US1082576A - Furnace-front. - Google Patents

Description

w. WHITE & w, c. WALLACE. FURNACE FRONT.-

APPLICATION FILED MAR. 23, 1912.

1 0 2 57 I Pa tented 'Dec. 30, 1913.

UNITED STATES PENT carton."

WlLQIAM ALBERT WHITE AND WILLIAM CARLILE WALLACE, OF NEW YORK, N. Y.;

i SAID WALLACE ASSIGNOR 1'0 SAID WHITE.

FURNACE-FRONT.

To all whom it may concern Be it known that 'we, \VILLIAM A. Wmrn, a citizen of the United States, and WILLIAM CARLILE lVALLAoE, a subject of King George V, both residents of the borough of Manhattan, in the city, county, and State of New York, have invented certain new and useful Improvements in Furnace- Fronts, of which the following is a specification.

This invention relates to oil burning furna'ces and our improvements therein may be briefly summarized as follows: First: by the provision in a hollow furnace front, of centering irregular heat passages in which to break up and preheat the air supplied for combustion. Second: in conjunction with the heated air supply aforesaid, and a centrally arranged oil burner, the provision of a concentric air inlet passage, said passage having a constrictedor Venturidike neck. Third: in Conjunction with the aforesaid heated air supply, oil burner and concentric air inlet, the provision of an approximately cone faced valve, slidable longitudinally upon the burner tube and adapted to reignlate t-he quantity of heated air supplied to the burner.

In the drawing accompanying this application: Figure 1 is a vertical section of a furnace front lraving our improvements; Fig. 2 is a front view thereof, partly broken away to expose the radial corri-igations on the inner plate; Fig. 3 is a. detail showing a partial view of the furnace front with air box and-pressure pipe, and Fig. 4 is a modification showinga partial detail view of the corrugated inner plate showing a protecting plate therefor with air exits...

In said figures'the letter (1 indicates the. shell-of an'oil burning furnace, of which the frontportion is constructed according to my invention. Said front portion is com posed in part of the inner circular furnace or. heat plate 7), having radial corrugations to enhance rigidity while providing a maximum of heating surface, an outer, circular plate, as 0, being separated from plate I) by an intervening space, which is divided into a nl1!n11er of centering passages (Z by ascries ot' undulating, radial partitions (l, and short, intermediate partitions d Air inlets, as c, are provided near the peri 'ihery of plate 0, and the air received thcreat, in passing to the center is broken in its pas- Specification of Letters Patent.

Application filed March 23, 1912.

Patent d Dec. so, 1913. Serial No. 685,7".

sage by impingement against the undula tions or angular surfaces of partitions d. An oil burner, as f, is supported centrally and axially through plate a, as by a spider or housing 9, which may be boltecl to said plate 'q; the burner no'zzle projecting toward the furnace interior, through a central opening formed in plate I). Projecting inwardly from plate 6, in concentric relation with the oil burner f is an air outlet or sup ply tube b, said outlet extending inwardly beyond the burner nozzle, and having a constricted or Venturi-like neck portion h, to increase the velocity of air inflow at the point oil-initial combustion.

A'n approximately cone-faced valve, as 2', is mbunted concentrically about and adapted to slide longitudinally along the burner tube, to increase or decrease the size of the air passage allowed through outlet 11, and thereby regulate the quantity of preheated air for combustion supplied to the burner. The valve i may be hollow, and haveropenings z" in its con-e face to permit air to circulate about the burner tube. Said valve may also have an observation opening or tube 6 therethrough. A bolt or stud, as 7', extending from the rear of valve 2', passes outwardly througha hole 1')I'O"ltlt(l therefor in spider g, and may thereby be manipulated to operate the valve.

Obviously, the supply tube it maybe held in position in any suitable manner. As here shown it has an annular flange h by which it is bolted to airing 72,", held against the outer surface of plate I), lying within a recess therein, whereby it may be easily removed. The spider g has a flange 9 through which it is held in engagement with the plate 0 by pivotal catches as p Connections as the legs It connect spider g with ring it. In this manner the spider g, carrying the burner, valve and supply tube may be easily adjusted and'secured in place, or removed.

When it is desired to furnish assisted draft to the furnace, a circular air box, as Z1, may be provided. exterior-1y of plate 0, lilClOSlllfI the inlets 2, (see Fig. 3) a supply pipe, as l, communicating therewith from a compressed air supply, In the modification shown in Fig. 4 we may employ an interior relatively thick plate, as or, lying against the corrugated plate h to protect said plate from the intense heat of thefurnace and -of plate I).

thus prolong its life. In this manner air spaces n will be formed between plate m and the channels formed by the corrugations .llelutively large sized apertures 0 may be provided in corrugations-i of plate 7/, conuimnicating with spaces n, and relatively sn'mll apertures p in plate in perniit streams of heated air from spaces to enter the furnace over an extended area to assist combustion.

in the operation of our invention, the valve being adjusted to supply the rcqui site quota ot' air to the burner, the air pass ing through passages (Z, broken in its traverse by impingement against the angular surfaces presented by the undulating purtitions (Z, and is raised in temperature by passing mcr l'ilt. heated partitions. The valve regulated quota of heated air is ale-- livered through the constricted supply tube at the initial f(il]'il, llSllOIl zone, the arrange ment provided assisting in the promotion of high elliciency in combustion.

We claim:

1. A furnace front having a series of irregularly curved, centering, unheating and supply passages in the same vertical plane therein, an nit burner axially penetrating said front, and means supplying heated air from said passages to the combustion zone of said burner.

A furnace front composed of a corrnouted inner plate, an outer plate separated therefrom, a series of inwardly (directed, heat coiulucting, irregulurly curved partitions forming passages between said plates, air-inlets at the periphery of said outer plate, and a centrul outlet in. said inue? plate; to gcther with an oil btuxucr penetrating said front and an air supply tube extending inwardly from said outlet in cmu-ciulric relation to the burner nozzle.

A furnace front having an air heating and supply passage therein. on oil burner extending through said front. and a, con

and supply pas age therein, an int! hcrc- 1 momma for, and a constricted supply tube, out- 'wurdly flared at both ends; together with an oil burner directed toward and terminating Within said supply tube, and a COIlOltlill faced valve to regulate the flovv of air through said supply tube.

5. A furnace front having an air heating and supply passage therein, an inlet therefor, and a constricted supply tube, ontwardly flared at both ends; together with m oil burner axially penetrating said front and terminating within said supply tube, a support for said burner, a conoidal faced valve concentric with and slidable over said burner, and having its apex presented to said supply tube, whereby the air'in'ipinges on the fuel jet within said supply tube, and means for. moving said valve to and from said supply tube to regulate the air admissum,

(3. A furnace front composedof u corrugated plate, means conducting air to the outer surface of said plate, a protecting plate lying against the 1nner surface of said corrugated plate, forming covered air channels with the corrugations, said corrugated plate having relatively large air openings COIUIIHP nicating with said air channels, and said protecting plate having relatively small air openings communicating vvith the furi'uice interior.

7. A furnace front having a burner tube axially penetrating the same, an air supply tube in concentric arrangement with said burner tube, a conoidal faced valve slidable upon said burner tube to regulate the air adn'iission through said supply tube, :1 spider supporting said burner tube and valve, and :1 ring supporting said air supply tube; to geilier with means uniting said burner tube, spider and ring, and means rcinovably securing the same in the furnace front, whereby the burner tube, air supply tube and valve may be removed as a whole from said furnace front.

Signed at the borough of Manhattan in the city, county and State of New York this 22nd day of March A. D. 1912.

\VILIJAM ALBERT WHITE. i

Y. )ARLTLE "ALLACE. Witnesses:

Same R, Shannan, Ginrrnuen .lll. (lormc.

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