US550194A - Upright boiler - Google Patents

Description

(No Model.)

' .P- L. RICE.

y UIfRIGHT lBOILEIEL. No. 550,194. Patented Navy-19, 18.95.

ANDREW BLRHAM. PHDTU'UTHQWASMNGTOMRQ UNITED STATES PATENT OEEIcE.

FRANK I.. RICE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE RICE ENGINE AND BOILER COMPANY, OF DES MOINES, IOWA.-

SPECIFICATION forming part of Letters Patent No. 550,194, dated November 19, 1895.

Application filed December 31, 1894. Serial No. 533,393. (No model.)

T @ZZ whom it may concern.'

Be it known that I, FRANK L. RICE, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Upright Boilers; and I do hereby declare that the following' is a full, clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in uprightboilers designed for heating water and the generation of steam for miscellaneous purposes, and more particularly to the special features of construction and conguration by which I obtain an exceedingly simple but effective device, easily manufactured, and therefore relatively-inexpensive to the purchaser, and which, by reason of its shape and details of its construction, is not only durable, but specially effective for the purposes intended.

The invention will be readily understood from the subjoined description thereof, in connection with the accompanying drawings, but will be more particularly pointed out in the appended claims.

Figurel is a central vertical sectional View of a device embodying my invention. Fig. 2 is a sectional plan view of the latter, t-aken upon the line 2 2 of Fig; 1. Figs. 3 ande are similar views taken upon the lines 3 3 and 4. 4. of Fig. l, respectively.

The outershell of the boiler proper consists of two main sections or metal parts A B, the former of which contains the iire-box A and the latter a smoke-pipe B. These two sections A B are preferably of cast-iron, the conformation of each being such that all of its parts may be cast integral in one operation.

C is abase or support of any approved construction, provided with an annular shouldered recess c, within which the bottom end of the lower section A of the outer shell of the boiler may rest. Said base contains a grate C', of any approved construction, suitably supported upon a flanged bracket c', and is The lower section or part A of the boiler proper is preferably cylindrical in form and is provided at its upper margin with an outwardly-extending annular iiange a, which corresponds with a similar flange b projecting from the lower margin of theupper section B, and by means of which the two sections A and B may be firmly secured together by nuts a upon the bolts a2, extending through suitable apertures` in both flanges a b. j A gasket or packing b', of rubber or any other suitable materialfis interposed between the two flanges a b to insure a tight joint.-

The lower edge of the bottom section A is extended inwardly at a3 to form a relatively narrow annular,horizontally-arranged bottom therefor, and integral with which and extending from the inner margin thereof is the annular inner shell or wall a4, extending at an angle wit-h the outer shell. Within this inner shell or wall a4 is a conical chamber extending from the bottom lto the top thereof and greater in diameter at the bottom than at the top, the lower portion of which chamber forms the fire-pot or chamber A. At the upper end of this chamber and extending outwardly from the wall a4 thereof is the annular flange a5, which registers with a corresponding flange b2 on the lower margin of the wall b3, that constitutes the smoke-pipe B'. In one or both of the adjacent faces of the flanges a5 b2 are annular recesses or grooves b4, in which is placed an annular gaske or packing of rubber or other suitable material b5, whereby a water-tight joint is formed between the flanges b2 a5.

The smoke-pipe B', being integral with the upper section B and the inner shell surrounding the combustion-chamber A with the lower section A, it will be manifest that no separate means of uniting the smoke-pipe B' and the said inner shell a4 will be required, the external flanges and the bolts heretofore described or other equivalent means of uniting said upper and lower sections A B being sufticient for the purpose. I am thus enabled to obtain a complete and effective union of the two sections A B from the outside of the apparatus and require no interior rods, bolts, or other clamping mechanism. `The smoke-pipe B extends'slightly above the upper portion of the upper section B, as shown at be, for the IOO more convenient attachment of the ordinary smoke-pipe or chimney thereto, and by which the products of combustion may be carried away.

Surrounding the inner shell a and within the outer shell is a water space or compartment F, and as a convenient means of access to the iire or combustion chamber A, I provide top, bottom, and side walls d d, which extend through the water-space and connect the wall ai* of the inner shell with the outer shell of the lower section A at any convenient point, but preferably near the upper end of said lower section, as shown in Fig. l. l) is a door of any approved construction removably secured in any well-known manner to the outside wall of the said lower section A. At a point between the top of said door opening and the iiange of within and above the combustion-chamber A is a iiame-deflecting or spreading plate E of a diameter considerably less than the interior diameter of the combustion-chamber. Outwardly-extending bridge-walls e e connect the plate E with the inner shell a4. This plate or spreader E is shown in Fig. l in a somewhat inclined position; but while this is a preferred arrangement it is not to be insisted upon, and the inclination may not only be varied, but the spreader E may be arranged horizontally, if necessary.

It will be observed that there is an annular space between the outer wall of the lower section A and. the wall of the inner or combustion chamber A, constantly widening as it approaches the upper end of the section A, and which forms the water-space F, before referred to. Then the deiiecting-plate is hollow, as illustrated in the drawings, communication between the said water-space F and the interior of the disk or spreader E is afforded by means of radial passages el extending between the supporting walls or bridge-walls e, whereby a free circulation of water may be had.

Gis awater-gage of any approved construction, suitably connected to the sections A and B, whereby the height of the water in the boiler may be determined in the usual manner, the water being supplied in any convenient manner through the pipe G'.

ll is any ordinary safety-valve secured in the top oll and communicating with the interior of the upper section B, for the purpose of automatically regulating the pressure of the steam therein. It will be observed that the upper port-ion of the upper section B is rounded; but this is not material, and any other coniiguration may be employed, if desired. The water in the boiler will ordinarily extend within the water-space F some distance into the upper section B, as indicated, the space in the said section B above the water-line forming a steam-dome.

The wall d4 surrounding the combustionchamber A is preferably fluted or corrugated, as shown in Figs. 3 and 4, an advantage in this latter construction consisting in affording additional heating-surface and also a better and cleaner iire.

ln practice the operation oi. the boiler is simple. Vater being placed within the wa ter-space F by any suitable apparatus, and a fire being placed in the combustion-chamber A/,the products of combustion will rise until they strike the deliecting-plate E,which latter will spread and deflect the flames and particles of combustion outwardly and against the .inner wall, which action tends to materially increase combustion ,to raise the temperature of the upper part oi. the wall a4, and to thus increase the capacity of the boiler as a whole. The lower part of the water-space F contains, it will be observed, a shallow annular sheet of water, and this arrangement also aids in the rapid heating of the water. This general result is also especially promoted by reason oi' the hollow deilecting disk or plate E, which carries a shallow sheet of water that becomes very quickly heated. lVhile, therefore, a flat deliecting-plate may be used with success, I prefer the hollow disk described for the reason just stated, and, also, because a better circulation of water is thus insured, thereby greatly facilitating the operation of the boiler. lt will also be noted that the corrugations of the inner shell, together with the deilector-plate integral with said shell and the iire-door walls unitingthe inner and the outer shells, greatly strengthens the lower section, while the ilangedmeeting-surfaces of the two sections and the ex- TOO ternal boltin g equally adds strength and ri gidity to the boiler as a whole.

The above-described boiler, by reason ol' its extreme simplicity and practical arrangement, is found in practice to be more eilective than more expensive and complicated devices now employed for the same purpose.

Various modifications may be made in details without essentially altering my invention, all of which I desire to be included as within the scope of my invention, as stated in the appended claims.

I claim as my inventionl. As a new article of manufacture, an up right boiler, comprised only of an upper section and a lower section, the formerbein g provided with an interiorly arranged smoke pipe integral with or cast in one piece therewith, and the latter being provided. with an interiorly arranged combustion chamber integral with the lower section, the upper surface of the combustion chamber registering with and against the lower surface ot' the smoke pipe, a suitable base upon which the boiler proper is mounted and means for suitably connecting the two sections together, substantially as described.

2. An upright boiler comprising only an upper section provided with an interiiorly arranged integral smoke pipe and a lower secI tion provided with. an interiorly arranged integral combustion chamber, the upper edges ITO of the combustion chamber registering with and against the lower edges of the smoke pipe, means for suitably connecting the two sections together, and a deiiecting plate positioned` in and near the upper end of the combustion chamber integral with the walls thereof, substantially as described.

3. An upright boiler comprising only an upper section provided with an interiorly arranged integral smoke pipe and a lower section provided with an interiorly arranged integral combustion chamber, a hollow deliecting plate integrally arranged within the combustion chamber, near the upper end thereof, a water space surrounding the combustion chamber opening directly into the upper section and means for the passage of wat-er therefrom into and out of the said hollow plate, substantially as described.

4. An upright boiler comprising only an upper section having an interiorly arranged smoke pipe integral therewith and a lower section provided with an inner shell integral therewith constituting a combustion chamber, the upper surface of the shell registering with and against the lower surfaces of the smoke pipe, a water space in the lower section surrounding the combustion chamber, a space in the upper section surrounding the smoke pipe, the latter space communicating directly with the former, and means located outside of the boiler for securing the two sections together, substantially as described.

5. An upright boiler, comprising a cylindrical lower section having an outwardly directed annular flange at its upper margin, and an inwardly arranged tapering shell integral therewith to form a combustion chamber and provided at its upper margin with an annular flange, an upper section provided with a downwardly extending shell constituting a smoke pipe, the lower margin of said upper section and of said smoke pipe being provided with annular flanges corresponding with the flanges on said lower section and shell, suitable packing located between the meeting. surfaces of said iianges, and bolts engaging the said external flanges of the upper and lower sections for clamping the latter together, substantially as described.

6. An upright boiler, consisting of two main parts adapted to be bolted together externally, the upper part comprising a steam dome, and a downwardly directed smoke pipe cast integral with the said upper section, the lower sectioncomprising an outer cylindrical shell and an interior shell, the latter constituting a combustion chamber, a water space located between the outer and inner shells, an opening through both shells affording a means of communication to the combustion chamber, a hollow deflecting plate arranged near the upper end of the combustion chamber integral with the inner shell and having lateral openings through which water may pass from the water space into and out of the said de fleeting plate, substantially as described.

7. An upright boiler comprising a base C provided with a grate C', two main sections A and B of cast metal, the lower section comprising an outer shell and an integral tapering shell or wall a? with a water space between the two shells, the space within the inner shell constituting a fire chamber, a passage or opening through said shells by which communication may be had with the combustion chamber, a hollow deliecting plate in the upper end of the latter provided with lateral passages connecting with the water space, and means for securing the two sections together from the outside of the boiler, substantially as described.

In testimony that I claim the foregoing as my invention I aflix my signature, in presence of two witnesses, this 28th day of December, 1894.

FRANK L. RICE. Witnesses:

TAYLOR E. BROWN, WILLIAM L. HALL.

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