nvr-Juri@ l @3M 3. nn 8 Il m B. E D.. D E U S s H1 Rm L I A H W N L L E W D A E R .T nw L E V. 0 T S 3 SHEETS-SHBET 2.

TH( NORRAS PETERS OO, PMTU-LITNO.. WASHINGTON. D $2.

No. 1,397. REISSUED FEB. 3, 1863. J. G. TREADWELL n W. HAILES.

STOVE.

3 SHEETS-SHEET 3.

Aperspective view of the lire-pot andof theii-n`- "tier-side of lower portion of the coal-reservoir as the saine 'appear when separated from each UNITED STATES JOHN c. TREADWELL vAND 'wir Ii-AILES, or ALBANY, NEW

AssiGNoiis To WILLIAM HAILEs AND ELLEN r; TREADWELL Specification ibrniing part of Letters-Patent No. 32,257, dated May' 7,

- February 3, 1863.

.To all whom it may concern: y

Be it known that we, JOHN Gr'. '.lnniiDWnLL` and WILLIAM HAiLEs, of Albany, in the State of New York, are the inventors of certain new and useful Improvements in' Baseurning Stoves or Furnaces, of which the'following is afull, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciiication, in which- Figure 1 isa vertical. sectionina-line at right angles to the smoke and draft flue. Fig. 2'is a similar section directly throughv the smoke and draft ue. Fig. 3 is an inverted horizontal section 'through the base part of the stove in the line :v :vof Fig. 2. Fig. 4 is a The same letters of reference in the several figures indieate'corresponding parts.=

' The subject of base-burning or; reservoir. stoves andheaters has long engaged the attention of the public, and the success of this class of stoves is no longer a question of doubt and the value thereof is anevery-day'experience of hundreds in different parts lof the country, idthe only question-that now remains to be solvedis, whichis the best or most economical and beneficial 4inode-of embodying the principle involved iu such stoves and heaters.' Our experience in this class of stoves is, that the niost beneficial eii'ects are to be secured from an organization Whichdoes not pass the products of combustion up', around,.and over the top of the coal-supply reservoir so as *tov* heat asurroundiiig `jacket thereof,but heats a .circulating or ascending body of air by inea-ns of radiated-heat fromthe'tre-pot, and at the same tiinehe'ats the base'of the stove by means of direct heat circu'ating through descending fines which lead into the ash-pitor 'around it and to the smoke and draft iiue also that the greatest economy, considering the increased benefits secured, from supply-V ing coaLcontinuously-out of a reservoir -is attained withv an arrangement which holds the superincnuibent body of coal in suspensionsuch arrangement being a reservoirwith a contracted discharge extending slightly down 1861:; Reissue No. L39?, dated into a' fla-ring or enlarged lire-pot, aronndor The effect of the first-named plan is to hus- 4band the radiated heat and use it for the purpose of Warming the upper part of 'the sto've and the room in -which it is situated, as well as for heating air for warming rooms above, if

desirable, and at the same time to so confine' the direct fire heat and keepit in contact with the base portion of the stove a suicient .length of time as te insure the warming lof the 'same to a' comfortable degree.

The eiiect of the second' plan is to relieve the incandescent coal from the weight of the .body of superincumbent coal, and thus obviate a compression of the incandescent coal in the fire-pot andl secure for the iiame a free expansionin a lively'and brilliant manner, land thus-enable it to act with great heating ei'ect upongthe lower portion of the stovey in its passage to the smoke and draft-fine. v

With the view ofl organizing-a stove or heater Vwhich operates on the base-burning or'coal-supply-reservoir principle, .and at .the

ysaine 'time 'embracesthe two plans ofoperation above referred to, wehave devised Y the following plan of construction:

A is the base of our stove, constructed with a chamber, B, which extends around and beneath the top plate of the said base. In this chamber air may be 'admit'ted through the front passage,ia. Upon'the top plate of the base A is-erected-a support, C, for a horizon.-

tal grate,-D, and a fire pot', E, 'as shown. The

support forms a chamber below the grate, and out of the. front of the support a portion of metal is removed, as at b; so that air to the iire on the grate may have free access when the ordinary regulator or damperis open.

In order to insure the passage o f the air to the fire onlyfrom below the. grate, a cut-oil", c; extends out from' the upper front part of 'the support C', and rests upon two lateral stops, d, .which extend out from the front of the support, as shown'. 'The-top plate of the ironic, y

.trudes above the llunges'to as indicated atg g.

material, as shown at m.

horizontal flange, and bolts by the same to the under side of 'the flange h of -the coallsupply forated with three apertures, F F' F, which I communicate with'the chamber B. The apertures F' Fz have lvertical pipes F3 F4 placed iny or around them, while the aperture F has' the draft and smoke pipe or iiue F5 placed in or around it, as shown. The pipes F3 F'1 extend up to the upper riur of the re-pot E, and connect to perforated flanges or ears of s x.id pot,'so that a space, f, exists between the pipes andire-pct, as shown;A 'The outer portion of top'edgeof the pipes F3 l1" proa slight degree,

'The tire-pot flares at top andeontract's at its bottom. The Hare and contraction are gradual. The section of the metal .of which. the pot is made shows a gradual Vdecrease in thickness from the center of the depth ofthe pot in an up and downward direction, asindcated at 1 2 3.' This construction or form of the metal insures an equahle heatingof the' pot at all parts 'and a uniform expansion and contraction by the principle vof eonduction-' the thickest and'most intensely-heated portion imparting to thefthiunest or less intensely-` heated portions a largeamcnintv of its heat on' -the principleju'st mentioned. Above the tire-pot andwertical pipes the i coalfsup'plyreservoir G"isarranged. This@ reservoir is constructed with a flange, h, at its base, said flange turning down at its outerf edge so as to form a right angle or thereabouts, as shown at i. -The rim' of the flange iits down upon the rim of the repot,'and incloses the top opening ofthe lire-pot and of the vertical pipes within a continuous chamber, j, as represented, the said chamber constituting an enlargement to the upper portion. of the fire-pot, as it were, and thus giving increased ro oni. for the expansion -of the llame.

The diameter ot' the coal-reservoir is decreased below the point where the body' of tension or 1in g ilange, 7c,-Whichis in formof an' inverted frustum of a cone. This .flange also serves, in .connection with a detachable ring, l, which also is in form of -a-n Aiirverted frustum of a cone, to form zi-frame or sash'for l ldirect draft-flue when the re is tirst stlrted,

the reception of tire-brick orl other-fire proot`- The ring l hasa reservoir. The tirer-brick are shaped so as to form,.wheu put togetheuan inverted frust'um of aeone, and they therefore, when clamped between the. devices k l, cannot descend separately out ct' their places, nor can they do so uoitedly, as the'largest circumference of the con-ie 'frustuni 'm cannot pass `through the space between the lower ends of .the devices 4 vk l. yIt will be observed that therfirebri'ck continues the contraction of Vthe coal-supply --reservoir, and thus insures a gradual descent of thecsupply coal npon-thefcentral part of the bed of incandescent coal, and at the same time leaves a large and open space outside of the conic frustuin m for the 'free burning and" expanding of the gases ortlame. -This result is alsofurthered bythe dishing form of the flange h, the same forming a large circulating lame-channel,j, all around the upper edge of the tirefpot, as illustrated.'

The 4reservoir G is continued up to a horizontal div1sionplate,1, ofthe stove by means ot' an extension, G, as shown. The divisionplate I has a large coalinduction hole and passes through the removable cover-plate .'f"

otthe hopper, and also through a weight, s2,

vas shown. The weight s2 is not level on its bottom with the top surface of the cover- 'plate J2, n or' is the quantity of metal on one side of the:'rod as 'great-as that on the other side. The cover-plate,the valve, the rod, and the Weight 'are allconn'ected together, so that .by taking hold ot the rod the wholefcau -be lifted togetherthatl is, whenythe valve is raised first to its full stroke-but the connection is-also such that when the valve is required to beraised a less distance than its v full stroke, the movement'ot the valve-'is independent of'ythe coverfpl'ate JfZ-,therefore the'branch line rcan he opened and closed or the d amperv alv e'nf adjusted in its cen-` tertand'several hot-air passages o o, near;V .its circumference or'ou tside of fthe circle of the coal-supplyreservoir, as shown.

Around the-central hole, n, there is constructed a small combined cylindric and conic hopper, J, which is furnished Withan adjustable valve, s, anda` y removable cover-plate,'J2, as hereinafter described. Through and'from the rear ot'xthis hopper there extends a branch draft-fina?, the saine leading into the main draft-hue E5,-

as shown. In order toope'n and close this' due 1',- and also to open and close the induction-hole to `tlie coal-supply reservoir, the taper valve s is fitted to the .lower part lof the v'hopper J and up from the center of'tlleback of. this valve a vertical rod, s", extends without disturbingthe coveiplate,a1id whenever such an adjust-ment ofv the valve is made, the

weight, 'by reason 'of its being unbalanced,

will automatically bind upon the lrod and hohl it and the valve in suspension.' l

lt is desirable to open the branch `of the andalso'before the cover-plate J 2 is removed, Erst, in orderto obtain a powerful draft, and,

'secondi to vpass olf the pent-up gases in the coalfreservoir through the branch liuc, instead this casing incloses a Iportion of the lire-pot` and-of the vertical pipes. and draftrue. This part is finely perforated Jall round so as to admit air to the first wall'to be heatethas indicated at w.' The part L of the casing. incloses the remainder of the vertical pipes and lire-pot, und also a small portion of the coalto` and unites with a stationary top or finish- This part of the casing is not ing plate, W2. perforated, but the plate W2 has perforations through itfor the escape of the confined heated air wi into the room or into pipes leading' to-rooms above, as 'indicated by arrows w. It will be seen that the air circulates all about the radiating-surface, and thus protects the same from rapid destruction by the lire, and while this is the case the air is very thoroughly heated, anddischarged in that state into the room where the stove is situated or into other conductors.

We have given a minute description of one practical' mode of embodying our invention, but in doing so we have not intended that we should be understood as confining ourselves to the details mentioned, as it is obvious that the invention may be embodied in various ways. For instance one or more than two vertical pipes like F, might be adopted.'

Again, the contraction of the. discharge end of the coal-supplyreservoir below the su perincumbent body of coal may be effected in various ways and still not depart from the principle involved in holding the mass of coalv in a chamber or section of a chamber which is of greater diameter than the section or part through which .the coal is fed-to the fire. For instance, a cylindric discharge of a given diameter connected with an upper extension of greater or gradually-increasing diameter above the discharge would embody the principle involved in our reservoir. Bo, also, would two cylinders-one of ya small diameter and the other of a large diameter-united by an inclined o'r horizontal shoulder.

lt will be observed that we have a base- Y burning stove with a coal-supply reservoir and a hot-air chamber, which is adapted for heating. the room infwhich it is situated or the same and rooms above, Aand still the organization has butv two walls or shells, and that, in connection with this, we have an arrangement which` effectually heats the lower portion of the stove or structure, and also veryl perfectly controls the feed of the coal to tho re.

' What is claimed asfnew herein, and as the invention of JOHN G. TREADWELL and WILL- IAM ll AILES, is-

l. A base-burning coal-supply: reservoir stove or furnace, so constructed that the products of combustion do not pass up, aro und,and above the supply reservoir nor up through the grate, but down outside of the fire-pot toward the base of the stove and out through a main draft-line which leads directly from a space or chamber about' the lower .part ofthe stove', all for the purpose vsetfor-th, and substantially as described.

2. The contracting of the discharge-end of the coal-'supply reservoir, the' expanding of the fire-pot, and the `extending of the flamepassage downward for united operation in a `base-burning coal-supply reservoir stove or furnace, essentiallyas set forth. A tire-pot resting on a base and imperforated on its inner or .outer circumference orfrom its inner to its outer circumference, and so constructed and applied with respect to a coal-supply reservoir .that -an inclosed horizontal chamber for the free expansion and circulation of the flame and gases is formedall around and outside of the contracted discharge and above the upper edge of the firepot, substantially as and for the purpose set forth. y

. 4. The vdescending passage or passages, in

vcombination withl the continuous flame expansion and circulation passage and a main 'draft-line leading out of 'the base or. lower part of the stove or furnace, substantially as set forth, and for the purpose described.

5. Constructing the tire-'pot of a base-burnin g coal-supply reservoir stove or furnace with an imperforated circumference and i'n form of a trumpetmouth at its upper portion, in combinat'lon with descending flame-passages, substantially as described, and for the purpose set forth.

' 6. Constructiong the metal of the fire-pot with a gradually-decreasing thickness from the .center of its depth both'- up and downward, substantially7 as described.l

f7. A detachable ring, in combination with-a fixed ring-liange of .acoalsupply reservoir,

for the purpose of confining the fire-brick or other'reproof substance on 'the lower part of the reservoir.

8. The combination of a perforated jacket or casing, a coal-supply reservoir with a contracted discharge,'a fire-pot lwith a ldame-expansion chamber around andabove its upper edge, and ldescending flue or flues and a main draft-finer substantially as and for the purpose described.

9. The combination, in a base-burning coalsupply reservoir-stove, of a descending flue or iiue's and a perforated casing, substantially as and for the purpose set forth.

' 10. In a base-burnin g, coal-supply reservoirstove or furnace, a branch flue opened and closed by a'damper above the base of the firepot, in combination with a descending pass-i age or passages leading'to the lower part ot the stove, and with the main draft-ilue leading out of the lower part of the stove, substantially as and for the purposes set forth.

1L The Weight constreted and applied in upper part of the stove by radiated heat aetconnection with the damper-valve in the maning upon lthe circulating air, substantially as ner and for the purpose set forth.' d described. f v v 12. The combination of theperforate jacket y l or case, the reservoir for. coal, the tire-pot, the descending flue or fines, the hollow space v Y about the base of the stove, and the chimney .Witnessesz ue, whereby the base of vthe stove isxheated Y W. W. CRANNELL. v by direct hea-t of Vthe flame or gassand the GQVAN ALLEN.

Images