USRE14524E - James t - Google Patents

Description

J. T'. STODDARD.

WOOD REFUSE INCINERATOR.

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Reissued Sept. 24, 1918,

UNITED STATES PATENT OFFICE.

JAMEs 'r. STODDARD, or RoR'rL'AND, OREGON, Ass'IGNoR ro AIR cooLE'n BURNER oomrANY, or cHEHALIs, WASHINGTON, A CORPORATION or wAsHINeToN.

I WOOD-REFUSE INCINERATOR.

Original No. 1.171,005, dated February 8, 1916, Serial filed August 17, 1917. Serial No'. 186,807.

To all whom it may concern.

Be it known that I, JAMEs' T. S'rooDAnD, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements. in Wood-Refuse Incinerators, of. which the following is a specification, reference being had to the accompanying drawing. 7. My invention relates to that class of devices used to burn the sawdust and other wood-refuse taken from mills or factories engaged in making woodproducts;

The object of my invention is to provide" a device of this kind in which the construction is arranged to produce a suppl of cool air upon the inside and outsideo its thin metal walls and thus preserve them against destruction from the intense. heatdeveloped in burning refuse of that kind,

also to secure the best possible *draft to the diminishing in diameter as the top of body' material burned. I attain these objects, as well as other advantages, by the construction, combination and arrangement of parts illustrated in the accompanying drawing, which forms a part hereof.

Figure 1 is a side elevation with parts.

broken away and showing sectional elevation therein. Fig.2 is a transverse 'half section on the line 22 of Fig. 1.

Fig. 3 is a plan view of the top, showing the spark arrester. i

line 44 of Fig. 1.

. Fi 5 is a longltudinal section of-leg on the line 55. of Fig. 3, showing the attachtheir lower ends rigidly secured in footings 7 anchored in the earth. By preferred construction, the body A comprises a series of horizontally disposed hoops 8 secured to the legs 6 and spaced one from another at de-' sired intervals, the said hoops preferably Specification of Reissued Letters Patent. Reiss'ued Sept, 24, 1918,

No. 30,064, filed May 24,1915. Application for reissue and preferably upon the inside thereof, .is

applied and fixed a wall 9,,preferably made of sheet metal divided into horizontal sec tions 10.

The lower edge or ski-rtof the wall 9 is supported, as by the legs 6, at a hei ht above the ground level, to provide space or the admission of an ample supply of air all around it.

A conveyer 11 is. adapted to make discharge, at a suitable height above of material to be burned into the interior of the'body A through the wall 9.

A convenient support for the usual foraminous spark arrester, may be provided in curved'rods'or archmembers 13, spanning the distance, respectivel betweenlegs 6 to which they are unite as indicated, for example, in Fig. 3. v The wall B preferably extends a suitable height above the lower'end of the body wall 9 and also to allow a. suitable space between the two walls laterally.

Thehearth 14' is disposed-within the body A. It may be defined by the wall'B ground,

. J the interior thereof underneath the hearth Fig. 4 is a cross section of a leg on the H. The ash-pit has a fire-grate 16.

Material 17 'is shown in cineration. My device should be set up in a suitable location'near' a refuse mat'erialsupply place so that the material can be easily conveyed position for into the incinerator and the danger from contion can also .be minimized.

door may be and usually is provided a convenient position in the-body so that the operator can enter the body 'A to start a fire, also to remove ashes. When the fire is started, sawdust and refuse wood material are sent through the eonveyerand deposited after carried on indefinitely. A draft enters'the middle part of the body A-from' below through the ash pit, and also there is an abundant draft from the sides to insure speedy and complete incineration of everything deposited.

on the hearth and the incineration is there- I portion becomes heated the air rises therefrom and cold airconstantly rushes against all parts of the outer surface as indicated by.

or .burn out.

It'will be seen,that owing to the shape of the body, a chimney effect is produced which makes an excellent combustion draft.

upper portion of the body being heated, the air of course naturally rises and the cold air flows constantly over the inner surface as shown by the arrows. Onthe outer surface of thebody it will be noted that as each the arrows. :This, and the thin metal in the wall, insure a temperature so low in the body and'thelegs that they will never fuse construct the legs of channel iron. The wall a being secured on the inside'of the frame in cost of illustrated as circular, it may also be of protects the latter fromtheiheat. v The channels in-thelegs facing inward also assist'in the passage of the cooling drafts upward.

polygonal or other suitable form.

The spark arrester is easilysecured on a device of this form and perfectly prevents all danger-of setting out fires.

WhatI claim is:

body locate ing an upwardly extending wall,- forming V an'inclosed combustion chamber, means for and spaced supportin elevated 51 ove the foundation, and a wall extending 'uprw'ardly. from the foundation om the lower portion'of the body wall sufliciently to'per mit' an indraft of air beneath the body to the interior thereof, ,said second wall extending above the lower edge ofsaid bod 2. incinerator o the character described, comprising a suitable foundation, an upright body with openings at each of its ends and open throughout itslength, means to support said body at a suitable height over the foundation, and a .wall risin from the foundation adjacent to the b0 yon all sides and havin its up er ed e arranged at a suitable distance ateral y from the body to provide for the admission of air and also extending above the lower edge of said body. 3. An incinerator of' the character described, comprising a suitable foundation,

an upright body with openingsat each' of will be further seen that thecold air enters a .from below, and, while supplying all required for combustion, it

a sofollows up- V ward- 'e ilong' the interior of the wall. The

In any event the life of the body is. conserved indefinitely. I prefer tosaid wall-with its lower edge itsends and open throughout its length,

said body being cbmposed of a frame, and

a metal wall'on the inside of the frame,

means to support the body at a suitable height above the foundation, and a wall rising from the foundation adjacent to the body on all sides and having its upper ed e arranged at a suitable distance lateral y from the body to provide for the admission I of air and also extending above the lower edge of said body.

' 4. An incinerator of the character described, comprising a suitable foundation, an upright body with openings at each of its' ends and open throughout its length, said body being compo'sed-ofa frame and a metal wall on'the inside of the frame, means to supportthe body at a suitable height above the foundation,,a hearth rising from the foundation within the body, a Wall adjacent to the body on all sides and having its upper edge around the hearth spaced laterally from the body sufliciently to permit an indraft of air beneath the body and also extending above the lower edge of said body. a a

5. An incinerator of the character described, consisting of the combination with a support'having a substantially horizontal surface, of an upri ht shell surmountin the same, means for a itting air substantially all around the lower edge of'said shell, said shell being open on all sides from bottom to top'for the uninterrupted passage of' air or other gaseous substances, and having the upper portion offits vertical axisunobv structed, and additional means for supply- 1. An incinerator of the character de e scribed, corn rising a suitable foundation, 9,

d over the foundation and having' an to the sup ort for securing combustion of the material placed thereon, whereby material tobe burned whensupplied to said surface within the shell and thereig nited willgenerate within the shell and keep in continuous motion an ascending column of gaseous products of combustion having .suflicient force to suckin a volume of air the ,same time to secure an 1 ow of air around the lower edge offsaid shell and s'uflicient to support'the combustion andat maintain against the inside of the shell an upward flow of such air suflicient in 'volume to prevent the overheating of the shell.

. 6. An incinerator of the character described, com rising a hearth surface on a which the re se to be burned is placed, an

upright open ended shell surrounding and 'extendin above the hearth surface, means for supp ying air to thehearth surface to secure combustion of the refusefthereon, and additional means for. supporting the shell to provide anopen space beneath the same on all sides for the free inflow of air into the lower portion of the shell, said shell having an interior unobstructed to the passage of the productsof combustion therethrough from bottom to top, and of sufliupright open ended tapered shell surroundlng and extending above the hearth surface, means for supporting the shell to provide an open space beneath the same'on all sides for the free inflow of air into the shell, ad

ditional means for supplying air to the hearth surface to secure combustion of the refuse placed-thereon, said shell having an interior unobstructed to the passage ofthe air entering beneath products of combustiontherethrough from bottom to top and of sufiicient' cross sectional area to provide for the ascension of the products of combustion from the burning refuse and additionally for a blanket of cooling air entering beneath the shell and ascending in contact with the inner face thereof, and means for delivering refuse tobe burned centrally upon such hearth surface.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

JAMES T. STODDARD.

Witnesses HO'WARD 0. Rooms, M. NEVILLE.

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